What does "reeving a block" refer to?

Reeving a block specifically refers to the process of threading a rope or cable through the sheaves of a block. This action is fundamental to the operation of block and tackle systems, which utilize the mechanical advantage provided by multiple sheaves to lift heavy loads more easily. By ensuring that the rope is properly threaded, the system can create a more efficient lifting mechanism, allowing for smoother operation and greater control over the load being lifted. Proper reeving is essential for both safety and functionality in rigging applications.

The other options, while related to lifting and rigging operations, describe different concepts. Lowering a load safely to the ground pertains to techniques and controls used after reeving and lifting are completed. Securing a load with straps involves different equipment and techniques unrelated to the action of reeving. The use of pulleys to redirect force describes a broader rigging principle but does not specifically define the precise action of reeving itself.