Overhead Crane Practice Test

In crane operations, what is the likelihood of a load slipping when horizontal sling angles increase?

1. Increases

2. Decreases

3. Remains the same

4. Varies dramatically

The correct answer is: Increases

When horizontal sling angles increase, the likelihood of a load slipping generally increases. This occurs because a greater horizontal angle places more lateral stress on the sling and the load itself. The force applied to the load during lifting is not purely vertical; instead, it has both vertical and horizontal components. As the horizontal angle rises, it tends to reduce the effective lifting capacity of the slings, which can lead to instability. Furthermore, the increased angle often results in slings being less secure, particularly if they are not properly adjusted or if they are not designed to handle significant lateral forces. This instability can result in the load slipping from its secure position, making it essential for operators to maintain recommended sling angles to ensure safe lifting practices.