There is a load that needs to be moved by sling load that requires the sling load rigger to add attachment points. The load is 11,200 lbs. How many medium clevises must be used as attachment points to safely lift the load?

There is a load that needs to be moved by sling load that requires the sling load rigger to add attachment points. The load is 11,200 lbs. How many medium clevises must be used as attachment points to safely lift the load?

• A. 1
• B. 2
• C. 3
• D. 4

Answer: (C)

Distribute the load across multiple attachment points so no single piece of hardware is overloaded. Each medium clevis has a working load limit (WLL), and you need enough clevises to exceed the total load. If a medium clevis is rated around 3,750 pounds, dividing the load by the WLL gives 11,200 / 3,750 ≈ 2.99. Since you can’t use a fraction of a clevis, you need three attachment points. With three clevises, the combined capacity is about 11,250 pounds, giving a small safety margin for rigging and dynamic forces. Using only two would provide roughly 7,500 pounds, which is not sufficient for an 11,200-pound load. Therefore, three medium clevises are required.

Distribute the load across multiple attachment points so no single piece of hardware is overloaded. Each medium clevis has a working load limit (WLL), and you need enough clevises to exceed the total load.

If a medium clevis is rated around 3,750 pounds, dividing the load by the WLL gives 11,200 / 3,750 ≈ 2.99. Since you can’t use a fraction of a clevis, you need three attachment points. With three clevises, the combined capacity is about 11,250 pounds, giving a small safety margin for rigging and dynamic forces. Using only two would provide roughly 7,500 pounds, which is not sufficient for an 11,200-pound load. Therefore, three medium clevises are required.