Which of the following cannot be used for lifting?

The correct answer indicates that all the listed materials—nylon slings, chain, and wire rope—are indeed suitable for lifting. Each of these materials has specific applications and strengths that make them appropriate for various lifting tasks in the construction and hoisting industry.

Nylon slings are commonly used due to their flexibility and lightweight properties, making them easy to handle while minimizing damage to the load. They are particularly effective for loads with irregular shapes.

Chains are known for their strength and durability, which makes them suitable for heavy lifting tasks. They have a high resistance to abrasion and can handle high-temperature environments effectively.

Wire rope is widely utilized in the hoisting and rigging industries because of its high tensile strength and versatility. It's ideal for lifting heavy loads and is often used in cranes and other heavy machinery.

Given that all these materials are accepted and commonly used in proper lifting techniques, the answer confirms that they can safely be part of a lifting operation when used appropriately. Always ensure that the equipment is rated for the intended load and that proper safety protocols are followed.