Examination
180 minutes
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2. Answer all questions.
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NCCCO - National Commission for the Certification of
Crane Operators 2024-2025
NCCCO Digger Derrick - Safety Exam Review Questions
and Answers | 100% Pass Guaranteed | Graded A+ |
Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -
What kind of shackle is used for attaching and joining
hardware and must never be used for rigging -
=Answer>> Material shackle
What kind of shackle is used to join slings provide
effective way of choking slings and provides a great
attachment point for rigging purposes - =Answer>>
Rigging shackles
What is the proper way to rig a rigging shackle -
=Answer>> Always rig the eye end of the sling to the
shackle pin and the running end through the shackle
body
When a load is suspended by a vertical sling
configuration... - =Answer>> The sling tension is
equal to the weight of the load
As the sling angle decreases what happens to the sling
tension - =Answer>> It increases
How do you calculate the working load limit -
=Answer>> Catalog breaking strength divided by 5
What is the formula for sling tension - =Answer>>
Sling tension = sling length/sling height X weight/# of
slings
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