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50 Cards in this Set
- Front
- Back
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Which type of sling is appropreate for in high temperatures?
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Chain
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Which of the following synthetic ropes have the lowest safe working load rating?
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Polypropylene
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How would the SWL of a 3 or 4 part bridle sling be calculated?
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Usually the same as a two-part sling
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What is the safety factor of new wire rope used for general rigging?
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Depends on the applications
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Health and Safety on the job is:
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The number one priority
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When using two modified basket hitches in a single hook, the maximum angle separating the two slings must never exceed:
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90 degrees
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What do the terms "regular lay" and "lang lay" refer to?
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Direction the wires are wound, relative to the direction the strands are wound.
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The definition of a regular lay wire rope is
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The wires that make up the strand twist clockwise and the strand is twisted counterclockwise (left
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What lubricant can be used o the load chain of a chain fall?
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Mineral/Machine Oil
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The minimum wraps to be left on any drum according to Alberta Occupational Health and Safety regulations is
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5
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A true basket hitch, with a wire rope sling, has twice the capacity of a vertical hitch if the D/d ratio is _________ and if the wire rope is vertical
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from 20:1 to 40:1
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Which of the following would be considred coarse laid rope: 6 x 37, 6x7, 6x9
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6x7
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Fleet angle for a smooth drum is
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1 1/2 Degrees
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When cribbing a heavy load, what is the rule of thumb for the maximum
height of the cribbing? (Cribbing dunnage all set to the same length). |
The height should not be greater than the length of the dunnage
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What is the rule of thumb for placing the first snatch block away from an air tugger?
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15 drum widths
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If the throat of a hook shows signs of distortion, a safe practice is to
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Take it out of service
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Which style of block is used to acheive a change of direction without having to reeve the wire rope through the block?
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Snatch Block
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The maximum number of parts of line that may be used when reeving fiber rope before friction loss is greater than mechanical advantage is:
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8
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When inspecting any type of block used for rigging purposes, we need to check:
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Pins and axles, rope groove, bushings or bearings and end fittings
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Prior to anchoring an air tugger to a structural column:
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Ensure that an engineer has approved the connection
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When spooling wire off of the top of a drum, if the anchor point is on the left and you are using right regular lay wire rope, how should the wire rope be wound on the drum?
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Over wound from the left side of the drum
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Which type of eye bolt should be used if there is any possibility of angular load
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Shoulder Type
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A shackle is sized by the
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Bow
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The included angle on a shackle bow using two slings should never exceed
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90 Degrees
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Shoulder-less eyebolts should only be used for
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Vertical lift
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There are two types of wire rope clips used in construction
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Fist grip and saddle types
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"Chain falls" and "come-a-longs" safety factor is
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4 to 1
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When operating a crane around new construction, which of the following conditions could be dangerous?
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Outrigger pads set within the 45 degree line from the base of a trench or excavation
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Boom deflection and pendant line stretch will increase
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Long radius
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A sudden start or stop produces a:
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Shock Load
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Excluding site policy, what percent of a crane's rated capacity is classed as a critical lift?
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75%
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Which of the following weather conditions could restrict or completely stop hoisting activities?
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Wind Gusts
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When using hand signals, you must
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Ensure your signals are clearly visible to the operator
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Which of the following factors would most seriously affect the performance of a conventional crawler?
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Wind Velocities
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Every boom section on a conventional with lattice boom must be clearly identified with which of the following?
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Length, Serial #, Weight, Date of Inspection, Model #
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A spool is rigged up to be cut out of a rack. As the cut is finished, the load drops suddenly, causing a condition known as
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Shock Loading
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Basic Type of boom truck
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Articulating boom
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If the hook does not hang dead centre from an extended boom on a boom truck, the problem would likely be
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Truck not level
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To determine the total load weight for a lift it is necessary to include
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Any weight below the center line of the top shaeve
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When rigging up any turntable mounted hoisting device, what is the most important thing to consider during setup?
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Level the Machine
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What is initially required to gain control of the load
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Determine the Center of gravity
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How is a stowed JIB kept in place?
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Pins with retaining clips
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When tower cranes are erected, the bolts are to be used
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It doesn't matter if they are in good condition
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Whenever two or more mcahines are in tight quarters, the operators should
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Be in radio contact with each other
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Tower cranes should not be operated when wind speeds reach
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20-30 mph (30-50 k ph)
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Tower cranes fastened to the outside of a building need to be secured every
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Four Floors
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Limit switch operation in a EOT crane should be checked
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At the begining of each shift
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Before moving a load with the trolley of an overhead crane, an operator should
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Stop the crane and clear the area before proceeding
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Three main objectives of successful rigging are
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Safety, communication and control
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Every removable section on an EOT crane must be clearly identified with which of the following?
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Weight, Serial #, Date of Inspections, Model #
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