Colorado Crane Operator School
NCCCO - National Commission for the Certification of
Crane Operators
NCCCO Articulating Crane Operator Certification Exam
Examination
180 minutes
Instructions:
1. Read each question carefully.
2. Answer all questions.
3. Use the provided answer sheet to mark your responses.
4. Ensure all answers are final before submitting the exam.
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7. This is Exam which will assess your knowledge on the course Learning
Resources.
Good Luck!
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NCCCO - National Commission for the Certification of
Crane Operators 2024-2025
NCCCO Articulating Crane Exam Review Reference
Manual Questions and Answers | 100% Pass
Guaranteed | Graded A+ |
Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -
What is is competent person? - =Answer>> Person
capable of identifying existing and predictable hazards
in surrounding work conditions. Takes corrective
measures to eliminate them
What is a qualified person? - =Answer>> Person who
holds a degree, certificate, or professional standing by
extensive knowledge, training, and experience has
successfully demonstrated his ability to solve or resolve
problem relating to the subject matter.
What is a load radius (ABC)? - =Answer>> The
horizontal distance from the center line of the crane's
rotation to the center of gravity of the load.
What is a load radius (ABL)? - =Answer>> The
horizontal distance from the center of the crane's
rotation to the center of the rotator
You should make sure the load is properly seated on
what part of the hook before attempting to lift? -
=Answer>> "bowl-saddle" or base of the hook
At what point should you take the hook out of service? -
=Answer>> Distortion aka bending and twisting.
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HOOK INSPECTION: an increase in throat opening more
than __ an inch means take it out of service. -
=Answer>> 1/4 an inch
NOTE: when multiple slings are used, they should be
attached to the bow of the shackle and the hook to a
shackle pin. - =Answer>> this was just a note, no
question.
What is the center of gravity? - =Answer>> is the
central point at which the load weight would be evenly
distributed to any side, aka balance point. LOAD
SHOULD BE RIGGED OVER THE CENTER OF GRAVITY.
When should you take wire rope sling out of service? -
=Answer>> 1) broken wire (5 broken wire in 1 strand
OR 10 broken ires among all strands in 1 rope lay)
2) Metal loss (5% of wires original diameter)
3)Distortion ( wire is crushed or kinked)
4) Heat Damage (wire shows weld marks or burned)
What makes a good softener (rigging related)? -
=Answer>> 2 half pieces of pipe
When should you take a synthetic sling out of service? -
=Answer>> Acid/ caustic burns
What grade does chains and slings need to be? -
=Answer>> Grade 8 or 10 OR Grade 80 or 100
What is chains safety rating? - =Answer>> 4 to 1
safety
Whats best or strongest type of hitching to worst type?
- =Answer>> Vertical (100), Basket (200%), Choker
(75%)
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