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799 Cards in this Set
- Front
- Back
A ________ distribution system delivers power at user voltage from distribution transformers to customers. |
Secondary |
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What are the two basic types of overhead distribution system layouts. |
Loop
Radial |
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Circuits that tap off of a primary main are commonly referred to as |
Laterals |
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What are the major components of a typical overhead distribution system |
Secondary Distribution Lines Distribution Substations Distribution Transformers Primary Distribution Lines |
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Match each insulator in the left-hand column with the appropriate insulator description in the right-hand column. Pin Post Disc Spool |
Mounted on a pin that is bolte Cylindrical and mounted flush Can be connected together in Primarily used ot insulate seco |
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True or False: When secondary and primary conductors are strung on the same pole, the secondary is normally strung below the primary. |
True |
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Match each guy in the left-hand column with the appropriate description in the right-hand column. Down Guy Sidewalk Guy Pole Guy |
Connected from a pole to an a Connected to a pole, guided a Connected from one pole to a |
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A what wire provides a cone of protection to protect distribution lines from lightning strikes. |
static wire |
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True or False: Capacitors, reclosers, voltage regulators, and fused cutouts provide coordinated protection for distribution lines. |
False |
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True or False: A typical three-phase wye circuit is a three-wire circuit. |
False |
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A distribution transformer, on a wye circuit, is typically connected ________ . |
phase to neutral |
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A single-phase distribution transformer on a delta circuit normally has ______ primary bushing(s) |
two |
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True or False: The terms “delta” and “wye” identify the way that the windings on the distribution side of a three-phase substation transformer are connected together. |
True |
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Insulators, surge arrestors, and the primary bushing of a transformer on a 13.2 KV distribution system all would typically be (smaller,larger) than the same equipment on a 34.5 KV distribution system.. |
smaller |
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The_______ Voltage rating on the nameplate of a distribution transformer can be checked to determine the voltage of the circuit on which the transformer is installed. |
Primary Voltage |
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True or False: The operating voltage of a dual voltage distribution transformer is indicated by the position of a dual voltage switch. |
True |
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OSHA regulations require that lifting equipment’ be bonded to an effective _______. |
ground |
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Apprentice lineworkers may work on or with energized lines and equipment as long as they are _________ per OSHA. |
qualified |
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True or False: A ‘Lockout/Tagout’ program must be established before any employee works on lines and/or equipment that, after being taken out of service, could unexpectedly become re-energized, according to OSHA regulations.
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True |
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Match each type of poletop distribution equipment in the left-hand column with the appropriate identifying characteristic(s) in the right-hand column. Recloser Transformer Voltage Regulator Capacitor Sectionalizer |
Two primary bushings; an ope One or more primary bushing Three primary bushings;posi Square or rectangular shape Two primary bushings;an ope
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True or False: The main function of a utility pole is to support conductors |
True |
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What are the three main types of pole framing construction? |
Vertical Crossarm Armless |
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True or False: When a pole is built, the only concern is that the pole will be able to support the weight of the conductors. |
False |
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The type of insulator that is typically used to insulate conductors at a point where the conductors are dead-ended is a ________ insulator |
suspension |
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A _____ insulator usually has a metal base that rests directly on a crossarm or pole. |
Post |
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A ________corner is a type of angle pole used on vertical construction that has suspension insulators to insulate the line, but does not require the line to be dead-ended or cut. |
Running |
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A(n)_________ bolt is typically used to support and keep the proper spacing on double crossarms. |
Double-arm (DA) |
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True or False: The tops of poles should always be cut level and perpendicular to the pole to give the pole a uniform appearance and to be as neat as possible. |
False |
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The bolt that holds the crossarm or crossarms to a pole is called a ________ bolt. |
Through |
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A flat surface on a pole that is either cut or is a metal plate that is added is a _______. |
Gain |
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True or False: A wooden crossarm usually needs a means of bracing to help it support the conductors on the pole. |
True |
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True or False: A wooden crossarm usually needs a means of bracing to help it support the conductors on the pole. |
True |
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One type of bolt that is used to attach crossarm braces to a crossarm is a_______ bolt. |
Carriage |
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True or False: The length of a through bolt is calculated by adding the entire thickness of whatever the through bolt must pass through, plus the width of the crossarm, plus the width of the nut and washers and finally an additional one inch to allow for a protrusion of the bolt end. |
True |
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True or False: The purpose of a guy on a pole is to support the pole where the conductor is causing a strain greater than the pole can continually withstand and remain straight. |
True |
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A ______guy runs from an attachment on a pole to an anchor on the ground. |
Down |
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True or False: Since all guys have an insulator installed in them, they can never be a potential ground. |
False |
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A type of guy that uses a wooden pole to support another pole is called a_______? |
push or brace pole |
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A pole guy that supports a pole by means of a guy wire that is kept out from the pole with a metal strut is called a? |
Side walk guy |
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A cover that fits over a guy wire to make it easier to see is called a? |
Guy guard |
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A cover that fits over a guy wire to make it easier to see is called a? |
Guy guard |
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Which of the following are precautions that should be taken when working with guy wire? |
Maintain control when uncoiling the wire. Take measures to keep the strands twisted together when the guy wire is cut. When uncoiling the guy wire, make sure that it does not have kinks that would weaken it. |
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The two basic reasons for rigging are to maintain______of a load and to maintain a safe minimum ______ from energized equipment |
control electrical clearance |
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True or False: If the exact weight of a load to be lifted cannot be determined, it is best to overrig the job. |
True |
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What are the basic guidelines that are part of any rigging job? |
Inspecting the rigging equipment carefully Planning the job thoroughly Using the equipment properly |
