Marine Electrical Systems USCG Question #345 (Set 12)

As shown in the illustration, the change-over switch is what type of device? Illustration EL-0058

USCG Exam Illustration EL-0058
USCG Examination Diagram: Illustration EL-0058
Official USCG Answer & Rule Citation

Correct Answer: Option A — double-pole, double-throw switch

A double-pole, double-throw (DPDT) switch controls two separate electrical circuits simultaneously, routing each input between two distinct alternative output paths, commonly utilized in marine transfer and change-over applications.

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