Unit 4c (Crane Rigging Exercise)
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This quiz is based on the Kiewit Rigging Triangle training module. This should provide a modest challenge to your rigging capabilities. Grab a calculator and some scrap paper. Best of luck! You must complete Unit 4C (Crane Rigging Exercise) with a score of 90% or higher. This will conclude all quizzes in Unit 4.
- 1.
![If you are picking something that would result in a choker angle of 40 degrees, how much of the rated capacity can you use?]( "If you are picking something that would result in a choker angle of 40 degrees, how much of the rated capacity can you use?")
If you are picking something that would result in a choker angle of 40 degrees, how much of the rated capacity can you use?- A.
49%
- B.
62%
- C.
74%
- D.
87%
- 2.
![If your L is 10 feet and your H is 8 feet what is your Load Factor?]( "If your L is 10 feet and your H is 8 feet what is your Load Factor?")
If your L is 10 feet and your H is 8 feet what is your Load Factor?- A.
0.8
- B.
1.25
- C.
1.67
- D.
1.22
- 3.
![What would be the most preferred sling angle?]( "What would be the most preferred sling angle?")
What would be the most preferred sling angle?- A.
65 Degrees
- B.
5 Degrees
- C.
45 Degrees
- D.
30 Degrees
- 4.
![Calculate the load per sling, sling size and shackle size.]( "Calculate the load per sling, sling size and shackle size.")
Calculate the load per sling, sling size and shackle size.- A.
7000, 5/8, 3/4
- B.
8085, 5/8, 3/4
- C.
14000, 5/8, 3/4
- D.
7000, 3/4, 7/8
- E.
8085, 3/4, 7/8
- 5.
![Calculate the load per sling, sling size, and shackle size.]( "Calculate the load per sling, sling size, and shackle size.")
Calculate the load per sling, sling size, and shackle size.- A.
25,000 pounds; 1-1/4" sling; 1-3/8" shackle
- B.
25,000 pounds; 1-3/8" sling; 1-1/2" shackle
- C.
12,500 pounds; 1" sling; 1-1/8" shackle
- D.
12,500 pounds; 7/8" sling; 1" shackle
- 6.
![Calculate the load per sling, sling size and shackle size for A B and C. (Choose the two correct answers.)]( "Calculate the load per sling, sling size and shackle size for A B and C. (Choose the two correct answers.)")
Calculate the load per sling, sling size and shackle size for A B and C. (Choose the two correct answers.)- A.
Side A = 8,484 pounds; 7/8 sling; 1 shackle C = 7/8 shackle
- B.
Side B = 5,000 pounds; 7/8 sling; 1 shackle C = 7/8 shackle
- C.
Side A = 8,484 pounds; 3/4 sling; 7/8 shackle C = 7/8 shackle
- D.
Side B = 5,000 pounds; 3/4 sling; 7/8 shackle C = 7/8 shackle
- 7.
![What is the tension or load going into the slings?]( "What is the tension or load going into the slings?")
What is the tension or load going into the slings?- A.
5,780 Pounds
- B.
5,000 Pounds
- C.
5,465 Pounds
- D.
5,825 Pounds
- 8.
![Calculate the share of the load, sling size, and shackle size for A and B. (Select the 2 correct answers.)]( "Calculate the share of the load, sling size, and shackle size for A and B. (Select the 2 correct answers.)")
Calculate the share of the load, sling size, and shackle size for A and B. (Select the 2 correct answers.)- A.
Side A = 2,800; 5,600; 5/8 sling; 3/4 shackle
- B.
Side A = 7,200; 8,640; 3/4 sling; 7/8 shackle
- C.
Side B = 7,200; 8,640; 3/4 sling; 7/8 shackle
- D.
Side B = 2,800; 5,600; 5/8 sling; 3/4 shackle
- 9.
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- A.
17 feet; 8,460 Pounds; 172-5/8 inches; 133 inches; 30 degree; 13,050 pounds
- B.
17 feet; 8,700 Pounds; 176-5/8 inches; 124 inches; 35 degree; 13,050 pounds
- C.
16 feet; 8,700 Pounds; 176-5/8 inches; 124 inches; 35 degree; 13,050 pounds
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