A triple-block has how many sheaves?

Prepare for the Boatswain’s Mate Chief (BMC) SWE Exam with in-depth study materials and multiple-choice questions. Enhance your understanding with well-explained hints and explanations. Ready yourself to excel!

Multiple Choice

A triple-block has how many sheaves?

Explanation:
In rope rigging, a block is a pulley housing that contains one or more wheels, called sheaves. The number of sheaves equals the number of wheels inside the block. A triple-block is built with three wheels, so it has three sheaves. This configuration lets the rope pass through three sheaves, providing more room for rope segments and often increasing mechanical advantage or routing options. (For reference, a single-block has one wheel, a double-block has two.)

In rope rigging, a block is a pulley housing that contains one or more wheels, called sheaves. The number of sheaves equals the number of wheels inside the block. A triple-block is built with three wheels, so it has three sheaves. This configuration lets the rope pass through three sheaves, providing more room for rope segments and often increasing mechanical advantage or routing options. (For reference, a single-block has one wheel, a double-block has two.)

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