Swing Cab TLL Winter Final

NCCCO Telescopic Boom Crane- Swing Cab (TLL) Winter Final Exam Review Questions and Answers 100% Pass Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? - Answer>>The front What is the definition of "operating radius?" - 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? - Answer>>They are based on the stability of the crane In which quadrant are rough terrain crane capacities generally greater? - 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? - Answer>>20% From which two points should the boom be measured? - Answer>>From the boom hinge pins, to the center of the boom tip sheave 1 / 2

What is the preferred method of installing wire rope from a reel onto a hoist drum? - 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? - Answer>>Over the rear According to OSHA, which accessible area of an operating crane must always be barricaded? - Answer>>The swing radius of the rear of the rotating superstructure What is the OSHA regulation governing cranes in construction? - 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? - Answer>>100% Where is the tipping axis of a crawler crane located? - 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? - Answer>>NOT be lifted by crane What determines the amount of deduction required for an erected jib that is not being used? - 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? - Answer>>It increases

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