Which of the following is a valid type of sling configuration?

• A. Endless
• B. Chain
• C. Synthetic webbing
• D. Wire rope

Answer: (A)

Endless is a sling configuration because it describes a continuous loop of sling material with no ends, forming a closed loop that can be used in various lift methods (such as surrounding the load or creating a basket-style restraint). This looped form defines how the sling engages the load and distributes weight, which is what a configuration refers to.

The other options refer to what the sling is made of—chain, synthetic webbing, or wire rope—rather than how the sling is formed. These materials can be used to create endless slings, but the term “endless” specifically identifies the looped configuration itself, which is why it’s the valid choice here.