Which design factor is appropriate for a standard hoisting attachment?

A design factor of 5 is appropriate for a standard hoisting attachment because it accounts for the load's weight, the environmental conditions, and potential dynamic forces that can occur during lifting operations. This factor is used to ensure maximum safety and reliability during hoisting.

In rigging applications, the design factor is critical because it provides a margin of safety that helps prevent equipment failure. When selecting a design factor, the consideration includes not only the static weight of the load but also any additional stresses that may be placed on the rigging attachments due to movement, swinging loads, or unexpected shocks during lifting. A design factor of 5 means that the equipment should be able to safely handle loads up to five times its rated capacity, allowing for these additional variables and enhancing overall safety in lifting operations.