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Which of the following is an accurate statement about luffing jibs?
It raises and lowers independent from the boom
What is the weakest quadrant of a boom truck?
Front
What effect would be blocking up the ends of the tracks have on a
crane?
It would increase capacity over the ends
The tipping axis of a crawler crane is?
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?
100%
From strongest to weakest put the following hitches in order
Basket, vertical, choker
Which of the following should synthetic slings not be used around?
,Acid
How often should you inspect a running rope?
Daily
The radius on a crane chart refers to?
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?
85%
What percentage is the manufacture rated capacity of a rough terrain
crane on rubber?
75%
What is Lay length?
The distance required for a strand to make a complete revolution
around the rope
What is one problem lubricating wire rope can cause?
Obstructed view when inspecting the rope
What would What would call for a running rope to be taken out of
service?
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?
Pendant line
If you are at a radius below the bold line on a load chart, which does
that mean?
Tipping, stability
To lift personnel, he must have an anti-two block on the crane?
True
, The personal platform must be proof tested to _________ of the
platforms rated capacity
125%
The crane must be D rated ______ to lift personnel
50%
When lifting personnel, how should the rigging be an attached to the
hook?
With master link
When using wire rope slings, the eye of the slings shall have?
Thimbles
The crane operator should respond to the stop signal from anyone
True
On a rough terrain crane what is the strongest quadrant?
Front
If an operator does not boom up to allow for a boom deflection, the
load will?
Move away from the Crane
Where should the boom be positioned when beginning a lift?
Directly over the center of gravity of the load
A crane should always be barricaded within?
The swing radius of the rear of the rotation superstructure
counterweight
The crane must have a ______ inspection performed both monthly
and yearly. This information must be documented by the employer
that conducts the inspection.
Periodic
Slings should always be marked with a capacity rate in tag.
True