When lifting an object with a four-leg sling, how many of the legs must be capable of supporting the total load?

• A. 1 leg
• B. 2 legs
• C. 3 legs
• D. All 4 legs

Answer: (B)

In rigging and lifting operations, the design of a four-leg sling is such that it provides redundancy and distributes the load effectively across all legs. However, when determining how many legs of the sling must be capable of supporting the total load being lifted, it's essential to note that at least two legs must be functional to carry the load safely and effectively.

This is primarily because, in the event that one leg becomes compromised or fails, the remaining legs must be able to support the load and prevent a drop or shift in weight. Having only one leg capable of supporting the entire weight would not provide adequate safety and could lead to a dangerous situation. Therefore, having at least two legs capable of supporting the total load helps ensure that there is enough strength and stability in the lift, contributing to safe handling practices.

The other options suggest fewer legs than necessary to ensure safety under potential failure scenarios; therefore, they do not align with standard rigging practices which emphasize redundancy and safety in lifting operations.