Rigger Level II Certification Practice Exam 2

Rigger Level II Certification Practice Exam 2 Questions and correct Answers (Verified Answers) with Rationales NCCCO/OSHA/ANSI Level II standards, covering load calculations, rigging gear inspection, sling angles, hardware, signaling, and safety practices.

• A synthetic web sling has a rated capacity of 4,800 lbs in a vertical hitch. What

is its capacity in a choker hitch?

• 3,840 lbs
• 3,840 lbs
• 4,320 lbs
• 2,400 lbs

✅ Rationale: Choker hitches typically reduce the sling's capacity by 20%.

4,800 × 0.8 = 3,840 lbs

• What is the main factor that reduces lifting capacity in a basket hitch?
• Sling length
• Sling angle 1 / 3

• Load shape
• Sling type

✅ Rationale: Sling angle affects load distribution and capacity. As angle

decreases from vertical, tension increases and capacity decreases.

• When inspecting wire rope, how many broken wires in one lay length require

the rope to be removed from service?

• 3
• 6
• 9
• 12

✅ Rationale: OSHA and ASME standards require removal when there are 6 or

more broken wires in one lay length.

• What is the D/d ratio when using a 1/2-inch diameter wire rope over a 5-inch

diameter sheave?

• 5
• 10
• 15
• 20

✅ Rationale: D/d ratio = Diameter of sheave ÷ Diameter of rope

5 ÷ 0.5 = 10

• / 3

• Which hitch type offers the least load control?
• Choker
• Vertical
• Basket
• Double choker

✅ Rationale: Choker hitches can allow the load to shift or roll; they offer the least control compared to other configurations.

• What is the maximum allowable wear on a chain sling link before it must be

removed from service?

• 5%
• 8%

C. 10%

D. 15%

✅ Rationale: According to ASME B30.9, 10% wear on any part of the chain link is the limit.

• A load weighing 8,000 lbs is to be lifted using a 2-leg sling at a 60° angle. Each

leg shares the load equally. What is the tension in each leg?

• 4,000 lbs
• 4,618 lbs
• 5,773 lbs
• 6,928 lbs
• / 3