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Many types of line equipment, such as transformers, are designed with______so that the load can be more easily rigged to maintain it_______. |
Answer 1: lifting points Answer 2: balance |
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True or False: Electrical clearance is a concern only if there are obvious obstacles at the job site, such as tree limbs or telephone lines. |
False |
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True or False: Electrical clearance is a concern only if there are obvious obstacles at the job site, such as tree limbs or telephone lines. |
False |
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Which of the following types of rigging equipment are designed to give the user a mechanical advantage? |
Hoist Block and tackle |
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A crew member must exert _______pounds of force to lift a 300-pound load using a block and tackle with four passes, or fall, or rope. |
75 |
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True or False: When more than one sling is used to lift a load, it is possible to rig the job so that each sling must lift more than the total weight of the load |
True |
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True or False: When a structure is subjected to more than one type of stress, the stresses tend to cancel each other out. |
False |
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The ___________ of a block and tackle is determined by the number of times a rope is run from one block to the other. |
Mechanical advantage |
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_______is the property that allows a solid object to stretch, bend, or compress under stress and then return to its original shape unless the______ has been reached. |
Answer 1: elasticity Answer 2: elastic limit |
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_______is the property that allows a solid object to stretch, bend, or compress under stress and then return to its original shape unless the______ has been reached. |
Answer 1: elasticity Answer 2: elastic limit |
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True or False: since a utility pole is a cantilever beam, the stress caused by a load or force pulling against the top of the pole will be higher than if the same load is rigged lower on the pole. |
True |
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In the videotape demonstration, a block and tackle was rigged from a _______in order to provide a lifting point directly above a transformer |
Gin pole |
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When equipment is raised or lowered, a tag line can be used to? |
Guide the equipment around obstacles Hold the equipment away from the pole Stabilize the equipment |
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True or False: When changing an insulator, it may be necessary to cover both the crossarm and the energized phase with protective gear to prevent accidental contact as the phase is moved and secured |
True |
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When a double dead-end crossarm is changed out, a temporary double crossarm is used to? |
Support the conductors normally supported from the permanent crossarms Stabilize the permanent crossarms Rig the hot hoists
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True or False: When deadended conductors are moved to a temporary double crossarm, tension is taken up on each of the conductors to be moved at the same time so that the stress is balanced on both ends of the crossarm. |
False |
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True or False: The job of transferring energized secondary lines from one pole to another requires continuous coordination between crew members in order to move the lines safely. |
True |
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True or False: Ring cutting is the recommended method of skinning the insulation from a conductor. |
False |
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True or False: Ring cutting is the recommended method of skinning the insulation from a conductor. |
False |
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Match the name of the type of conductor in the left-hand column with the abbreviation on the right-hand column. Copper Aluminum Aluminum conductor, steel reinforced All aluminum alloy conductor All aluminum conductor Galvanized steel |
CU AL ACSR AAAC AAC GALV ST
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When wires are prepared for a connection, a copper wire is brushed until it is________ while an aluminum wire is brushed until its_________ |
Answer 1: shiny Answer 2: dull |
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Which of the following are factors that should be considered when selecting a connector to make a service connection? |
Wire type Application Wire size |
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The general rule for placing conductors in a connector when a copper wire and an aluminum wire are being connected is_______over_________ |
Answer 1: aluminum Answer 2: copper |
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Select, in order, the four basic steps for making a service connection. |
Answer 1: Skin the wire (remove the wire’s insulation). Answer 2: Clean the wire (brush with a wire brush). Answer 3: Install the connector Answer 4: Tape or insulate the connection |
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Before a service installation job is begun, an important first step is to |
Look over the job site |
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When service wires are connected, the _______ is always connected first. |
Neutral |
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True or False: For an underground service installation, it is best to connect the service to the meter box terminals before filling in the trench. |
False |
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True or False: When connections are made to an energized pad-mounted transformer, it is a good practice to cover up all terminals except for the terminal being worked on. |
True |
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True or False: Customer backfeed voltage checks are always made at the line terminals and at the neutral terminal. |
False |
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A backfeed test involves making three voltage checks? |
Load terminal to load terminal Neutral terminal to load terminal Neutral terminal to other load terminal |
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Testing for__________ shorts is done by testing for voltage from either of the line terminals to one of the load terminals in the customer’s meter box. |
Phase too ground shorts |
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A _______test should not be made at a customer’s meter box unless the other two tests have been made and any problems found during those tests have been corrected. |
Jumper |
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True or False: When a three-phase service is installed, the neutral is connected after the three phase wires have been connected and the phase sequence has been checked. |
False |
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True or False: When a three-phase service is installed, one of the energized service phase wires is permanently connected, while the other two are temporarily connected to the service entrance phase wires until the phase sequence can be checked. |
True |
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When an existing three-phase service is replaced, a phase wire from the new energized service is matched to the proper phase wire from the existing energized service when a voltage reading between them is ____volts. |
0 |
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After a new three-phase service has been connected in parallel with an old three-phase service, the old service can be disconnected from the circuit. The last service wire to be disconnected is the? |
Neutral |
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What are the three elements of safe rigging practices? |
Plan the job Use the equipment properly Inspect the equipment |
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True or False: When planning a job where the actual weight of the load cannot be accurately determined, it is best to over-rig the job for safety. |
True |
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True or False: Equipment manufacturers often design lifting points into equipment to make it easy to raise or lower the equipment. |
True |
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When inspecting a rope, you should look for |
Excessive fraying or abrasion of interior and exterior strands and fibers. Excessive oil, dirt, or powder inside the strands Evidence that the rope has been exposed to excessive friction or heat. Unnatural bends or kinks in the rope.
