A double hook is called a sister hook.

A double hook is called a sister hook.

• A. True
• B. False
• C. Not sure
• D. N/A

Answer: (A)

In rigging terminology, when a load is lifted using two hooks in tandem, the second hook that works alongside the primary one is called a sister hook. The term emphasizes that these hooks are a paired set, two lifting points on the same rigging arrangement, and the double-hook setup is simply the two hooks together. So the statement is true because “sister hook” is the standard name for that second hook in a two-hook lifting configuration. When using a sister (double) hook, you must ensure both hooks are rated for the load and rigging is arranged so the load is balanced and within the crane’s tandem-lift capacity. The other options don’t fit because they reflect uncertainty or deny a real, commonly used term.

In rigging terminology, when a load is lifted using two hooks in tandem, the second hook that works alongside the primary one is called a sister hook. The term emphasizes that these hooks are a paired set, two lifting points on the same rigging arrangement, and the double-hook setup is simply the two hooks together. So the statement is true because “sister hook” is the standard name for that second hook in a two-hook lifting configuration. When using a sister (double) hook, you must ensure both hooks are rated for the load and rigging is arranged so the load is balanced and within the crane’s tandem-lift capacity. The other options don’t fit because they reflect uncertainty or deny a real, commonly used term.