Illinois Roofing Practice Exam

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Why are slings recommended for the safe operation of a crane or hoist?

To increase noise levels
To improve fuel efficiency
Slings eliminate the risk of hooking a wire rope on itself
To enhance roof ventilation

The correct answer is: Slings eliminate the risk of hooking a wire rope on itself

The recommendation of using slings for the safe operation of a crane or hoist is primarily due to their ability to eliminate the risk of hooking a wire rope on itself. When using slings, they provide a more secure and stable method of lifting loads, reducing the likelihood of accidents that can occur from improper rigging, such as catching the wire rope on itself, which could lead to sudden releases or unpredictable swings of the load. The use of slings also helps distribute the load more evenly and reduces stress on the lifting mechanism, enhancing safety during operations. This method is also better suited for handling loads of various shapes and sizes, allowing for greater versatility in lifting operations. In contrast, the other options do not relate to the primary safety considerations associated with slings. Increasing noise levels or improving fuel efficiency is not a function of using slings, and while ventilation is important in roofing contexts, it is unrelated to crane or hoist operations.