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Fiber rope made from manila, sisal, or cotton is generally classified as |
Neutral fiber rope |
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Which of the following are the four characteristics of the fiber rope typically used for rigging. |
dielectric strength flexibility load length resistance to abrasion, chemicals, solvents, moisture and mildew |
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True or False: Any bend in a rope that causes the standing part and the running end to cross over each other is called a bight. |
False |
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True or False: A knot commonly used to attach slings to poles and to join two ropes of the same diameter together is called a square knot. |
True |
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When tying an overhand slip knot, |
Form a bight in the rope; then form a loop in one of the parallel sides; and finally, pass the bight through the loop. |
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Square knots, slip knots, and half hitches are primarily used on ______ loads. |
Light |
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True or False: A sling used to attach a hand line to a pole should be at least the same diameter as the rope used for the hand line. |
True |
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When working on the ground with a handline, you should |
Watch both the hand line and the load for potential problems that could cause accidents. |
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A piece of rope, typically a quarter of an inch in diameter, that is used to attach a crossarm to a hand line is a _______ |
Pigging line |
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Witch of the following are elements common to most hand lines? |
sling length of rope Handling blocks |
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What is the mechanical advantage of a block and tackle that has 3 falls going into the movable block, 3 falls coming out of the moveable block, and 3 sheaves in the fixed block? |
6 |
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The process of threading rope through blocks to form a block and tackle is called |
Reeving |
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When the hook on a block is set in a sling that is at the top of a pole, the hook should go into the sling with its point facing______ |
UP |
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How much input force is necessary to support a 1000 pound load that is connected to a block and tackle with a mechanical advantage of 4? |
250 pounds |
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Which of the following are the basic guidelines that should be followed to ensure safety in meter work? |
Know the requirements for the job. Plan the job carefully. Use the proper work methods. |
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Meter personnel should be able to look at a meter installation and identify the |
Equipment involved Method of meter installation Potential hazards |
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True or False: All meter installations are basically the same. |
False |
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Planning a job involves |
Mentally running through the job steps Making a visual inspection of the job site |
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True or False: The proper attitude is an important part of safety on the job. |
True |
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True or False: To pick up a heavy load, bend at the knees and keep your back straight. |
True |
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True or False: Keeping equipment and work areas neat and orderly is good for morale, but really has no effect on job safety. |
False |
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True or False: If a meter installation is inaccessible or hazardous, meter personnel should correct the situation, complete the job, and then notify the property owner. |
False |
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True or False: Electrical dangers to the human body basically result from either current flow or electrically generated heat. |
True |
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True or False: Current flow can cause a stun, cardiac arrest, or deep electrical burning of tissue or muscle. |
True |
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A______is an injury caused by the heat and ultraviolet light associated with an electrical arc. |
Flash burn |
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True or False: Anyone working around electrical hazards should wear a long-sleeved shirt that has a high artificial fiber content. |
False |
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Meter personnel should begin a meter replacement job by |
Checking the old meter and meter box for signs of physical or electrical hazards Checking the surrounding area for signs of physical hazards
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True or False: After a damaged meter is removed, a voltage check should be made before a new meter is installed. |
True |
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True or False: It is a good practice to inspect rubber gloves after completing a job that required handling sharp objects. |
True |
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Before a new three-phase meter is installed, the main panel___________should be opened to ensure that no load is connected when the meter is installed |
Disconnect switch |
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True or False: Before installing a new three-phase meter, a meter technician should use a voltage tester to check the voltages phase-to-phase and phase-to-ground from each jaw in the meter socket |
True |
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True or False: Obvious rural pole setting locations do not have to be checked for existing underground utilities before a new pole is set. |
False |
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What are methods of digging a hole to set a pole? |
Manual digging tools A portable power digger A digger derrick |
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What are methods of digging a hole to set a pole? |
Manual digging tools A portable power digger A digger derrick |
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In normal soil, the rule of thumb used to determine the depth of a hole needed for a pole is, ______% of the length of the pole, plus ______ |
10% plus 2 |
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True or False: When a hole is dug with a digger derrick, the hole is usually dug in stages so that the auger can be removed from the hole and cleaned periodically. |
True |
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Portable power diggers are often used to dig a hole instead of a digger derrick because |
They can maneuver into areas where a digger derrick will not fit |
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True or False: When a pole is set, it is lifted at its balance point, so that crewmen on the ground can easily swing it into a vertical position. |
False |
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Most modern utility poles are made so that the diameter of the butt end of the pole is ________the diameter of the top of the pole. |
Greater than |
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The tool used to rotate a pole to bring its gain into alignment with other poles is called a |
Can’t hook |
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True or False: Wooden utility poles are commonly used because they are considered to be good insulators |
False |
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To make sure that a pole is plumb, the pole should be checked from at least_______ positions that are________degrees apart |
Answer 1: two Answer 2: 90 |
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True or False: Backfilling a hole is best done in shallow layers, with a couple of inches of dirt added to the hole and thoroughly compressed by tamping before more dirt is added. |
True |
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When a replacement pole is set next to an existing pole supporting energized lines, how close to the old pole should the hole be dug? |
The hole should be as close as possible without disturbing the old pole. |
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To provide a larger obstruction-free area for maneuvering, the energized phases may be moved to_________before the new pole is set. |
New positions |
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True or False: Pike poles or tag lines are often used to prevent poles from swinging sideways as they are raised into position. |
True |
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When rigging from the new pole so that the old pole can be cut into sections and removed, which of the following statements must be considered? |
strain is taken on the rigging to prevent the section being cut from binding against the saw. The cut section will have a tendency to fall against the new pole. The section of pole to be cut is rigged from the new pole so that it will be butt heavy. |
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When rigging from the new pole so that the old pole can be cut into sections and removed, which of the following statements must be considered? |
strain is taken on the rigging to prevent the section being cut from binding against the saw. The cut section will have a tendency to fall against the new pole. The section of pole to be cut is rigged from the new pole so that it will be butt heavy. |
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True or False: A pole jack is used to remove the butt section of a pole from the ground. |
True |
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True or False: A deadman or pole jenny, is a brace used to support a utility pole as it is being raised with pikes. |
True |
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True or False: A “kick plate” is a board placed in the hole to prevent the butt of the utility pole from caving in the dirt as the butt moves down into the hole. |
True |
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True or False: Temporary guys are rarely necessary when replacing a pole under 35 feet tall using the “cut and kick” method of pole setting. |
False |
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The cutting action of a crosscut saw occurs on the______stroke. |
Forward |
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True or False: A knife is commonly used for skinning insulation. |
True |
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What are the three types of handsaws? |
Tree Saw Crosscut Saw Hacksaw |
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The hand tool that is most often used for drilling is a |
Brace and bit |
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The jaws of a ________ tool are designed to make a crimp on a connector. |
Compression |
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What are types of hammers used in distribution work? |
Sledge Hammer Claw Hammer Double-faced Hammer |
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True or False: The smaller the diameter of a screwdriver's handle, the greater its mechanical advantage and its turning force. |
False |
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A _______ is a powered lifting device that is frequently used in distribution work to control heavy loads. |
Capstan |
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True or False: After a power tool is connected to its power source, it is generally a good idea to start up the tool and check its operation before using it on a job. |
True |
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Which of the following is NOT a source of power for hand tools used in distribution work?
