Is it acceptable to knot two slings together when the load is less than half the WLL of the slings?

• A. True
• B. False
• C. It depends on the load
• D. Only under supervision

Answer: (B)

Knotting two slings together is not acceptable practice, regardless of the load being less than half the Working Load Limit (WLL) of the slings. Knotting can significantly reduce the strength of the slings and create a potential failure point that compromises safety. When two slings are knotted together, the distribution of the load can be uneven, which may lead to one sling bearing more load than the other. This can cause the slings to fail, posing risks to the load, the equipment, and personnel nearby.

Proper rigging techniques recommend using compatible connectors, such as shackles or hardware, that are designed for the purpose of joining slings. This ensures that the full strength of both slings can be utilized safely, maintaining an optimal level of safety during lifting operations. Therefore, the correct answer is that knotting slings together is not permissible, regardless of the load conditions.