Which of the following is a common cause of rigging failures in field lifts?

• A. Overloading beyond rating.
• B. Regular inspections and using rated hardware.
• C. Proper communication during lift.
• D. Maintaining a dry environment.

Answer: (A)

In rigging, the most direct cause of a failure is putting more load on the system than its components are designed to carry. When a lift exceeds the rated capacity of any element—whether the sling, chain, hook, or fitting—the material can reach its elastic limit and fail, or deform enough to lose grip or spread, leading to a drop. Field lifts often involve dynamic forces: starts, stops, swings, and movement can spike peak loads above the apparent weight, making overloads even more dangerous if ratings aren’t respected. That’s why using hardware that’s properly rated for the load and staying within those limits is the strongest safeguard against rigging failures. Regular inspections and clear communication are vital practices that help catch wear, damage, or missteps before they cause a problem, while keeping things dry helps mitigate corrosion but doesn’t address the fundamental risk of overloading.