Marine Electrical Systems USCG Question #491 (Set 17)

If the circuit shown in the illustration were energized and operating properly, which of the devices listed would be open? Illustration EL-0007

Official USCG Answer & Rule Citation

Correct Answer: Option C — The start push-button

Momentary contact start buttons are normally open (NO) push-buttons. Once the motor is running and sealed in by the auxiliary contact, the start push-button returns to its naturally open state.

100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.