Exam Practice Questions And Correct

NCCCO Rigger Level II Certification Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary responsibility of a Rigger Level II during a lift?
• Signaling the crane operator
• Selecting rigging components and ensuring load stability
• Operating the crane
• Directing site traffic

Rationale: Level II riggers are responsible for planning and ensuring

rigging stability and component selection for complex lifts.

• When calculating sling tension, what must be known?
• Crane capacity and boom length
• Sling angle and load weight
• Sling diameter only 1 / 4

• Hoist drum diameter

Rationale: Sling tension is determined by load weight and the

horizontal sling angle.

• A load weighing 10,000 lbs is lifted using two slings at a 60° angle.

What is the tension on each sling?

• 5,000 lbs
• 5,773 lbs
• 6,000 lbs
• 4,500 lbs

Rationale: Tension = (Load / (2 × sin(sling angle))); 10,000 / (2 × sin

60°) ≈ 5,773 lbs.

• What does the term “center of gravity” refer to?
• The heaviest part of the load
• The middle of the load
• The point where the load is balanced in all directions
• The bottom-most point of the load

Rationale: The center of gravity is the balance point where the entire

load’s weight is concentrated.

• What happens if the hook is not positioned directly above the load’s

center of gravity?

• Nothing significant
• The load will shift or tip during lifting
• The sling will equalize automatically 2 / 4

• The crane will adjust automatically

Rationale: Misalignment causes the load to shift as it seeks to align

with gravity.

• When performing a multiple-crane lift, what must be established first?
• Crane operator qualifications
• Lift plan and communication procedure
• Crane maintenance logs
• Signal person certification

Rationale: Multi-crane lifts require detailed planning and

coordination to prevent instability.

• Which factor has the greatest effect on sling tension?
• Sling material
• Load temperature
• Sling angle
• Sling color

Rationale: Smaller sling angles increase tension significantly.

• What does “D/d ratio” refer to in rigging?
• Diameter of the object compared to sling diameter
• Depth of lift
• Drum rotation speed
• Design dimension

Rationale: D/d ratio affects sling bending stress and capacity. 3 / 4

• A D/d ratio that is too small causes what effect on wire rope slings?
• No effect
• Reduces sling efficiency and causes damage
• Increases capacity
• Reduces elongation

Rationale: Small D/d ratios bend slings excessively, reducing

strength.

10. When using shackles, the load should always be applied:

• Across the pin
• Along the centerline of the shackle body
• At the corners of the pin
• At an angle

Rationale: Proper load alignment prevents side loading and potential

failure.

11. The identification tag on a sling must show:

• The manufacturer’s address
• Rated load capacity and angle limitations
• Length only
• Inspector’s name

Rationale: Tags display working load limits and identification for

safety verification.

• Which of the following requires removal of a wire rope sling

from service?

• / 4