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NCCCO Rigger 1 Study Questions with Correct Answers 1. A wire rope that is a 6x19 classification could have how many wires per strand? - ANSWER-15 through 26 wires per strand 2. How often should a synthetic web sling be inspected? - ANSWER-Each day before use 3. Which considerations should be ...

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  • November 4, 2024
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  • 2024/2025
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Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024




NCCCO Rigger 1 Study Questions with

Correct Answers


1. A wire rope that is a 6x19 classification could have how many wires per strand? - ANSWER✔✔-15

through 26 wires per strand


2. How often should a synthetic web sling be inspected? - ANSWER✔✔-Each day before use


3. Which considerations should be given to suspend lifting operations with a mobile crane? -

ANSWER✔✔-Winds in excess of 35 mph


4. What is the term that best describes surface wear on a wire rope sling to rubbing or sliding? -

ANSWER✔✔-Abrasion


5. Which of the following defects discovered during an inspection would cause for removing a wire rope

sling from service? - ANSWER✔✔-Ten broken wires in one lay


6. According to OSHA, each day before being used, all rigging hardware and slings shall be inspected for

damage or defects by a? - ANSWER✔✔-Competent person


7. When the hoist line is not vertical what type of dynamic force is being introduced to the crane? -

ANSWER✔✔-Side pull


8. What is the term used to describe the ultimate or maximum load that a sling fails at ? - ANSWER✔✔-

Breaking strength


9. A non-shouldered eyebolt is primarily designed for lifting in which plane ? - ANSWER✔✔-Vertical


Copyright ©Stuvia International BV 2010-2024 Page 1/6

, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024


10. According to ASME B30.9, (Slings) what is the maximum width of an object that can be placed in the

eye of a wire rope sling? - ANSWER✔✔-1/2 the length


11. What is the term used to describe a sudden or unplanned loading of the crane when raising or

lowering a load that will increase the stress on rigging and the load? - ANSWER✔✔-Shock loading


12. What formula is used to determine the sling length when you only know the hook height and the

distance from the center of gravity to the pick point? - ANSWER✔✔-A2+B2=C2 look at paper


13. What is the approximate weight of one cubic foot of steel ? - ANSWER✔✔-480 pounds (lbs)


14. Which type of sling is required to have permanent affixed identification tag stating size, grade, rated

capacity for hitch type that can be used? - ANSWER✔✔-Alloy steel chain sling


15. Where would you measure to check the diameter of wire rope? - ANSWER✔✔-Across the crowns


16. How is the working load limit of slings determined? - ANSWER✔✔-Divide the breaking strength by

the design factor


17. What is the formula used to find volume of a rectangle? - ANSWER✔✔-Length x height x width


18. The tag on a synthetic web sling shall have what required information on it ? - ANSWER✔✔-Name of

manufacturer


Rated load for each hitch type


and type of material


19. One leg of a four leg alloy steel chain sling is longer than the other three; this is possible indication of

what type of damage ? - ANSWER✔✔-The leg has been over loaded


20. Using a cheater pipe on a chain hoist come along what will it give you ? - ANSWER✔✔-More leverage

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