Rigging Quiz
1. Wire rope slings must be removed from service if they have kinks. True__, False__
2. Chain slings must be removed from service if they have excessive wear. True__, False__
3. The eyes of wire ropes may be formed with wire rope clips. True__, False__
4. Rigging equipment should be inspected for defects by a competent person: 1) prior to use on each shift___, 2) once each month___, 3) once each year___
5. Rigging equipment is damaged if it is overloaded. True__, False__
6. Eyes in slings may be formed by knots in the rope. True__, False__
7. All chains and slings should be marked as to their capacities, proof tested and marked, or discarded. True__, False__
8. A person making a heavy lift should consult a rigging chart. True__, False__
9. It is OK to walk under a load if the rigging equipment has been inspected. True__, False__
10. A deformed rigging fitting should be removed from service. True__, False__
11. Any hardened bolt can be used to pin a shackle. True__, False__
12. Allowable wear to a shackle before replacement should be less than a)___5 %, b)___10%, c)___15 %, d)___20%, or e)___25% of any sectional dimension.
13. The following are reasons for removing a fitting from service: a)___a sharp surface nick, b)___a surface gouge, c)___a crack.
14. A lay in a wire rope is equal to one complete revolution of a strand. True__, False__
15. Two broken wires within one wire rope diameter of a fitting is cause for removal from service. True__, False__
16. Wire ropes should be removed from service if: a)___ there are more than a total of 10 broken wires in one rope lay, b___ more than 5 broken wires in a strand in one rope lay.
17. A grade 8 (80) chain should not be subjected to temperatures greater than a)___250oF, b)___500oF, c)___1000oF, c)___2000oF.
18. Discoloration is an indication that a chain has been overheated. True___, False___.
19. Synthetic web slings a)___cannot be steam cleaned, b)___ will withstand temperatures up to 194 oF, c)___ will withstand temperatures up to 244 oF .
20. Slings made from 6 x 19 and 6 x 37 independent wire rope core is rated to operate at temperatures as low as a)___-10 oF, b)___-20 oF, c)___-40 oF, d) a)___-60 oF e)___-80 oF.
21. OSHA requires that a synthetic web sling be permanently marked to show: a)___ the name & trademark of the manufacturer, b)___ the manufacturer’s code or stock number, c)___ rated loads for hitches, d)___ the type of synthetic web material.
21. OSHA requires alloy chain slings to have permanently affixed identification stating a)___size, b)___grade, c)___rated load, d)___angle load based on reach, e)___number of legs, f)___sling manufacturer.
22. Steel core slings should never be used at temperatures greater than a)___200oF, b)___300oF, c)___400oF, c)___500oF.
23. Synthetic slings should never be used at temperatures greater than a)___100oF, b)___200oF, c)___300oF, c)___400oF.
24. Basket hitch capacity must be reduced if the diameter of the basket is less than 20 times the diameter of the rope. True___, False___
25. The choker capacity is further reduced if the angle of choke is less than a)___60 o, a)___90 o, a)___120 o, a)___150 o.
26. The smaller the angle between a sling leg and horizontal, the less stress on the leg. True___, False___
27. A good sling angle to aim for is: a)___30o, a)___45o, a)___60o, a)___90o.
28. If one leg of a sling is at least as long as the distance between the points where it is fastened to the load, the angle of the sling will be at least: a)___30o, a)___45o, a)___60o, a)___90o.
29. At a 30o angle between sling legs and horizontal, the sling will carry about a)___1/2 times, b)___same, c)___twice, d)___4 times the weight of a single leg when both legs are vertical.
30. At a 60o angle between sling legs and horizontal, the sling will carry a)___1/2 times, b)___same, c)___150%, or d)___170%, e___twice the weight of a single leg when both legs are vertical.
30. At a 90o angle between sling legs and horizontal, the sling will carry a)___1/2 times, b)___same, c)___150%, or d)___170%, e___ twice the weight of a single leg when both legs are vertical.
31. It is important to make the choker as tight as possible. True___, False___
32. Blocks should be used to prevent angles less than 30o on a choker hitch.
33. Basket hitch capacity is a)___1/2 times, b)___same, c)___150%, or d)___170%, e___ twice the weight of a single leg when both legs are vertical.
34. Four leg slings have the same lifting capacity as three leg slings. True___, False___
35. A three leg sling carries 50 % more than a two leg sling if the center of gravity is in is in the center of the connection points and the legs are adjusted properly (share load equally). True___, False___
36. A screw pin shackle is the best type to use for permanent installations. True___, False___.
37. The pin on a screw pin shackle must be tightened before each use. True___, False___.
38. A round pin shackle is good for side loads. True___, False___
39. When the included angle is greater than 90 degrees, the sling should be connected to the hoist rope using a)___ a hook, b)___a shackle or link.
40. Malleable cast iron wire rope clips must not be used. True___, False___
41. L/H is: a)___ The length of a sling leg divided by the height from a horizontal line between the connection points and the point where the legs come together, b)___the load multiplier, c)___should never exceed 2.0, d)___ is 2.0 for a 30o angle between the sling leg and the horizontal, e)___is the load angle factor, which when multiplied by the load on each leg with both legs vertical (90o angle with horizontal), gives the load on each leg for the particular sling angle.
