Examination Questions And Correct

Certified Rigging Inspector Practice Examination Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

1. A primary responsibility of a certified rigging inspector is to:

• Operate lifting equipment
• Verify the condition and suitability of rigging gear
• Approve lift plans
• Supervise crane operators

Rationale: Inspectors focus on equipment condition, not operating or

planning duties.

2. The most common cause of rigging failure is:

• Manufacturing defects
• Environmental exposure
• Improper use or overloading 1 / 4

• Incorrect storage

Rationale: Human error and misuse account for most failures.

3. The working load limit (WLL) is defined as:

• The minimum breaking strength
• The maximum load before permanent deformation
• The maximum load a device is permitted to support under specific

conditions

• A manufacturer’s suggested rating

Rationale: WLL is the allowable safe load, well below the breaking

strength.

4. Wire rope diameter is measured:

• Across any two strands
• At the widest point across the rope
• At the thinnest point
• Only when under load

Rationale: The widest cross-section ensures accurate sizing.

• Which condition requires removing a wire rope sling from service?
• Minor surface rust
• Broken wires exceeding allowable limits
• Slight kinking
• Normal wear

Rationale: Exceeding broken-wire limits mandates immediate removal. 2 / 4

6. Shackles must be inspected:

• Monthly
• Annually
• Prior to each use
• Only after repairs

Rationale: All rigging hardware must be checked before every lift.

7. The term “D/d ratio” refers to:

• Load to sling angle
• Diameter of the load to diameter of the sling bend
• Drum size to rope size
• Deflection ratio

Rationale: D/d ensures proper bending radius to prevent damage.

8. A sling tag must always include:

• Storage instructions
• Rated capacity
• Manufacturer’s address
• Inspection interval

Rationale: Capacity is mandatory identification information.

9. Synthetic slings must be removed when:

• Color fades
• Cuts, snags, or broken stitching are present
• Tags are dirty 3 / 4

• They become stiff

Rationale: Structural damage requires immediate removal.

10. Alloy steel chain slings are preferred because:

• They are lighter
• They maintain strength at high temperatures
• They are cheaper
• They require no inspections

Rationale: Alloy steel retains strength better under heat and shock.

11. Rigging hardware should be replaced if:

• Paint is scratched
• Distortion or stretching is visible
• It is more than two years old
• Threads are dirty

Rationale: Deformation compromises load capacity.

12. The term “shock loading” describes:

• Gradual increase in load
• Sudden application of force
• Constant load for long periods
• Side loading

Rationale: Rapid load application can exceed WLL and damage gear.

• When performing a visual inspection, the inspector should:
• / 4