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Which of the following is an accurate statement about luffing jibs? - Answer✅✅It
raises and lowers independent from the boom
What is the weakest quadrant of a boom truck? - Answer✅✅Front
What effect would blocking up the ends of the tracks have on a crane? -
Answer✅✅It would increase capacity over the ends
The tipping axis of a crawler crane is? - Answer✅✅It depends if the idler or
sprocket are offset from track rollers
, According to ASME B30.5 what percentage should not be exceeded on a mobile
crane during a load test? - Answer✅✅100%
From strongest to weakest put the following hitches in order - Answer✅✅Basket,
vertical, choker
Which of the following should synthetic slings not be used around? -
Answer✅✅Acid
How often should you inspect a running rope? - Answer✅✅Daily
The radius on a crane chart refers to? - Answer✅✅Center of rotation to center of
gravity of the load or hook
What percentage is the manufacture rate of capacity of a mobile crane on
outriggers? - Answer✅✅85%
What percentage is the manufacture rated capacity of a rough terrain crane on
rubber? - Answer✅✅75%
What is Lay length? - Answer✅✅The distance required for a strand to make a
complete revolution around the rope
What is one problem lubricating wire rope can cause? - Answer✅✅Obstructed view
when inspecting the rope
What would What would call for a running rope to be taken out of service? -
Answer✅✅Six randomly distributed broken wires and one Lay or three in one
strand and one lay
Which of these is known as a standing rope? - Answer✅✅Pendant line
If you are at a radius below the bold line on a load chart, which does that mean? -
Answer✅✅Tipping, stability
To lift personnel, he must have an anti-two block on the crane? - Answer✅✅True
The personal platform must be proof tested to _________ Of the platforms rated
capacity - Answer✅✅125%
The crane must be D rated ______ To lift personnel - Answer✅✅50%
When lifting personnel, how should the rigging be a attached to the hook? -
Answer✅✅With master link
When using wire rope slings, the eye of the slings shall have? - Answer✅✅Thimbles