Rigger Level II Certification Practice Exam 2
Questions and correct Answers (Verified Answers)
with Rationales 2025
NCCCO/OSHA/ANSI Level II standards, covering load calculations, rigging gear
inspection, sling angles, hardware, signaling, and safety practices.
1. A synthetic web sling has a rated capacity of 4,800 lbs in a vertical hitch. What
is its capacity in a choker hitch?
A. 3,840 lbs
B. 3,840 lbs
C. 4,320 lbs
D. 2,400 lbs
✅ Rationale: Choker hitches typically reduce the sling's capacity by 20%.
4,800 × 0.8 = 3,840 lbs
2. What is the main factor that reduces lifting capacity in a basket hitch?
A. Sling length
B. Sling angle
,C. Load shape
D. Sling type
✅ Rationale: Sling angle affects load distribution and capacity. As angle
decreases from vertical, tension increases and capacity decreases.
3. When inspecting wire rope, how many broken wires in one lay length require
the rope to be removed from service?
A. 3
B. 6
C. 9
D. 12
✅ Rationale: OSHA and ASME standards require removal when there are 6 or
more broken wires in one lay length.
4. What is the D/d ratio when using a 1/2-inch diameter wire rope over a 5-inch
diameter sheave?
A. 5
B. 10
C. 15
D. 20
✅ Rationale: D/d ratio = Diameter of sheave ÷ Diameter of rope
5 ÷ 0.5 = 10
, 5. Which hitch type offers the least load control?
A. Choker
B. Vertical
C. Basket
D. Double choker
✅ Rationale: Choker hitches can allow the load to shift or roll; they offer the
least control compared to other configurations.
6. What is the maximum allowable wear on a chain sling link before it must be
removed from service?
A. 5%
B. 8%
C. 10%
D. 15%
✅ Rationale: According to ASME B30.9, 10% wear on any part of the chain link is
the limit.
7. 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?
A. 4,000 lbs
B. 4,618 lbs
C. 5,773 lbs
D. 6,928 lbs
Questions and correct Answers (Verified Answers)
with Rationales 2025
NCCCO/OSHA/ANSI Level II standards, covering load calculations, rigging gear
inspection, sling angles, hardware, signaling, and safety practices.
1. A synthetic web sling has a rated capacity of 4,800 lbs in a vertical hitch. What
is its capacity in a choker hitch?
A. 3,840 lbs
B. 3,840 lbs
C. 4,320 lbs
D. 2,400 lbs
✅ Rationale: Choker hitches typically reduce the sling's capacity by 20%.
4,800 × 0.8 = 3,840 lbs
2. What is the main factor that reduces lifting capacity in a basket hitch?
A. Sling length
B. Sling angle
,C. Load shape
D. Sling type
✅ Rationale: Sling angle affects load distribution and capacity. As angle
decreases from vertical, tension increases and capacity decreases.
3. When inspecting wire rope, how many broken wires in one lay length require
the rope to be removed from service?
A. 3
B. 6
C. 9
D. 12
✅ Rationale: OSHA and ASME standards require removal when there are 6 or
more broken wires in one lay length.
4. What is the D/d ratio when using a 1/2-inch diameter wire rope over a 5-inch
diameter sheave?
A. 5
B. 10
C. 15
D. 20
✅ Rationale: D/d ratio = Diameter of sheave ÷ Diameter of rope
5 ÷ 0.5 = 10
, 5. Which hitch type offers the least load control?
A. Choker
B. Vertical
C. Basket
D. Double choker
✅ Rationale: Choker hitches can allow the load to shift or roll; they offer the
least control compared to other configurations.
6. What is the maximum allowable wear on a chain sling link before it must be
removed from service?
A. 5%
B. 8%
C. 10%
D. 15%
✅ Rationale: According to ASME B30.9, 10% wear on any part of the chain link is
the limit.
7. 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?
A. 4,000 lbs
B. 4,618 lbs
C. 5,773 lbs
D. 6,928 lbs
