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 and crane operation, a twin-hook setup means two hooks on the same block, used to lift two loads or to aid rigging. The term “sister hook” is the conventional name for the second hook in that arrangement, so a double hook is indeed called a sister hook. This is why the statement is true. When using this configuration, always verify each hook and load line capacity, ensure balanced loads, and watch for interference or side loading. The other options don’t reflect standard terminology for this setup.

In rigging and crane operation, a twin-hook setup means two hooks on the same block, used to lift two loads or to aid rigging. The term “sister hook” is the conventional name for the second hook in that arrangement, so a double hook is indeed called a sister hook. This is why the statement is true. When using this configuration, always verify each hook and load line capacity, ensure balanced loads, and watch for interference or side loading. The other options don’t reflect standard terminology for this setup.