In the illustrated motor controller, the motor fails to start. A voltmeter reading between 1 and 5 reads line voltage, while the voltmeter reading between 2 and 5 reads 0 VAC. What is most likely the problem? Illustration EL-0007
Official USCG Answer & Rule Citation
Correct Answer: Option B — an open stop switch contact (when not pushed in)
Under USCG National Maritime Center examination standards, the accepted correct answer is: an open stop switch contact (when not pushed in).
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.