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Among the configurations of a crane are the following: A. reeving, boom
length, counterweight, on outriggers, on rubbers, extensions or jibs stowed or mounted, offsets, wire rope type, or construction.rigging, line pull, hoist drum speeds, and wire rope size are all examples of B.
LMI, axle weights, load tables, and center of gravity are all examples of C.drum rotation indication, anti-two block, axle lockouts, and positive house lock are all included in the fifth category. - The answer is A
What factors does the operator consider when selecting the rope that the manufacturer recommends for the crane?
- count the sheaves in the boom tip divide the potential parts into the crane's
capacity, and then determine the appropriate care. B. read the load chart or operator manual provided by the manufacturer. C. measure the rope and determine the capacity according to size. D. measure the wire rope and sheave groove to ensure that you are using the appropriate rope for the crane.
ANSWER B
When it comes to pendants, what is the primary function of mid-point suspensions?To alleviate the strain that is being placed on the bottom when it is being elevated, and to absorb the shock that is associated with dynamic loading,
- to strengthen the boom's structural integrity D. to increase the tipping
capacities - The answer is A
On a crane, the primary function of a gantry or mast is to accomplish the
following: A. to reduce the number of components of the boom hoist line that
are located on the block; B. to increase the speed of the boom hoist; C. to increase the leverage that the crane has on the boom; and D. to reduce the speed of the boom hoist. - THE ANSWER C
When utilizing a mobile crane on a barge, the load capacity chart of the crane must be replaced with a duty cycle chart to comply with the following
requirements:
- a list chart was substituted for it
- reduced to fifty percent
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de-rated to sixty percent - The correct answer is B
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