NCCCO Rigger Level I Certification Practice
Exam Questions With Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary responsibility of a rigger?
A. Operating the crane
B. Inspecting load charts
C. Safely attaching and guiding loads
D. Supervising the jobsite
Answer: C
Rationale: A rigger’s main duty is to properly attach loads to lifting
equipment and ensure safe movement. Crane operation and
supervision are separate roles.
2. What is the minimum number of broken wires in one strand of a
wire rope that would require removal from service?
A. 2
B. 3
,C. 5
D. 10
Answer: B
Rationale: Three or more broken wires in one strand within one lay is
a common removal criterion indicating reduced strength.
3. What does the term “working load limit” (WLL) refer to?
A. Maximum breaking strength
B. Average lifting weight
C. Maximum safe load under normal conditions
D. Load at failure point
Answer: C
Rationale: WLL represents the maximum load a component can safely
handle during normal use, incorporating safety factors.
4. Which hitch provides the most secure method for lifting cylindrical
loads?
A. Vertical hitch
B. Basket hitch
C. Choker hitch
D. Bridle hitch
,Answer: C
Rationale: A choker hitch tightens around cylindrical loads, preventing
slipping during lifting.
5. What is the purpose of a tag line?
A. Increase lifting capacity
B. Stabilize and control the load
C. Attach slings
D. Measure load weight
Answer: B
Rationale: Tag lines help control load rotation and movement,
improving safety during lifts.
6. What type of sling is most resistant to cutting and abrasion?
A. Synthetic web sling
B. Wire rope sling
C. Chain sling
D. Nylon sling
Answer: C
Rationale: Chain slings are highly durable and resistant to cutting and
abrasion compared to other sling types.
, 7. What is the first step before rigging any load?
A. Attach slings
B. Estimate load weight
C. Signal the operator
D. Lift slowly
Answer: B
Rationale: Knowing the load weight ensures proper selection of
rigging equipment and prevents overloading.
8. What angle between sling legs increases tension in the sling?
A. 90°
B. 60°
C. 45°
D. All of the above
Answer: D
Rationale: As the sling angle decreases from vertical, tension increases
significantly, especially below 60°.
9. What is the purpose of a shackle pin?
A. Lock sling angle
Exam Questions With Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary responsibility of a rigger?
A. Operating the crane
B. Inspecting load charts
C. Safely attaching and guiding loads
D. Supervising the jobsite
Answer: C
Rationale: A rigger’s main duty is to properly attach loads to lifting
equipment and ensure safe movement. Crane operation and
supervision are separate roles.
2. What is the minimum number of broken wires in one strand of a
wire rope that would require removal from service?
A. 2
B. 3
,C. 5
D. 10
Answer: B
Rationale: Three or more broken wires in one strand within one lay is
a common removal criterion indicating reduced strength.
3. What does the term “working load limit” (WLL) refer to?
A. Maximum breaking strength
B. Average lifting weight
C. Maximum safe load under normal conditions
D. Load at failure point
Answer: C
Rationale: WLL represents the maximum load a component can safely
handle during normal use, incorporating safety factors.
4. Which hitch provides the most secure method for lifting cylindrical
loads?
A. Vertical hitch
B. Basket hitch
C. Choker hitch
D. Bridle hitch
,Answer: C
Rationale: A choker hitch tightens around cylindrical loads, preventing
slipping during lifting.
5. What is the purpose of a tag line?
A. Increase lifting capacity
B. Stabilize and control the load
C. Attach slings
D. Measure load weight
Answer: B
Rationale: Tag lines help control load rotation and movement,
improving safety during lifts.
6. What type of sling is most resistant to cutting and abrasion?
A. Synthetic web sling
B. Wire rope sling
C. Chain sling
D. Nylon sling
Answer: C
Rationale: Chain slings are highly durable and resistant to cutting and
abrasion compared to other sling types.
, 7. What is the first step before rigging any load?
A. Attach slings
B. Estimate load weight
C. Signal the operator
D. Lift slowly
Answer: B
Rationale: Knowing the load weight ensures proper selection of
rigging equipment and prevents overloading.
8. What angle between sling legs increases tension in the sling?
A. 90°
B. 60°
C. 45°
D. All of the above
Answer: D
Rationale: As the sling angle decreases from vertical, tension increases
significantly, especially below 60°.
9. What is the purpose of a shackle pin?
A. Lock sling angle
