Marine Electrical Systems USCG Q#203 (Set 7)

The wet-cell storage batteries shown in the illustration are connected in what configuration? Illustration EL-0070

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

Correct Answer: Option D — parallel

Parallel configurations connect all positive terminals together and all negative terminals together, preserving the individual cell voltage while multiplying the available amp-hour capacity. IEEE 45 and 46 CFR Subchapter J regulate battery room wiring arrangements to ensure adequate current delivery for shipboard emergency systems.

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