NCCCO RIGGER CERTIFICATION
LEVEL I
Exam Elaborations Questions &
Answers
2026
, A rigger is assigned to lift a prefabricated steel beam using a two-leg sling configuration, but fails
to account for sling angle reduction in capacity. What is the most immediate technical concern?
A. Increased crane counterweight
B. Reduced effective sling capacity due to angle loading
C. Excessive wind loading on the crane
D. Over-lubrication of rigging hardware
Answer: B
Rationale: As sling angles decrease from vertical, tension in each leg increases, reducing safe
working capacity.
During a lift, a Level 1 rigger notices a wire rope sling with broken wires clustered in one lay
length. What should be done?
A. Continue using if load is light
B. Paint over damaged area
C. Remove sling from service immediately
D. Rotate sling to redistribute wear
Answer: C
Rationale: Broken wire concentration indicates critical damage requiring removal from service.
True/False: The rigger’s primary responsibility includes verifying crane load charts before each lift.
Answer: True
Rationale: Riggers must ensure lift plans align with equipment capacity and configuration.
Fill in the blank: The ratio of load weight to sling capacity is referred to as the ________.
Answer: Load factor
Rationale: It is used to evaluate rigging safety margins.
A load shifts unexpectedly during a lift due to improper center of gravity identification. This most
likely indicates a failure in:
A. Crane braking system
B. Load weight estimation and balance calculation
C. Hydraulic pressure monitoring
D. Weather forecasting
Answer: B
Rationale: Incorrect center of gravity leads to instability during lifting.
True/False: Synthetic slings are immune to cutting or abrasion damage.
Answer: False
Rationale: Synthetic slings are highly susceptible to cuts and abrasion.
Fill in the blank: The inspection performed before each use of rigging equipment is called
________ inspection.
Answer: Pre-use (or frequent)
Rationale: Required to identify immediate hazards before lifting.
A rigger observes a shackle with a bent pin. What is the correct action?
A. Hammer it back into shape
B. Use it only for light loads
2
LEVEL I
Exam Elaborations Questions &
Answers
2026
, A rigger is assigned to lift a prefabricated steel beam using a two-leg sling configuration, but fails
to account for sling angle reduction in capacity. What is the most immediate technical concern?
A. Increased crane counterweight
B. Reduced effective sling capacity due to angle loading
C. Excessive wind loading on the crane
D. Over-lubrication of rigging hardware
Answer: B
Rationale: As sling angles decrease from vertical, tension in each leg increases, reducing safe
working capacity.
During a lift, a Level 1 rigger notices a wire rope sling with broken wires clustered in one lay
length. What should be done?
A. Continue using if load is light
B. Paint over damaged area
C. Remove sling from service immediately
D. Rotate sling to redistribute wear
Answer: C
Rationale: Broken wire concentration indicates critical damage requiring removal from service.
True/False: The rigger’s primary responsibility includes verifying crane load charts before each lift.
Answer: True
Rationale: Riggers must ensure lift plans align with equipment capacity and configuration.
Fill in the blank: The ratio of load weight to sling capacity is referred to as the ________.
Answer: Load factor
Rationale: It is used to evaluate rigging safety margins.
A load shifts unexpectedly during a lift due to improper center of gravity identification. This most
likely indicates a failure in:
A. Crane braking system
B. Load weight estimation and balance calculation
C. Hydraulic pressure monitoring
D. Weather forecasting
Answer: B
Rationale: Incorrect center of gravity leads to instability during lifting.
True/False: Synthetic slings are immune to cutting or abrasion damage.
Answer: False
Rationale: Synthetic slings are highly susceptible to cuts and abrasion.
Fill in the blank: The inspection performed before each use of rigging equipment is called
________ inspection.
Answer: Pre-use (or frequent)
Rationale: Required to identify immediate hazards before lifting.
A rigger observes a shackle with a bent pin. What is the correct action?
A. Hammer it back into shape
B. Use it only for light loads
2