Hydraulic system Steam turbine Air compressor |
Steam turbine |
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Distribution system tap connections are sometimes made using powder-actuated tools. The tool is operated by a gas that is formed by firing a charge of _______ |
Gunpowder |
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True or False: A compression tool is similar in appearance to cable cutters, but is designed to compress, or crimp, a connector onto a cable. |
True |
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True or False: The powder-actuated tool used as an example in this section is operated by a gas that is formed by firing a charge of gunpowder |
True |
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What two parts is a typical powder-actuated tool made of? |
Tool head Power unit |
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True or False: A short circuit is a fault that occurs when uninsulated, energized wires cross one another. |
True |
|
General safety procedures that apply to most jobs involve |
Inspecting a job site Following safety procedures Planning out the job Wearing required protective equipment |
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Which of the following is not a characteristic common to fuses, circuit breakers, and reclosers? |
They can automatically close circuits at timed intervals. |
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Circuit breaker contacts ______when a fault is detected |
Open |
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True or False: Isolating a circuit is the same as de-energizing a circuit. |
False |
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Which of the following is not a characteristic common to circuit breakers?
They have some means of extinguishing arcs. They are opened only after a circuit is de-energized. The switch contacts are enclosed in a protective housing. They can be operated under load. |
They are opened only after a circuit is de-energized. |
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Which of the following is not a type of circuit breaker?
A gas circuit breaker A no-load circuit breaker An oil circuit breaker An air circuit breaker |
A no-load circuit breaker |
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True or False: Disconnect switches are designed to isolate circuits; however, some disconnect switches can also be used to de-energize a circuit. |
True |
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True or False: Disconnect switches are designed to isolate circuits; however, some disconnect switches can also be used to de-energize a circuit. |
True |
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A load-break disconnect switch has no arc reducing or extinguishing capability. |
False |
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The only way to be sure a circuit is dead is to |
Test the circuit |
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True or False: A noisy tester detects the presence of voltage in a circuit. |
True |
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Which of the following is not an electrical condition that could cause de-energized lines to become energized?
Electromagnetic grounding Magnetic field coupling Electric field coupling Friction that creates static electricity |
Electromagnetic grounding |
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True or False: When a grounding set is installed, it is important to connect one end of a jumper to ground before connecting the other end to a line, thus maintaining a continuous path to ground throughout the procedure. |
True |
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True or False: A field crew is always responsible for switching, tagging, testing for dead, and grounding a circuit themselves. |
False |
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True or False: A field crew can assume that a circuit has been de-energized before doing a maintenance or repair job. |
False |
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True or False: A field crew can assume that a circuit has been de-energized before doing a maintenance or repair job. |
False |
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Which of the following cannot help a field crew determine that they have found the correct job site?
Inspecting the site for safety hazards A circuit diagram Pole numbers or street names listed in the work order Checking the equipment at the site with that listed on the work order |
Inspecting the site for safety hazards |
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True or False: A digger derrick with the pedestal at the back of the truck and the boom stored over the truck cab is know as a Rearmount. |
True |
|
The hole-boring tool of a digger derrick is called |
Auger |
|
The dump valve is used to |
Temporarliy stop all hydraulic action |
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True or False: The hook radius is the distance from the boom tip sheave straight down to the ground. |
False |
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The _______ is the distance from the boom tip sheave straight down to the ground. |
Sheave height |
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The _______ is the distance from the boom tip sheave straight down to the ground. |
Sheave height |
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What are the three classifications of digger derricks? |
Rearmount Centermount Cornermount |
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True or False: The boom on a digger truck can be raised, lowered and swung in a full circle. |
True |
|
True or False: All augers are designed to do all types of digging.
|
False |
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A ______, located on the pedestal, controls the speed of the ______ which powers the hydraulic system. |
Answer 1: throttle pedal Answer 2: truck's engine |
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A ______ , located on the pedestal, controls the speed of the ______which powers the hydraulic system |
Answer 1: throttle pedal Answer 2: truck's engine |
|
The actual lift capacity of a digger truck depends on three factors; |
the stability of the truck and the surface it is on the structural strength of the derrick the power of the hydraulic system |
|
The actual lift capacity of a digger truck depends on three factors; |
the stability of the truck and the surface it is on the structural strength of the derrick the power of the hydraulic system |
|
Before starting a job that involves the use of a digger derrick, the first step taken by the crew should be to |
Plan the job |
|
True or False: A digger derrick should be positioned so that the hole can be dug off of the back of the truck. |
True |
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True or False: The boom on a digger derrick should be fully extended before the auger is lowered. |
False |
|
Setting a pole requires lifting it at or near its |
Balance point |
|
Before any digging is done, the controls of the digger derrick should be tested to make sure that they are |
Operating correctly |
|
True or False: The hole is typically dug to the necessary depth with no stopping. |
False |
|
True or False: The hole is typically dug to the necessary depth with no stopping. |
True |
|
True or False: When dragging the pole to the hole, it is best to point the boom straight at the pole, and align the boom lengthwise with the pole. |
