NCCCO Rigger 1 Study Questions With Real Answers Rated A+
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Course
NCCCO Rigger 1 Study
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NCCCO Rigger 1 Study
1. A wire rope that is a 6x19 classification could have how many wires per strand? - CORRECT ANSWER-15 through 26 wires per strand
2. How often should a synthetic web sling be inspected? - CORRECT ANSWER-Each day before use
3. Which considerations should be given to suspend lifting operations...
NCCCO Rigger 1 Study Questions With
Real Answers Rated A+
1. A wire rope that is a 6x19 classification could have how many wires per strand? -
CORRECT ANSWER-15 through 26 wires per strand
2. How often should a synthetic web sling be inspected? - CORRECT ANSWER-Each
day before use
3. Which considerations should be given to suspend lifting operations with a mobile
crane? - CORRECT 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? - CORRECT ANSWER-Abrasion
5. Which of the following defects discovered during an inspection would cause for
removing a wire rope sling from service? - CORRECT 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? - CORRECT ANSWER-Competent
person
7. When the hoist line is not vertical what type of dynamic force is being introduced to
the crane? - CORRECT ANSWER-Side pull
8. What is the term used to describe the ultimate or maximum load that a sling fails at ?
- CORRECT ANSWER-Breaking strength
9. A non-shouldered eyebolt is primarily designed for lifting in which plane ? -
CORRECT ANSWER-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? - CORRECT 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? -
CORRECT 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? - CORRECT
ANSWER-A2+B2=C2 look at paper
13. What is the approximate weight of one cubic foot of steel ? - CORRECT 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? - CORRECT ANSWER-Alloy
steel chain sling
15. Where would you measure to check the diameter of wire rope? - CORRECT
ANSWER-Across the crowns
16. How is the working load limit of slings determined? - CORRECT ANSWER-Divide
the breaking strength by the design factor
17. What is the formula used to find volume of a rectangle? - CORRECT ANSWER-
Length x height x width
18. The tag on a synthetic web sling shall have what required information on it ? -
CORRECT ANSWER-Name of manufacturer
Rated load for each hitch type
and type of material
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