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Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? - ANS The front

What is the definition of "operating radius?" - ANS The distance from the center of rotation of the crane to the center of gravity of the load

What applies to the capacities below the bold line shown on a load chart? - ANS They are based on the stability of the crane

In which quadrant are rough terrain crane capacities generally greater? - ANS Over the front

What percentage do most manufacturers requires a crane's load chart capacity to be reduced by for duty cycle operations - such as high-volume concrete placement? - ANS 20%

From which two points should the boom be measured? - ANS From the boom hinge pins, to the center of the boom tip sheave

What is the preferred method of installing wire rope from a reel onto a hoist drum? - ANS Running the rope from the top of the reel, to the top of the drum.

Over which quadrant are truck crane capacities usually greater? - ANS Over the rear

NCCCO FINAL TEST EXAM

QUESTIONS AND ANSWERS 1 / 2

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According to OSHA, which accessible area of an operating crane must always be barricaded? - ANS The swing radius of the rear of the rotating superstructure

What is the OSHA regulation governing cranes in construction? - ANS 1926.1400

According to ASME, what percentage of the manufacturer's crane rating must not be exceeded if a load test is done on a repaired crane? - ANS 100%

Where is the tipping axis of a crawler crane located? - ANS It depends if the idler or sprocket are in line or offset from the track rollers

What should be done with materials placed under overhead energized power lines? - ANS NOT be lifted by crane

What determines the amount of deduction required for an erected jib that is not being used? - ANS The effective weight of the jib

What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground? - ANS It increases

How should the wheels of a crane be positioned when it is set up for working on outriggers? - ANS Just high enough off the ground to relieve the tires of crane weight

Where is the tipping axis of a crawler crane located? - ANS It depends if the idler or sprocket are in line or offset from the track rollers

Where are the Standard Method hand signals found? - ANS OSHA Subpart CC

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