**NCCCO RIGGER**

**PRACTICE EXAM**

**PRACTICE EXAM**

1. What is the smallest diameter item that can be placed in the eye of a wire rope sling? Double the diameter Equal to the diameter Half the diameter Three times the diameter

2. The formula to figure the angle factor on a sling is expressed by ............? Sling angle factor = L/H Sling angle factor = H/L Sling angle factor = L1/L2 Sling angle factor = L2/L1

3. The formula to figure cubic yards is? L x W x H L x L x L W x H1 x H2 H1 x H2 x H3

4. Given that steel weighs 490 lbs per cubic foot, a 5' x 6' x 6" block of steel weighs? 7,350 lbs 88,200 lbs 51,035 lbs 61,247 lbs

5. What ANSI standard covers Below-the-Hook lifting devices? ANSI B30.5 ANSI B30.1 ANSI B30.20 ANSI B30.9

6. If the opening of a hook is stretched over......... percent or 1/4" if must be replaced. 5 % 10 % 15 % 20 %

7. What is the minimum safety factor used for chains in hoisting applications? 6:1 5:1 4:1 3:1

8. What is the 60 degrees 45 degrees 30 degrees As long as the angle is estimated it is the users responsibility

*for wire rope or chain?***lowest sling angle allowed**
9. The tension on one leg of a two-leg alloy steel chain sling lifting a load of 8.4 tons, with a horizontal angle of 45 degrees is ............? (Use 1.414 angle factor) 4.14 tons 5.94 tons 8.28 tons 11.88 tons

10. The load angle factor for a horizontal angle of 10 degrees is .........? 2.924 5.414 5.747 6.542

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