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142 Cards in this Set

  • Front
  • Back

The grade of steel most commonly used in wire rope is?

Improved plow steel

A grouping of round or shaped wires helically laid around a core is called?

A strand

Typical strand grades are high strength, common, seimens-martin and?

Extra-high strength

Under normal working conditions the___________ provides support for the stands in a wire rope.

Core

What type of lay is indicated when the strands are wrapped around the core in a clockwise direction?

Right lay

If the individual wires of each strand run parallel to the direction of the run of the rope, the rope is classified as__________.

Regular lay

If a rope is classified as 6x19 seale IWRC, the 6 tells you __________.

How many strands are in the rope.

A crane transmits its power to the wire rope through the ________.

Drum

In identifying a wire rope, the following characteristics are used: length, finish, lay, grade, core type, whether it is preformed, and the ________.

Diameter

If a rope is identified as 1,400 ft 1/2" 6x37 WS pref RRL EIPS FC, the core of the rope is indicated by the letters ___________.

FC

To prepare the end of a rope for reeving,__________ can be applied.

Seizing

A wedge socket has an effective CT of 80% and the nominal breaking strength of the rope is 10,000 pounds. The failure point of the wire rope assembly is ________ pounds.

8000

The lowest effeciency rating of a wire rope with a loop or thimble mechanical splice is ________ percent.

100

Wire rope clips have an effeciency of _________ percent.

80

The type of socket in which the shank is pressed or crimped to the wire rope is known as a ___________ socket.

Swaged

In a poured socket, the rope can be secured to the socket by epoxy resin or molten _______.

Zinc

When using a wedge socket, the dead end of the rope should be secured to the ________.

Wedge

When rigging a load, the center of gravity must be ________ the hook.

Below

When personnel are being lifted in a manbasket, the total weight of the load, basket, and rigging may not exceed _________ percent of the Crane's rated load.

50

Standardized hand signals for mobile cranes have been developed by _____________.

ANSI

If a malfunction occurs during operations, the first thing to do is_______.

Lower the load if possible.

Lowering a load just above a landing zone, then placing cribbing and blocking, is considered ___________.

Dangerous

When blocking a load after the load is set, take the load stress off the sling ___________.

After the blocking is set and secured

The OSHA standard governing mobile cranes is ________.

1926.1400

A competent signal person must be stationed at all times whenever a crane is working within ________ of an energized power line.

A boom's length

The minimum safe distance from a power line of over 250,000 volts is __________ feet.

20

The first response to a fire is to __________.

Cease crane operations

A sudden loss of crane load may cause a ___________.

Whiplash effect

Cold weather exposure symptoms include all of the following except: shivering, numbness, hyperactivity, or weak muscles.

Hyperactivity

Symptoms associated with over heating include all of the following except: pale clammy skin, cramps, headache and nausea, or gray, tingling skin.

Gray tingling skin.

When driving mobile cranes from one site to another, you should _______.

Drive with your lights on

When driving a mobile crane, signal a reverse move with ___________ horn blasts.

3

The most important rigging precaution is determining the __________ of all loads before attempting to lift them.

Weight

Information on startup checks and inspection guidelines for specific mobile cranes is found in __________.

The manufacturer's manuals

Hoisting or rigging operations must be halted when the temperature is __________.

Low enough that the hoist or crane steel structures could fracture upon shock or impact

Rapid swinging of suspended loads subjects the equipment to_________, which can cause a collapse.

Additional side loading

If a crane with an internal combustion engine is used in an enclosed space, OSHA requires sit management ____________.

Test for levels of toxic fumes

Tag lines are attached after the rigger verifies that _______.

The load is balanced

A Crane's ___________ must be barricaded so that employees don't get hit.

Tail swing radius

If a crane or load comes in contact with power lines, the crane operator should ___________.

Stay in the cab of the crane if possible

If leaks are seen at hoses, pipes, or fittings in a hydraulic crane, the crane operator must _____________.

Lower the load to the ground and secure the crane until the leaks are checked.

When filling a hydraulic reservoir tank, make sure the tank is depressurized to prevent ______________.

Hot oils from spraying out.

What information does the anemometer provide?

Wind speed

The throttle lock _______________.

Gives the operator the ability to lock in a specific engine speed for the duration of the operation.

The load moment indicator (LMI) could be used to __________.

Reconstruct a crane accident/incident

When using two joystick controls, it is possible to ____________.

Control several functions

A load moment indicator (LMI) is a ___________ device.

Computer

The superstructure angle/level sensor will ensure that the crane is operated within ________ percent of level.

