Competent Rigger Training Practice Quiz

23 Questions | By Pmh1safe | Last updated: Oct 15, 2020 | Total Attempts: 8413

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Questions and Answers

1.

Which of the following defects are cause for removing a web sling or polyester round sling from service?
- A.
  
  Cut or snag
- B.
  
  Excessive abrasion or wear
- C.
  
  Missing or illegible sling identification
- D.
  
  Ultraviolet light damage
2.

What size slings are required to lift the load?
- A.
  
  1/2"
- B.
  
  5/8"
- C.
  
  3/4"
- D.
  
  1"
3.

What is the load that each leg of the rigging will see?
- A.
  
  4,377lbs
- B.
  
  5,780lbs
- C.
  
  8,688lbs
- D.
  
  5,000lbs
4.

Based on the sling size determined in the previous question, what is the minimum shackle size required to lift the load?
- A.
  
  1/2"
- B.
  
  5/8"
- C.
  
  3/4"
- D.
  
  1"
5.

Based on your calculation in the last question, what is the angle of the slings?
- A.
  
  30 degrees
- B.
  
  45 degrees
- C.
  
  60 degrees
- D.
  
  75 degrees
6.

Job built overhead lifting devices must be?
- A.
  
  Engineered
- B.
  
  Stamped by a Professional Engineer (P.E)
- C.
  
  Built by a qualified fabricator
- D.
  
  Tested to 125% of intended capacity
7.

When using multiple leg rigging, the most desirable sling angles to have are?
- A.
  
  5-25 degrees
- B.
  
  30-40 degrees
- C.
  
  45-70 degrees
- D.
  
  75-90 degrees
8.

The minimum recommended sling angle is ?
- A.
  
  30 degrees
- B.
  
  45 degrees
- C.
  
  60 degrees
- D.
  
  Sling angles are not recommended
9.

Determine the load angle factor of the example below by using field survival techniques.
- A.
  
  2.632
- B.
  
  1.156
- C.
  
  1.414
10.

When a shackle is side loaded at a 90 degree angle, the loss of capacity is?
- A.
  
  10%
- B.
  
  50%
- C.
  
  75%
- D.
  
  Shackles can not be side loaded
11.

All overhead lifting products such as wire rope, synthetic slings, and hardware must be domestic made.
- A.
  
  True
- B.
  
  False
12.

Kiewit projects are allowed to use chain rigging in daily activities.
- A.
  
  True
- B.
  
  False
13.

A tear in the outer sheath of a polyester endless sling requires removal from service?
- A.
  
  True
- B.
  
  False
14.

The maximum included angle of a hook is?
- A.
  
  10 degrees
- B.
  
  12 degrees
- C.
  
  30 degrees
- D.
  
  90 degrees
15.

The maximum included angle of a screw pin or bolt type shackle is?
- A.
  
  15 degrees
- B.
  
  30 degrees
- C.
  
  120 degrees
- D.
  
  180 degrees
16.

A lay of wire rope is the distance it takes for a single strand to fully spiral around the wire rope. This is typically 6 to 7 times the rope diameter.
- A.
  
  True
- B.
  
  False
17.

ANSI B30.9 inspection frequency requires?
- A.
  
  Initial inspection upon purchase before use
- B.
  
  Daily inspection before use
- C.
  
  Periodic inspection not to exceed one year
- D.
  
  Does not require inspection
18.

Periodic rigging inspection will be documented quarterly using a color code system the same as our assured grounding program?
- A.
  
  True
- B.
  
  False
19.

Maximum wear limitation of hooks and shackles is?
- A.
  
  5%
- B.
  
  10%
- C.
  
  15 %
- D.
  
  20%
20.

Which of the following defects are cause for removing a wire rope from service?
- A.
  
  Excessive broken wires
- B.
  
  Too shiny
- C.
  
  Missing I.D tag
- D.
  
  Displaced strands
21.

What share of the load will each leg of the rigging have?
- A.
  
  4,000lbs
- B.
  
  5,500lbs
- C.
  
  5,000 lbs
- D.
  
  10,000lbs
22.

OSHA requires competent riggers in what situations?
- A.
  
  Assembly /Dis-assembly activities
- B.
  
  When workers are within the fall zone of load
- C.
  
  Both a & b
- D.
  
  OSHA does not require competent riggers
23.

The foundation for safe rigging practices starts with?
- A.
  
  Know the working load limit of rigging components
- B.
  
  Load all components within the W.L.L
- C.
  
  Inspect components for acceptable condition
- D.
  
  A legible W.L.L tag or label