Marine Electrical Systems USCG Question #160 (Set 6)

Which of the following conditions will occur if the brake solenoid coil burns out on a cargo winch with an electrical brake?

Official USCG Answer & Rule Citation

Correct Answer: Option C — The brake will be set by spring force.

Cargo winch electromagnetic holding brakes are spring-applied and electrically released. When power is supplied, the solenoid coil energizes to pull the shoes off the drum; consequently, a burned-out solenoid coil removes the magnetic lifting force, causing heavy internal springs to immediately clamp the brake.

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