General Subjects (Auxiliaries & Systems) USCG Question #1045 (Set 17)

As it pertains to the automatic electric brake of a capstan, what statement is true?

Official USCG Answer & Rule Citation

Correct Answer: Option C — The brake is spring set and electrically released, and the brake automatically sets when electric power is removed from the electric drive motor.

Fail-safe design principles for shipboard capstans dictate that brakes must be spring-set to hold the load in the event of a power failure. The brake is held open by an electromagnetic coil energized during motor operation, ensuring the load is immediately secured whenever electrical power is removed.

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