1.0

The selected controls lockout system ___________.

Prevents the operator from using certain controls during a critical life situation.

The LMI computer calculates the load radius and boom tip height by using the trigonometric functions _________ and ____________.

Cosine;Sine

Which load moment indicator (LMI) input will be affected when the crane is not positioned properly?

Superstructure angle/level sensor

What load moment indicator input senses the difference between the horizontal position of the crane superstructure and the vertical position of the main boom?

Boom angle sensor

An operator aid that is mandatory on new cranes is the _________.

Anti-two-block warning device

The hoist drum rotation indicator is a __________ indicating device.

Mechanical

The purpose of the load moment indicator is to provide the operator with ____________.

Information on the status of the crane with respect to lifting the load.

The result of low engine speed is ____________.

Poor control of crane functions

A transducer is _____________.

A device used to convert one form of energy to another.

The load moment indicator detects the position of the outriggers by sensing the position of either the ____________.

Outrigger hydraulic cylinder of the outrigger support locking pins

Which of the following operator aids is associated with the load moment indicator? Load indicator, throttle lock, drum hoist rotation indicator, or selected controls lockout system.

Selected controls lockout system

Which of the following sensors is associated with an input to the LMI? Axle lockout override switch position sensor, tire pressure sensor, jib angle sensor, or engine distress sensor.

Jib angle sensor

Which of the following is independent of the LMI? boom position, throttle lock, counterweight sensor or load radius.

Throttle lock

The LMI calculates the boom tip height by multiplying the sine of the ___________.

Boom angle

A sensor input that can be optional for an LMI system is a ___________ sensor.

Jib angle

Which device can be used to to determine boom length?

Pressure transducer

Which LMI input, if installed, is directly related to the weight indicator in for determining crane capacity?

Counterweight sensor

A sense of touch is required when using a ___________.

Hoist drum rotation indicator

When threading a wedge socket, the live section of the rope should be aligned with the center line of the ____________.

Pin

When mounting U-bolts, the saddle should be positioned so that the saddle ____________ the live section of the rope.

Is always on

A written, dated and signed inspection report must be prepared _________.

Monthly

A sudden stop when lifting or lowering loads can cause _________ of the wire rope.

Birdcaging

A rope should be replaced if two randomly broken wires are found within an area of __________ rope diameters.

Six

Pitting on a wire rope is usually a sign of ____________.

Internal corrosion

Block twisting can be reduced by ____________.

Using larger sheaves

Worn bearings on a sheave can cause __________, which will accelerate wear on a wire rope.

Significant vibration

If flanges on a sheave become damaged, the can cause ____________.

The wire rope to jump out of the groove, resulting in damage to the rope.

The D/d ratio measures between the rope diameter and the ___________ diameter of the sheave.

Pitch

A long range inspection and maintenance program should include __________.

Accurately date records

The number of time that the wire rope passes through the block, leaving a span of wire from one sheave, is know as the _________.

Part of a line

The nominal breaking strength of the wire rope divided by the safety factor equals the ___________.

Allowed weight for a single line pull

What is the safety factor for rotation-resistant rope?

5.0

The safety factor for live or running rope for supporting loads is __________.

3.5

Given a load of 32,000 pounds and a wire rope that has a maximum allowable line pull of 9000 pounds __________ parts of line are required to safely lift the load.

4

The preferred direction for removing a wire rope from a storage reel to a drum is from the __________ of the reel to the _________ of the drum.

Top;top

Technically, the site condition and setup for a crane is the responsibility of the ______________.

Employers and owners

In a complex site, structural engineers, geo-technical engineers, riggers, and crane manufacturer representatives may all need to be involved in______________.

Site analysis

The combination of ___________ can severely damage the suspension of the crane.

Rough roads and crane weight

When determining whether or not there is adequate access, you must consider the level, grade, and __________ of the roadways.

Compaction

When setting up a lattice boom crane, one consideration is having enough space ____________.

To fully extend the boom on the ground

A crane must be set up within __________ percent of level; this means the slope of the ground cannot exceed one foot for every __________ feet.

1;100

When the operator has any doubt about the compaction of the soil, ___________ should be used.

Matting

If outriggers are used, the __________ must be securely fastened to the outriggers.

Float pods

How often must standby cranes be inspected?

Semi-anually

A crane that has been idle for four months must be given an inspection conforming to the requirements of a ________ inspection.

Frequent

When two cranes are operating near each other, it is important that the operator's have ___________.

Eye contact with each other

Law enforcement officers are sometimes used during the lift operations to ____________.

