Marine Electrical Systems USCG Question #697 (Set 24)

The individual 12 volt lead-acid batteries, when connected as shown in the illustration, as a battery bank would produce how many volts? EL-0070

USCG Exam Illustration EL-0070
USCG Examination Diagram: Illustration EL-0070
Official USCG Answer & Rule Citation

Correct Answer: Option A — 12 volts

Connecting 12-volt lead-acid batteries in a parallel configuration maintains the system potential at 12 volts while increasing total amp-hour capacity. Per basic DC circuit fundamentals, parallel connections do not sum individual terminal voltages.

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