Before using rigging, the operator should be aware of which rating?

Before using rigging, the operator should be aware of which rating?

• A. Lowest capacity rating
• B. Highest capacity rating
• C. Length of the crane span
• D. Weight of the controller

Answer: (A)

The main idea is to identify the limiting capacity for a rigged lift. When you rig a load, the safe lifting capacity isn’t just the crane’s rating; it’s the smallest rated capacity among all pieces in the lifting system—the crane, the rigging hardware, and any attachments. That weakest link determines what you can safely lift. So you must know the lowest capacity rating before starting the lift, because exceeding that limit risks the rigging failing or the crane overloading. The other factors listed aren’t the limiting factor. The length of the crane span affects reach and stability, not the load rating itself. The weight of the controller isn’t part of the lifting capacity calculation.

The main idea is to identify the limiting capacity for a rigged lift. When you rig a load, the safe lifting capacity isn’t just the crane’s rating; it’s the smallest rated capacity among all pieces in the lifting system—the crane, the rigging hardware, and any attachments. That weakest link determines what you can safely lift. So you must know the lowest capacity rating before starting the lift, because exceeding that limit risks the rigging failing or the crane overloading.

The other factors listed aren’t the limiting factor. The length of the crane span affects reach and stability, not the load rating itself. The weight of the controller isn’t part of the lifting capacity calculation.