True |
|
Which of the following are terms for the tool that is attached to the pole prior to lifting? |
Tongs Pole grabbers Straps Slings Cables Chokers |
|
True or False: An “A” base meter has terminals located on the back side of the meter. |
False |
|
True or False: The resistor is the part of a watt-hour meter that introduces a retarding effect on the disk. |
False |
|
Which of the following are the basic parts of a watt-hour meter? |
Stator Rotor assembly, or disk Cover Retarding magnet Register Base |
|
True or False: The basic principles of operation of the electro-mechanical watt-hour meter introduced around 1900 are completely different from those of today’s electro-mechanical meters. |
False |
|
True or False: The interaction of the current and potential coil fluxes and the induced eddy current fluxes in a meter disk produce disk rotation. |
True |
|
Which of the following are types of watt-hour meter bases? |
“S" type "A" base |
|
True or False: The designation of “CL 100” on a meter nameplate indicates that the meter is transformer rated and will have instrument transformers associated with it. |
False |
|
True or False: The voltage rating on a meter name plate indicates the voltage rating of the meter’s potential coil or coils. |
False |
|
True or False: The rating in volts of a meter’s current coils is called its Class |
False |
|
True or False: All poly-phase meters have two or more stators. |
True |
|
When the voltage requirements of a customer exceed the rating of a self-contained meter, which of the following instrument transformers are needed in conjunction with a transformer-rated meter to measure the customer’s loads? |
Current transformers Voltage transformers |
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Which of the following is an example of a self-contained meter class? |
Class 200 |
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True or False: The test switch used in conjunction with a transformer-rated meter is used to de-energize the customer’s loads while the meter is being tested. |
False |
|
True or False: Transformer-rated meters are used when voltage and/or current exceeds the ratings of self-contained meters. |
True |
|
True or False: When a comparison test is made on a watt-hour meter, the currents through the meter, the test standard, and the phantom load are all the same. |
True |
|
As-found accuracy tests on self-contained meters are typically made at what two power levels? |
Light load, or 10% of rated test amps Full load, or rated test amps |
|
Which of the following is used in comparison testing to supply a regulated current during the test? |
A phantom load |
|
|
|
|
What are the typical meter-man responsibilities? |
Testing meter accuracy Handling customer complaints Removing and installing meters |
|
True or False: Since company meter seals that have been tampered with can usually be discovered visually, it is not necessary to pull on a seal to see if it is in its proper condition. |
False |
|
True or False. Atoms contain electrically charged particles. |
True |
|
Electrons have a ______charge |
Negative |
|
What are three characteristics of electrical charges? |
Opposite electrical charges of equal value cancel each other out Opposite electrical charges attract each other Like electrical charges repel each other |
|
What are three characteristics of electrical charges? |
Opposite electrical charges of equal value cancel each other out Opposite electrical charges attract each other Like electrical charges repel each other |
|
What are the basic sources of electricity that can be used to detach electrons from their obits and sustain current? |
Friction Heat Pressure Light Chemical Action Magnetism |
|
What are current, voltage, and resistance measures in? |
Current: Amps Voltage: volts Resistance: ohms |
|
True or False. Insulators offer little opposition to current flow; conductors offer great opposition to current flow. |
False |
|
What are following valid forms of Ohm's Law? |
E=IR R=E/I I=E/R |
|
True or False. A series circuit contains two or more current paths in which the components are connected end to end. |
False |
|
A break in the current path of a _______circuit interrupts the entire circuit. |
Series |
|
Which are true about the behavior of current, voltage, and resistance in a series circuit? |
The amount of current flowing through each component is the same. The sum of the individual source voltages equals the total applied voltage. The sum of the individual resistances equals the total circuit resistance. The total applied voltage is equal to the sum of the voltage drops across the resistors in the circuit. |
|
Which are true about the behavior of current, voltage, and resistance in parallel circuits? |
The total circuit current is equal to the sum of the current flowing through each leg The total circuit resistance is less than the resistance in any single leg The voltage drop across each leg is equal to the source voltage. |
|
Resistors are components that are put into circuits to _________current flow. |
Reduce or apposé |
|
What are the three requirements that must be present in order for induction to occur? |
Conductor Magnetic Field Relative Motion |
|
True or False. In an AC circuit the magnetic field builds up or collapses continually whenever the current is on. |
True |
|
The purpose of the _______in a typical transformer is to concentrate and direct the magnetic field. |
Metal core |
|
True or False. The purpose of a transformer is to increase or decrease voltage. |
True |
|
What is the physical property of all conductors that tends to oppose a change in current flow? |
Inductance |
|
Self-induced voltage always_______a change in current. |
Apposes |
|
True or False: The ability to store electrical energy is called capacitance. |
True |
|
True or False. Removing the voltage source from a capacitor will discharge it. |
False |
|
Primary distribution voltage is applied to a distribution line by a _______ transformer. |
Substation |
|
A distribution system does what? |
Supplies electricity to a consumer Receives electricity at a transmission voltage Is generally considered to begin at a substation |
|
True or False. Capacitors can improve the efficiency of a distribution system. |
True |
|
A transformer is an electrical device that can change the value of |
Voltage |
|
What are the three elements common to most transformers? |
Primary Winding Core Secondary Winding |
|
In a distribution transformer, |
The primary winding receives electricity at a distribution voltage and induces a voltage in the secondary winding at a different value. |
|
True or False. Both subsurface transformers and pad-mounted transformers are used in underground distribution systems. |
True |
|
A voltage regulator does what? |
Maintains distribution voltage within a specified range of values |
|
True or False. On a typical voltage regulator, “load” indicates regulated voltage applied by the regulator to the distribution system. |
True |
|
Capacitors do what? |
Increase the overall efficiency of a distribution system by increasing the amount of usable power that can be supplied to a consumer |
|
True or False. Before any work is done on a capacitor, personnel should follow the proper procedures for discharging the capacitor. |
True |
|
Which type of distribution layout could be used to ensure that critical needs customers, such as hospitals, do not experience an interruption of service? |
