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NCCCO FINAL TEST ( / )
QUESTIONS WITH CORRECT ANSWERS
RATED A+
Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? - CORRECT ANSWER -The front
What is the definition of "operating radius?" - CORRECT ANSWER -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? - CORRECT ANSWER - They are based on the stability of the crane
In which quadrant are rough terrain crane capacities generally greater? - CORRECT ANSWER - 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? - CORRECT ANSWER - 20%
From which two points should the boom be measured? - CORRECT ANSWER -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? - CORRECT ANSWER -Running the rope from the top of the reel, to the top of the drum.
Over which quadrant are truck crane capacities usually greater? - CORRECT ANSWER -Over the rear 1 / 2
According to OSHA, which accessible area of an operating crane must always be barricaded? - CORRECT ANSWER -The swing radius of the rear of the rotating superstructure
What is the OSHA regulation governing cranes in construction? - CORRECT ANSWER -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? - CORRECT ANSWER -100%
Where is the tipping axis of a crawler crane located? - CORRECT ANSWER -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? - CORRECT ANSWER -NOT be lifted by crane
What determines the amount of deduction required for an erected jib that is not being used? - CORRECT ANSWER -The effective weight of the jib
What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground? - CORRECT ANSWER -It increases
How should the wheels of a crane be positioned when it is set up for working on outriggers? - CORRECT ANSWER -Just high enough off the ground to relieve the tires of crane weight
Where is the tipping axis of a crawler crane located? - CORRECT ANSWER -It depends if the idler or sprocket are in line or offset from the track rollers
Where are the Standard Method hand signals found? - CORRECT ANSWER -OSHA Subpart CC
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