Rigging Quiz - Answers
1. Wire rope slings must be removed from service if they have kinks. True__, False__
2. Chain slings must be removed from service if they have excessive wear. True__, False__
3. The eyes of wire ropes may be formed with wire rope clips. True__, False__
4. Rigging equipment should be inspected for defects by a competent person: 1) prior to use on each shift___, 2) once each month___, 3) once each year___
5. Rigging equipment is damaged if it is overloaded. True__, False__
6. Eyes in slings may be formed by knots in the rope. True__, False__
7. All chains and slings should be marked as to their capacities, proof tested and marked, or discarded. True__, False__
8. A person making a heavy lift should consult a rigging chart. True__, False__
9. It is OK to walk under a load if the rigging equipment has been inspected. True__, False__
10. A deformed rigging fitting should be removed from service. True__, False__
11. Any hardened bolt can be used to pin a shackle. True__, False__
12. Allowable wear to a shackle before replacement should be less than a)___5 %, b)___10%, c)___15 %, d)___20%, or e)___25% of any sectional dimension.
13. The following are reasons for removing a fitting from service: a)___a sharp surface nick, b)___a surface gouge, c)___a crack.
14. A lay in a wire rope is equal to one complete revolution of a strand. True__, False__
15. Two broken wires within one wire rope diameter of a fitting is cause for removal from service. True__, False__
16. Wire ropes should be removed from service if: a)___ there are more than a total of 10 broken wires in one rope lay, b___ more than 5 broken wires in a strand in one rope lay.
17. A grade 8 (80) chain should not be subjected to temperatures greater than a)___250oF, b)___500oF, c)___1000oF, c)___2000oF.
18. Discoloration is an indication that a chain has been overheated. True___, False___.
19. Synthetic web slings a)___cannot be steam cleaned, b)___ will withstand temperatures up to 194 oF, c)___ will withstand temperatures up to 244 oF .
20. Slings made from 6 x 19 and 6 x 37 independent wire rope core is rated to operate at temperatures as low as a)___-10 oF, b)___-20 oF, c)___-40 oF, d) a)___-60 oF e)___-80 oF.
21. OSHA requires that a synthetic web sling be permanently marked to show: a)___ the name & trademark of the manufacturer, b)___ the manufacturer’s code or stock number, c)___ rated loads for hitches, d)___ the type of synthetic web material.
21. OSHA requires alloy chain slings to have permanently affixed identification stating a)___size, b)___grade, c)___rated load, d)___angle load based on reach, e)___number of legs, f)___sling manufacturer.
22. Steel core slings should never be used at temperatures greater than a)___200oF, b)___300oF, c)___400oF, c)___500oF.
23. Synthetic slings should never be used at temperatures greater than a)___100oF, b)___200oF, c)___300oF, c)___400oF.
24. Basket hitch capacity must be reduced if the diameter of the basket is less than 20 times the diameter of the rope. True___, False___
25. The choker capacity is further reduced if the angle of choke is less than a)___60 o, a)___90 o, a)___120 o, a)___150 o.
26. The smaller the angle between a sling leg and horizontal, the less stress on the leg. True___, False___
27. A good sling angle to aim for is: a)___30o, a)___45o, a)___60o, a)___90o.
28. If one leg of a sling is at least as long as the distance between the points where it is fastened to the load, the angle of the sling will be at least: a)___30o, a)___45o, a)___60o, a)___90o.
29. At a 30o angle between sling legs and horizontal, the sling will carry about a)___1/2 times, b)___same, c)___twice, d)___4 times the weight of a single leg when both legs are vertical.
30. At a 60o angle between sling legs and horizontal, the sling will carry a)___1/2 times, b)___same, c)___150%, or d)___170%, e___twice the weight of a single leg when both legs are vertical.
30. At a 90o angle between sling legs and horizontal, the sling will carry a)___1/2 times, b)___same, c)___150%, or d)___170%, e___ twice the weight of a single leg when both legs are vertical.
31. It is important to make the choker as tight as possible. True___, False___
32. Blocks should be used to prevent angles less than 30o on a choker hitch.
33. Basket hitch capacity is a)___1/2 times, b)___same, c)___150%, or d)___170%, e___ twice the weight of a single leg when both legs are vertical.
34. Four leg slings have the same lifting capacity as three leg slings. True___, False___
35. A three leg sling carries 50 % more than a two leg sling if the center of gravity is in is in the center of the connection points and the legs are adjusted properly (share load equally). True___, False___
36. A screw pin shackle is the best type to use for permanent installations. True___, False___.
37. The pin on a screw pin shackle must be tightened before each use. True___, False___.
38. A round pin shackle is good for side loads. True___, False___
39. When the included angle is greater than 90 degrees, the sling should be connected to the hoist rope using a)___ a hook, b)___a shackle or link.
40. Malleable cast iron wire rope clips must not be used. True___, False___
41. L/H is: a)___ The length of a sling leg divided by the height from a horizontal line between the connection points and the point where the legs come together, b)___the load multiplier, c)___should never exceed 2.0, d)___ is 2.0 for a 30o angle between the sling leg and the horizontal, e)___is the load angle factor, which when multiplied by the load on each leg with both legs vertical (90o angle with horizontal), gives the load on each leg for the particular sling angle.
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