Spot network Duplicate supply |
|
True or False. In a typical distribution system, secondary voltage is supplied to a feeder by a substation bus. |
False |
|
In a ______ distribution system layout, the laterals tapped off of a feeder can rejoin the feeder farther down the line. |
Loop |
|
Which of the following is typically used to interrupt the flow of electricity through a distribution line? |
Recloser Circuit breaker |
|
True or False. Sectionalizing is a process of isolating a section of a distribution system, while maintaining service to the majority of customers in the system. |
True |
|
If a fault occurs on a lateral, a _______ may delay closing for a specific amount of time to give a ______ an opportunity to open. |
Answer 1: recloser Answer 2: sectionalizer |
|
True or False. Surge arrestors provide a voltage flow path to ground. |
False |
|
If a fault occurs on a lateral, a circuit breaker may remain _______ for a specific period of time to allow a fuse to open, isolating the faulted lateral. |
Closed |
|
A surge arrestor does what? |
Provides a safe flow path for excessive current flow to ground |
|
True or False. When the polarity of an AC power source changes, the direction of the current it produces also changes. |
True |
|
What is not a requirement for inducing voltage? |
Heat |
|
The number of cycles completed each second by a given AC voltage is called |
Frequency |
|
Effective AC values are equal to _______ multiplied by .707 |
Peak AC Values |
|
True or False. Inductance is a physical property of all AC circuits that opposes any change in current flow. |
True |
|
Inductive reactance is measured in |
Ohms |
|
A conductor that is wound into a coil provides ______ inductive reactance than a straight conductor. |
More |
|
True or False. In a purely inductive circuit, current lags behind voltage. |
True |
|
Capacitance is a physical property of all AC circuits that opposes a change in |
Voltage |
|
The dielectric in a capacitor acts as a(n) _______. |
Insulator |
|
True or False. When a capacitor is charged, electrons flow from one capacitor plate to the other. |
True |
|
In a purely capacitive circuit, current _______ |
Leads |
|
The power actually used to do work in an AC circuit is |
True power |
|
______ power is the only type of power found in a purely inductive circuit or a purely capacitive circuit. |
Reactive |
|
True or False. Apparent power is voltage times current in any circuit. |
True |
|
The ratio of true power to apparent power in an AC circuit is called |
Power Factor |
|
The two basic types of single-phase systems are |
Two-wire systems an three-wire systems |
|
True or False. In a delta-connected three-phase system, the coils (or resistors) are connected end-to-end so that they effectively form a triangle |
True |
|
In a three-phase system, the voltage that is induced in the coils (or applied across the resistors) is the ______ voltage. |
Phase |
|
In a wye-connected three-phase system, the phase ______ times 1.73 equals the line _______. |
Answer 1: voltage Answer 2: voltage |
|
True or False. OSHA regulations require that the critical safety components of mechanical elevating and rotating equipment receive a thorough inspection before use on each shift. |
True |
|
What factors must be considered when setting up a bucket truck at a job site? |
Where to position the bucket truck Traffic Conditions The type of surface that the truck is to be parked on |
|
True or False. Outriggers are often used to provide additional support for a bucket truck when the boom is being used. |
True |
|
Damaged work surfaces are more likely to collapse when the boom on a bucket truck is: |
Extended to one side of the truck |
|
True or False. The first thing to do when reaching a job site is park the bucket truck as close as possible to the actual work area. |
False |
|
The coned-off area of a job site may need to be ______ if the work area is located near hazardous road conditions. |
Extended |
|
If the boom moves outside the coned-off area: |
Flaggers should stop traffic |
|
What should be done to secure a bucket truck before the lift is Operated? |
Apply parking brake Chock wheels Turn on warning flasher |
|
A lineman in a bucket typically wears _______ when working near energized equipment. |
Rubber gloves Rubber sleeves attached lanyard safety harness |
|
The bucket should generally be placed ______ a power line that being worked on. |
Below |
|
True or False. A boom tends to move faster when it is descending, because the hydraulic system has to do less work. |
True |
|
The person in the bucket should maintain full control of the bucket during normal operations. The pedestal controls should only be used during a(n): |
Emergency |
|
True or False. A safety harness is optional and should only be considered when a clear danger of falling exists. |
False |
|
A wooden support that can be placed under the foot of an outrigger to protect the work surface is called a ___________. |
Cribbing block |
|
True or False. Erratic, or jerky, movement of a boom can damage its components. |
True |
|
True or False. Erratic, or jerky, movement of a boom can damage its components. |
True |
|
When a bucket truck is set up in traffic, _______ should be used. |
Traffic cones Cones and signs Flashing truck lights |
|
On a slope, the boom should only be used on the side of the truck that is_______. |
Uphill |
|
True or False. A lineman should never stand on anything in the bucket to extend his reach. |
True |
|
True or False. A lineman should never stand on anything in the bucket to extend his reach. |
True |
|
Electric tools should not be used in a bucket around energized equipment because of the ______ hazard. |
Shock |
|
A lineworker should only enter the bucket when it is in the _______ position or at ______ |
Answer 1: Rest Answer 2: Ground level |
|
“D” size on a body belt refers to the distance from hip bone to hip bone measured around the back, plus one or two inches, depending on manufacturer specifications. |
True |
|
The waist size of a body belt is really the measurement around the body at the |
Hips |
|
To verify the waist size of a body belt, measure from |
the roller on the buckle to the center hole on the tongue. |
|
Ideally, the “D” rings on a body belt should be positioned just inside the prominent bones of the hip. |
False |
|
A safety strap consists of |
an adjustable belt with safety snaps on each end. |
|
When the climbers are put on |
the straps should be snug, but not too tight the pant leg should be pulled up, and excess material should be folded flat against the back of the leg |
|
When gaffs are being sharpened |
a file is used on the flat side only. |
|
The proper technique for using gaffs is to: |
place the gaff next to the pole and step down. support the majority of the climber’s weight with the gaffs. |
|
When stepping up or down, a climber should _____ his foot to position his gaffs for the best support. |
Angle |
|
One leg should be straight, with the knee locked, at all times during a climb. |
True |
|
When the climber needs to determine the proper length of the safety strap to allow him to comfortably climb and position himself on the pole. If the safety strap is of the proper length, he should be able to |
place the elbow of one arm on his stomach and, clinching a fist, brush his knuckles against the pole. maintain tension on the safety and still be able to grasp both sides of the pole.
