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Advanced Rigger Exam- 40 Complete Questions and Answers
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Advanced Rigger Exam- 40 Complete Questions and Answers
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Advanced Rigger Exam- 40Complete Questions and Answers
Leverage is defined as? - -the power applied to a lever to cause a load to
move
-A cranes stability is affected by all of the following except: - -centered lift
-The quadrant that is located between the rear outriggers or crawlers in the
rearward direction of travel is known as: - -over-the-rear
-The operational quadrant between the left or right side outriggers is: - -
over the side
-A loads center of gravity in relation to the tipping axis is affected by all of
the following except: - -raising or lowering the load
-Backward stability of a crane is affected by: - -high boom angles and
inclines
-what dynamic occurs when a load is hoisted from a point other than directly
over the load? - -pendulum effect
-the sudden release of a load that causes a rapid change in effective load
weight is called? - -impact loading
-doubling the depth of a cribbing beam increases the WLL by a factor of? - -
four
-a sling angle is considered hazardous if it is less than_______degrees from
horizontal? - -45
-the formula for determining the wll of a bridle hitch is? - -WLL=(W)(H÷L)(2)
-spreader beans are tested at what percent of the rated capacity? - -125
-adjustable lifting beams are limited to loads of less than a hundred times -
-false
-bundles of rebar should be lifted by? - -wire rope slings
-when a bundle of rebar is being lifted with two slings in a choker hitch, the
sling eyes should be threaded in the opposite direction to improve load
stability - -false
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