Provide traffic control when a crane is operated from a public thoroughfare

When a crane is used to transport a load to another location, the ____________ should ensure that the path the crane will follow is clear of any hazards.

Signal person

During lifting operations, what is the minimum clearance from overhead power lines rated at 90kV?

15

The minimum required clearance from overhead power lines rated at 850kV for a crane in transit is _________ feet.

20

The safety Manager tells you to review the safety procedure for a crane you will operate for the first time. These procedures are located in the ___________.

Manufacturer's operating manual

Extend arm with closed fist. Extend index finger.

Swing

Extend arms in front of body, palms up, fist closed, and extend thumbs out to the sides.

Extend boom

Extend arm, palm down and hold. Move hand and forearm in horizontal chopping motion.

Stop

A common device found in cranes that take various signals as input and compares them to a defined set of parameters based on the machine's load chart and gives the operator visual and audible feedback is known as ___________.

Load moment indicator (LMI)

Two-blocking occurs when the _________.

Hook block or headache block makes contact with each other

In an emergency, the selected controls lockout system will _________.

Prevent the operator from worsening the situation

An input device called a cable reel is part of the _________.

Boom length sensor

The controls for hoisting the load, hoisting the boom, swinging the boom and telescoping the boom must have a means for __________ without the use of positive latches.

Holding them in nuetral

The travel distance on foot pedals may not be more than _________ inches

10

The force on foot pedals may not be more than ________ pounds

50

When you are starting to lift you notice that the gauges are showing n incorrect reading. You should _________.

Refuse to lift and contact your supervisor

Lifting a load that exceeds the limits on the load chart is ___________.

Allowed for test purposes only

When operating a crane, bring the hook over the load gently to ________.

Minimize swinging

When the crane is shut down and the boom lowered to a maximum of 60 degrees, the crane should be set so that the boom is __________.

Pointing directly into or away from the wind

Performing a post operational inspection is important because __________.

Lifting components are subjected to stress and wear during every lift

Draining any accumulated water and sludge from the air reservoirs is part of a __________.

Post-operational inspection.

Clearance requirements for overhead power lines.

OSHA

Total weight of the crane and ground bearing pressures on tracks and outriggers.

Manufacturer's operating manual

The frequency of a periodic inspection.

OSHA

OSHA requires that a hook be replaced if it's body has been twisted __________ degrees or more from its original plane.

10

When using a shackle with a hook, the shackle body should be hung on the hook. True or false.

False

Shoulder less eyebolts can be used to make _________ of a load.

Vertical lifting pulls only

The safe working load of a hook-end turnbuckle is great than comparably sized eye and eye turnbuckles. True or false.

False

A beam clamp should be replaced if its jaws have been opened more than _________ percent of its normal opening.

15

The strength factor of wire ropes used for general rigging and hoisting (without personnel) must include a safety factor of at least___________.

5 to 1

For general hoisting purposes, most wire ropes are the _________ type.

Right lay-regular lay

One of the fastest ways to lubricate wire rope is to move it through a pan of ____________.

Heated oil

A new rope should be used for about __________ without a live load to make sure it is compatible with the sheaves and drum of a rigging configuration.

1 hour

If a single wire in a 6 x 19 wire rope sling breaks, the sling loses about ________ percent of its strength.

1

When the eyes of a synthetic web sling are seen at right angles to the plane of the sling body, the sling is called a ___________ sling.

Twisted eye

When two slings positioned at a sling angle of 60 degrees are being used to lift a 1,000- pound load, what is the tension on each sling? Assume a single angle load factor of 1.155

577.5 pounds

Chain slings are normally used for ____________.

Lifting rough castings

Chain should be destroyed after being annealed _________ times.

6

A ____________ rope alternates large and small wires to combine flexibility with abrasion resistance.

Warrington

A partial kink in a rope is known as a ___________.

Dog-leg

A thorough inspection of all wire ropes in use should be made at least once a __________.

Month

The ___________ sling is especially well suited for basket hitches where sharp bends are encountered.

Braided

The ___________ sling is used to prevent marring or scratching of polished surfaces.

Synthetic web

Optimum sling angles fall between ____________ degrees to horizontal.

60 and 45

A wire rope sling should be discarded if wear exceeds _________ of the original rope diameter.

1/3

A metal mesh sling should be discarded if abrasion has caused a ___________ percent of wire diameter.

25

A natural fiber or synthetic rope line used to control the swinging of the load in hoisting activities is a __________.

Tag line

Which OSHA regulation governs the lifting of personnel?

OSHA 1926.1431