Engine Safety (Supplementary) USCG Q#756 (Set 9)

Auxiliary diesel engine electric starting motors use __________.

Official USCG Answer & Rule Citation

Correct Answer: Option D — battery power direct current

Auxiliary diesel engine electric starting motors demand massive instantaneous current to overcome high breakout torque, supplied reliably by dedicated heavy-duty lead-acid or nickel-cadmium storage battery banks delivering direct current.

All Engine Safety (Supplementary) Sets Practice Set 9