Which condition requires retirement of the sling or chain from service before use?

• A. Minor Cosmetic Scratches
• B. Slight Rust Without Structural Impact
• C. Fraying Or Heat Damage
• D. Moderate Bending Of A Link

Answer: (C)

Damage that compromises the sling or chain’s strength must trigger retirement before use. Fraying indicates worn or broken strands, reducing cross‑sectional area and allowing cracks to propagate under load, while heat damage can alter the metal’s properties, weakening toughness and strength and potentially creating new cracks. Both signs show the component no longer meets required load‑bearing standards, so it must be retired. Minor cosmetic scratches are superficial and don’t affect strength, slight rust without structural impact may be within allowable limits, and moderate bending of a link is a deformation that raises safety concerns, but the most direct and safety-critical indicator here is fraying or heat damage.