Advanced Rigger Quiz Questions and Complete Solutions Graded A+
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Course
Ncccer advance rigger
Institution
Ncccer Advance Rigger
What is meant by the term "two blocking"? - Answer: The load block contacts the boom point sheaves.
Lifting 20,000 lbs with a 2-leg bridle sling at a 30°horizontal sling angle, what is the force applied to each leg? - Answer: 20,000 pounds
In multiple crane lifts using an equalizer be...
, What is meant by the term "two blocking"? - Answer: The load block contacts the boom point sheaves.
Lifting 20,000 lbs with a 2-leg bridle sling at a 30°horizontal sling angle, what is the force applied to each
leg? - Answer: 20,000 pounds
In multiple crane lifts using an equalizer beam, the weight of the beam should be considered: - Answer:
Part of the load weight
What is required if there is a deviation from the lift plan? - Answer: A new lift plan
On level ground using skids and rollers, what percent of the weight of the load should yield the required
line pull asa general rule of thumb? - Answer: 5%
All of the following are results of unbalanced reeving of the hook block EXCEPT: - Answer: Wear on the
hook
Before a spreader bar or beams can be used they MUST have been: - Answer: Tested and approved
When materials are being hoisted to an upper level, a tag line is used to: - Answer: Help control the load
Two cranes are lifting 100 tons.If crane A has 40% of the load, how much weight will crane B have on its
hook? - Answer: 120,000 lbs
To CONFIRM the rated capacity of a specific sling, consult the manufacturer's: - Answer: Sling tag
. OSHA regulations require hook replacement if the opening exceeds what percentage of its original
throat opening? - Answer: 15%
At what percentage of increase in length should a chain sling be removed from service? - Answer: 5%
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