NCCCO Rigger 1 Study Questions 100% Correct Answers Verified Latest 2024 Version
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NCCCO Rigger 1 Study Questions |
100% Correct Answers | Verified | Latest
2024 Version
1. A wire rope that is a 6x19 classification could have how many wires per strand? - 15 through 26
wires per strand
2. How often should a synthetic web sling be inspected? - Each day before use
3. Which con...
NCCCO Rigger 1 Study Questions |
100% Correct Answers | Verified | Latest
2024 Version
1. A wire rope that is a 6x19 classification could have how many wires per strand? - ✔✔15 through 26
wires per strand
2. How often should a synthetic web sling be inspected? - ✔✔Each day before use
3. Which considerations should be given to suspend lifting operations with a mobile crane? - ✔✔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? -
✔✔Abrasion
5. Which of the following defects discovered during an inspection would cause for removing a wire rope
sling from service? - ✔✔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? - ✔✔Competent person
7. When the hoist line is not vertical what type of dynamic force is being introduced to the crane? -
✔✔Side pull
8. What is the term used to describe the ultimate or maximum load that a sling fails at ? - ✔✔Breaking
strength
9. A non-shouldered eyebolt is primarily designed for lifting in which plane ? - ✔✔Vertical
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? - ✔✔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? - ✔✔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? - ✔✔A2+B2=C2 look at paper
13. What is the approximate weight of one cubic foot of steel ? - ✔✔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? - ✔✔Alloy steel chain sling
15. Where would you measure to check the diameter of wire rope? - ✔✔Across the crowns
16. How is the working load limit of slings determined? - ✔✔Divide the breaking strength by the design
factor
17. What is the formula used to find volume of a rectangle? - ✔✔Length x height x width
18. The tag on a synthetic web sling shall have what required information on it ? - ✔✔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 ? - ✔✔The leg has been over loaded
20. Using a cheater pipe on a chain hoist come along what will it give you ? - ✔✔More leverage
21. What type of hitches provides maximum contact between the sling and the load? - ✔✔Double wrap
choker/ double wrap basket
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