NCCCO Rigger Level II Certification
Exam Practice Questions And Correct
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Rationales 2026 Q&A | Instant
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1. What is the primary responsibility of a Rigger Level II during a lift?
A. Signaling the crane operator
B. Selecting rigging components and ensuring load stability
C. Operating the crane
D. Directing site traffic
Rationale: Level II riggers are responsible for planning and ensuring
rigging stability and component selection for complex lifts.
2. When calculating sling tension, what must be known?
A. Crane capacity and boom length
B. Sling angle and load weight
C. Sling diameter only
, D. Hoist drum diameter
Rationale: Sling tension is determined by load weight and the
horizontal sling angle.
3. A load weighing 10,000 lbs is lifted using two slings at a 60° angle.
What is the tension on each sling?
A. 5,000 lbs
B. 5,773 lbs
C. 6,000 lbs
D. 4,500 lbs
Rationale: Tension = (Load / (2 × sin(sling angle))); 10,000 / (2 × sin
60°) ≈ 5,773 lbs.
4. What does the term “center of gravity” refer to?
A. The heaviest part of the load
B. The middle of the load
C. The point where the load is balanced in all directions
D. The bottom-most point of the load
Rationale: The center of gravity is the balance point where the entire
load’s weight is concentrated.
5. What happens if the hook is not positioned directly above the load’s
center of gravity?
A. Nothing significant
B. The load will shift or tip during lifting
C. The sling will equalize automatically
, D. The crane will adjust automatically
Rationale: Misalignment causes the load to shift as it seeks to align
with gravity.
6. When performing a multiple-crane lift, what must be established first?
A. Crane operator qualifications
B. Lift plan and communication procedure
C. Crane maintenance logs
D. Signal person certification
Rationale: Multi-crane lifts require detailed planning and
coordination to prevent instability.
7. Which factor has the greatest effect on sling tension?
A. Sling material
B. Load temperature
C. Sling angle
D. Sling color
Rationale: Smaller sling angles increase tension significantly.
8. What does “D/d ratio” refer to in rigging?
A. Diameter of the object compared to sling diameter
B. Depth of lift
C. Drum rotation speed
D. Design dimension
Rationale: D/d ratio affects sling bending stress and capacity.
, 9. A D/d ratio that is too small causes what effect on wire rope slings?
A. No effect
B. Reduces sling efficiency and causes damage
C. Increases capacity
D. Reduces elongation
Rationale: Small D/d ratios bend slings excessively, reducing
strength.
10. When using shackles, the load should always be applied:
A. Across the pin
B. Along the centerline of the shackle body
C. At the corners of the pin
D. At an angle
Rationale: Proper load alignment prevents side loading and potential
failure.
11. The identification tag on a sling must show:
A. The manufacturer’s address
B. Rated load capacity and angle limitations
C. Length only
D. Inspector’s name
Rationale: Tags display working load limits and identification for
safety verification.
12. Which of the following requires removal of a wire rope sling
from service?
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary responsibility of a Rigger Level II during a lift?
A. Signaling the crane operator
B. Selecting rigging components and ensuring load stability
C. Operating the crane
D. Directing site traffic
Rationale: Level II riggers are responsible for planning and ensuring
rigging stability and component selection for complex lifts.
2. When calculating sling tension, what must be known?
A. Crane capacity and boom length
B. Sling angle and load weight
C. Sling diameter only
, D. Hoist drum diameter
Rationale: Sling tension is determined by load weight and the
horizontal sling angle.
3. A load weighing 10,000 lbs is lifted using two slings at a 60° angle.
What is the tension on each sling?
A. 5,000 lbs
B. 5,773 lbs
C. 6,000 lbs
D. 4,500 lbs
Rationale: Tension = (Load / (2 × sin(sling angle))); 10,000 / (2 × sin
60°) ≈ 5,773 lbs.
4. What does the term “center of gravity” refer to?
A. The heaviest part of the load
B. The middle of the load
C. The point where the load is balanced in all directions
D. The bottom-most point of the load
Rationale: The center of gravity is the balance point where the entire
load’s weight is concentrated.
5. What happens if the hook is not positioned directly above the load’s
center of gravity?
A. Nothing significant
B. The load will shift or tip during lifting
C. The sling will equalize automatically
, D. The crane will adjust automatically
Rationale: Misalignment causes the load to shift as it seeks to align
with gravity.
6. When performing a multiple-crane lift, what must be established first?
A. Crane operator qualifications
B. Lift plan and communication procedure
C. Crane maintenance logs
D. Signal person certification
Rationale: Multi-crane lifts require detailed planning and
coordination to prevent instability.
7. Which factor has the greatest effect on sling tension?
A. Sling material
B. Load temperature
C. Sling angle
D. Sling color
Rationale: Smaller sling angles increase tension significantly.
8. What does “D/d ratio” refer to in rigging?
A. Diameter of the object compared to sling diameter
B. Depth of lift
C. Drum rotation speed
D. Design dimension
Rationale: D/d ratio affects sling bending stress and capacity.
, 9. A D/d ratio that is too small causes what effect on wire rope slings?
A. No effect
B. Reduces sling efficiency and causes damage
C. Increases capacity
D. Reduces elongation
Rationale: Small D/d ratios bend slings excessively, reducing
strength.
10. When using shackles, the load should always be applied:
A. Across the pin
B. Along the centerline of the shackle body
C. At the corners of the pin
D. At an angle
Rationale: Proper load alignment prevents side loading and potential
failure.
11. The identification tag on a sling must show:
A. The manufacturer’s address
B. Rated load capacity and angle limitations
C. Length only
D. Inspector’s name
Rationale: Tags display working load limits and identification for
safety verification.
12. Which of the following requires removal of a wire rope sling
from service?
