As shown in the illustration of an electrically operated watertight door controller, what type of motor is used to open and close the watertight door? EL-0115
Official USCG Answer & Rule Citation
Correct Answer: Option C — Series wound DC motor
Under USCG National Maritime Center examination standards, the accepted correct answer is: Series wound DC motor.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.