Red Seal Welding Practice Exam

If your sling included angle exceeds what degree, you should use a spreader bar?

1. 90

2. 100

3. 120

4. 150

The correct answer is: 120

When using a sling to lift heavy objects, it is important to consider the angle between the two legs of the sling. This angle affects the distribution of weight and can potentially increase the stress on the sling. The greater the angle, the more stress is placed on the sling. Options A, B, and D suggest angles that are too narrow, which would result in a higher stress on the sling and potentially cause damage or failure. Option C of 120 degrees is the optimal angle for lifting heavy objects with a sling, as it distributes the weight evenly and minimizes stress on the sling. Therefore, when the included angle exceeds 120 degrees, it is recommended to use a spreader bar to ensure safe and effective lifting.