|
|
A climber (should, or should not) use hardware and components for support during a climb. |
Should not |
|
When ascending past an obstacle on the pole, the climber |
utilizes a second safety lanyard above the obstacle to maintain fall protection. |
|
|
|
|
When performing a climb |
ascend or descend using the same arm and same leg as you climb.It doesn’t matter |
|
Free climbing is only allowed when: |
the employer determines that a fall restraint is infeasible or creates another hazard |
|
As a general rule, a climber should |
inspect his equipment before leaving the ground plan his route up the pole before leaving the ground inspect the pole for hazards before leaving the ground |
|
What kind of climbing belt offers the safest protection and is mandated by OSHA? |
Fall restraint |
|
After a lineman hangs and levels the cross arm, he secures the braces with: |
A lag screw |
|
True or False. OSHA regulations require that the critical safety components of mechanical elevating and rotating equipment receive a thorough inspection before use on each shift. |
True |
|
the two parts on a material handling bucket truck that direct the movement of a load are? |
Jib Wench |
|
True or False. Outriggers are necessary on basic bucket trucks but not on material handling bucket trucks when the boom is being used. |
False |
|
Which of the following is not a characteristic of a typical material handling bucket truck: |
It requires special rigging to lift heavy loads |
|
True or False. Traffic conditions have nothing to do with the safe placement of a material handling bucket truck at a job site near the road. |
False |
|
True or False. The first thing to do when reaching a job site that requires on-road parking, is safely mark off the work zone. |
True |
|
True or False. The fiberglass insert in the lower boom of many material handling bucket trucks helps prevent the truck from accidentally becoming energized. |
True |
|
True or False. The fiberglass insert in the lower boom of many material handling bucket trucks helps prevent the truck from accidentally becoming energized. |
True |
|
A jib helps direct the _____ of a load. |
Positioning |
|
True or False: The jib and the winch on a material handling bucket truck allow the lineworker in the bucket to control the load being raised or lowered. |
True |
|
OSHA regulations require that when working in an energized environment, the lineworker be aware of the minimum ____________ applicable to the voltage levels present. |
Approach distance |
|
Wire holding devices, when attached to a jib, allow the lineworker to easily ______ the conductors for maintenance on insulators or crossarms. |
Raise |
|
True or False: Adjusting the angle and extension of the jib allows a lineworker to bring the load in closer to the pole and helps to maneuver the load around obstacles. |
True |
|
True or False. Lift capacity is usually defined as the least amount of weight that a truck or one of its components can safely support. |
False |
|
The jib on a material handling bucket truck has its lowest lift capacity when it is _________ and in a _______ position. |
Answer 1: extended Answer 2: horizontal |
|
The jib on a material handling bucket truck has its lowest lift capacity when it is _________ and in a _______ position. |
Answer 1: extended Answer 2: horizontal |
|
Which of the following conditions affect truck positioning? |
The position of the boom and the jib The weight of the load Obstacles at the job site |
|
True or False. Before a transformer is lifted, the winch rope or cable must be securely fastened to a properly rated sling rigged to the load. |
True |
|
One way to compensate for deflection is to release a load _______. |
Slowly |
|
One way to compensate for deflection is to release a load _______. |
Slowly |
|
OSHA regulations require that defective rigging equipment shall be ___________ . |
Removed from service |
|
True or False. Even a low current flow through the heart can cause ventricular fibrillation, which, is untreated, could result in cardiac arrest. |
True |
|
Current often flows deep through muscle tissue, where the _______ of the body is ______ than that of the skin surface. |
Answer 1: resistance Answer 2: lower |
|
Name two types of atmospheric hazards covered in this module. |
Insufficient Oxygen Combustible Gases |
|
True or False. Remaining alert and using common sense are two important factors in maintaining job safety. |
True |
|
True or False. Rubber gloves only need to be visually inspected and inflated to check for pinholes once a week. |
False |
|
True or False: Hot line cover gear is the general name for protective devices made of porcelain or glass used to fit over and insulate energized conductors and equipment to prevent accidental contact by crew. |
False |
|
True or False. When the boom of a bucket truck is being maneuvered over an open lane of traffic, it is important to keep the boom as high as possible in order to avoid contact with moving vehicles |
False |
|
True or False. Either cones, barricades, signs, or the flashing lights on a truck can be used to alert motorists when work is being done in a traffic lane of a straight roadway. |
False |
|
Before climbing, a utility pole is inspected for |
Rot Defects Obstacles |
|
During pole climbing, the climber’s gaffs should penetrate the pole at a _____ angle. |
30 |
|
During pole climbing, the climber’s gaffs should penetrate the pole at a _____ angle. |
30 |
|
Why are some signs removed from a pole before climbing? |
The sharp edges of metal signs can present a hazard to the climber if he loses his footing |
|
True or False. When there are two climbers on a pole, the second climber should wait until the first climber has settled into position before moving. |
True |
|
If a crewman in a manhole fails to respond to a crewman above ground, the man above ground should |
Call for help on phone |
|
True or False. When entering a substation, the crew should notify the dispatcher so that someone outside the yard knows that there are crewmen working in the station. |
True |
|
List, in order, the five steps taken to determine that piece of equipment is positively dead safe to work on. |
Answer 1:De-energize Answer 2:Isolate Answer 3:Test for dead Answer 4:Ground Answer 5:Tag out of Service |
|
To prevent shock hazards, a grounding jumper should be connected to the ______ before it is connected to the______ |
Answer 1: station ground Answer 2: electrical equipment |
|
A transmission and distribution system carries electricity from ________ to ______ |
Answer 1: Power Plants Answer 2: Customers |
|
What provide a source of electricity for a transmission and distribution system? |
Power plant |
|
True or False. Load refers to all the devices in an electrical circuit that consume electricity. |
True |
|
_______ can be thought of as a kind of pressure that can cause electricity to flow. |
Voltage |
|
Which of the following statements is wrong? Resistance is the electrical energy consumed in doing work. Power is the electrical energy consumed in performing work. Current flow depends on the amount of resistance in a load. Resistance is a load's opposition to current flow. |
Resistance is the electrical energy consumed in doing work. |
|
Choose the appropriate units of measurement. Voltage Current Resistance Power |
Volts Amps Ohms Watts |
|
True or False. Power plants produce electricity by converting the potential energy in fuel into electrical energy. |
True |
|
True or False. A unit transformer increases voltage before electricity is sent on to the transmission and distribution system. |
True |
|
Which of the following is not descriptive of a typical oil circuit breaker? |
It does not Use high pressure SF6 gas to snuff out arcs |
|
True or False. Switchyards can redirect electricity through alternate flow paths by opening and closing certain circuit breakers and disconnect switches. |
True |
|
True or False. Transmission lines are made up of three major components: conductors, structures, and insulators. |
True |
|
two types of insulators commonly used on transmission lines |
Disk Post |
|
two types of insulators commonly used on transmission lines |
Disk Post |
|
What is not a major components of a typical substation? |
Unit transformer |
|
True or False. Distribution lines carry power from substations to urban and rural areas, where voltage is reduced before the power is delivered to customers. |
True |
|
three principal components that make up a transmission line. |
Conductors Insulators Structures |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
A ______ acts as a filter to prevent incoming communication signals from passing through a substation to other power lines and mixing with other signals. |
Line trap |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
A ______ acts as a filter to prevent incoming communication signals from passing through a substation to other power lines and mixing with other signals. |
