COMPLETE QUESTIONS AND ANSWERS
GRADED A+
◉If a crane is not set-up level and the operator swings a load from
the high side to the low side, the load radius will:. Answer: increase
◉Most crane manufacturers reduce load capacity for duty-cycle
operations because:. Answer: Side loading forces may occur
◉On who's recommendation should a preventative maintenance
schedule be set up. Answer: Crane manufacturer
◉What is the standard rope used on most cranes. Answer: Right
regular lay
◉The proper way to calibrate boom angle indicator is. Answer:
Boom up or down so the boom is horizontal and level than set the
indicator at 0 degrees
, ◉Backward stability of a mobile crane is tested in which
configuration listed below?. Answer: Basic boom at maximum angle
with no load
◉What is the maximum number of broken wires acceptable before
replacement on a standing wire rope. Answer: 2
◉What is the minimum pitch diameter for load hoisting sheaves.
Answer: Not less than 18 times rope diameter
◉What is the minimum pitch diameter for boom hoisting sheaves.
Answer: Not less than 15 times rope diameter
◉What is the minimum pitch diameter for load block sheaves.
Answer: Not less than 16 times rope diameter
◉LMI shall be installed on cranes with lifting capacities of. Answer:
3 tons and above
◉What is the maximum advisable wind speed for crane operation.
Answer: 20mph
◉Test loads shall not exceed ___ of manufacturers load ratings..
Answer: 110%