Like trap |
|
Which of the following is a good reason for providing power routing alternatives in a switchyard? |
To isolate faults without interrupting service To transfer loads To isolate and disconnect components for maintenance |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
A ______ acts as a filter to prevent incoming communication signals from passing through a substation to other power lines and mixing with other signals. |
Line trap |
|
Which of the following is a good reason for providing power routing alternatives in a switchyard? |
To isolate faults without interrupting service To transfer loads To isolate and disconnect components for maintenance |
|
All of the following types of equipment are typically used in a switchyard except |
Regulation equipment |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
A ______ acts as a filter to prevent incoming communication signals from passing through a substation to other power lines and mixing with other signals. |
Line trap |
|
Which of the following is a good reason for providing power routing alternatives in a switchyard? |
To isolate faults without interrupting service To transfer loads To isolate and disconnect components for maintenance |
|
All of the following types of equipment are typically used in a switchyard except |
Regulation equipment |
|
True or False: The route that power takes through a switchyard is determined by which circuit breakers are open and which are closed. |
True |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
A ______ acts as a filter to prevent incoming communication signals from passing through a substation to other power lines and mixing with other signals. |
Like trap |
|
Which of the following is a good reason for providing power routing alternatives in a switchyard? |
To isolate faults without interrupting service To transfer loads To isolate and disconnect components for maintenance |
|
All of the following types of equipment are typically used in a switchyard except |
Regulation equipment |
|
True or False: The route that power takes through a switchyard is determined by which circuit breakers are open and which are closed. |
True |
|
True or False: One reason for inspecting switchyard control house equipment before inspecting the equipment in the switchyard is that monitoring equipment in the control house can indicate problems in the switchyard that should be approached with caution |
True |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
A ______ acts as a filter to prevent incoming communication signals from passing through a substation to other power lines and mixing with other signals. |
Line trap |
|
Which of the following is a good reason for providing power routing alternatives in a switchyard? |
To isolate faults without interrupting service To transfer loads To isolate and disconnect components for maintenance |
|
All of the following types of equipment are typically used in a switchyard except |
Regulation equipment |
|
True or False: The route that power takes through a switchyard is determined by which circuit breakers are open and which are closed. |
True |
|
True or False: One reason for inspecting switchyard control house equipment before inspecting the equipment in the switchyard is that monitoring equipment in the control house can indicate problems in the switchyard that should be approached with caution |
True |
|
Status ______ are inspected inside switchyard control house while the _______ are inspected outside of the control house. |
Answer 1:Status Indicators Answer 2:Bus Insulators |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
A ______ acts as a filter to prevent incoming communication signals from passing through a substation to other power lines and mixing with other signals. |
Like trap |
|
Which of the following is a good reason for providing power routing alternatives in a switchyard? |
To isolate faults without interrupting service To transfer loads To isolate and disconnect components for maintenance |
|
All of the following types of equipment are typically used in a switchyard except |
Regulation equipment |
|
True or False: The route that power takes through a switchyard is determined by which circuit breakers are open and which are closed. |
True |
|
True or False: One reason for inspecting switchyard control house equipment before inspecting the equipment in the switchyard is that monitoring equipment in the control house can indicate problems in the switchyard that should be approached with caution |
True |
|
Status ______ are inspected inside switchyard control house while the _______ are inspected outside of the control house. |
Answer 1:Status Indicators Answer 2:Bus Insulators |
|
True or False: Circuit breaker maintenance is often scheduled on the basis of how many times the breaker has operated. |
True |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |
|
What is a system that uses transmission lines to connect switchyards of one utility with switchyards of other utilities, allowing utilities to buy power from and sell power to each other. |
Power grid |
|
One of the first steps in the stringing process is to run a rope called a ______ through stringing blocks. |
Pilot line |
|
True or False. OSHA regulations require that when rigging equipment is not in use, it should be removed from the immediate work area. |
True |
|
The primary function of a ______ is to increase voltage for transmission or decrease voltage for distribution. |
Substation |
|
True or False: The primary function of a switchyard is to route electricity through various circuits. |
True |
|
Switchyards typically do not have |
Power transformers |
|
Power transformers typically do not have |
All bushings of the same size |
|
True or False: Energized circuits and connections in a substation or switchyard are normally raised above reach, so workers on the ground are usually safe from electrical hazards. |
True |
|
In a substation or switchyard, multiple circuits are electrically connected by common conductors called |
Buses |
|
A _____ break disconnect should only be opened after the circuit it is in is de-energized. |
Non-load break |
|
True or False: A power line carrier system is a system for sending and receiving communication signals over telephone lines between substations and a control center. |
False |
|
Two or more conductors connected together by spacers to form a single phase of a transmission circuit make up what is called a ______ conductor. |
Bundled |
|
True or False: A microwave system sends and receives information between substations and a control center by radio signals. |
True |
|
A ______ acts as a filter to prevent incoming communication signals from passing through a substation to other power lines and mixing with other signals. |
Like trap |
|
Which of the following is a good reason for providing power routing alternatives in a switchyard? |
To isolate faults without interrupting service To transfer loads To isolate and disconnect components for maintenance |
|
All of the following types of equipment are typically used in a switchyard except |
Regulation equipment |
|
True or False: The route that power takes through a switchyard is determined by which circuit breakers are open and which are closed. |
True |
|
True or False: One reason for inspecting switchyard control house equipment before inspecting the equipment in the switchyard is that monitoring equipment in the control house can indicate problems in the switchyard that should be approached with caution |
True |
|
Status ______ are inspected inside switchyard control house while the _______ are inspected outside of the control house. |
Answer 1:Status Indicators Answer 2:Bus Insulators |
|
True or False: Circuit breaker maintenance is often scheduled on the basis of how many times the breaker has operated. |
True |
|
True or False. Because it uses trapezoidal wire, a smaller-sized compact conductor can often handle the same amount of power as a larger-sized stranded conductor that uses round wire. |
True |
|
The abbreviation used to indicate one thousand circular mils is |
Kc-mills |
|
What two jobs do insulators perform? |
Connect conductors to structures Electrically isolate conductors from other components on the line |
|
True or False. A disc insulator is designed to be mounted horizontally on a pole or crossarm and is primarily used for the lower range of transmission voltages. |
False |
|
Disc insulators may be mounted in the _____ position in locations where clearances are limited. |
V |
|
True or False. Tangent towers usually have insulators that are mounted in the suspension position. |
True |
|
What is a right-of-way? |
A tract of land on which transmission lines are built |
|
True or False. The minimum specified distance between the lowest phase on a structure and the ground is called ground clearance. |
True |