Marine Electrical Systems USCG Question #602 (Set 21)

Which of the following statements concerning figure "6" of the illustration is true? EL-0026

USCG Exam Illustration EL-0026
USCG Examination Diagram: Illustration EL-0026
Official USCG Answer & Rule Citation

Correct Answer: Option C — The symbol represents a switch using maintained contact with "either/or" logic.

Figure "6" illustrates a maintained-contact switch utilizing either/or logic, common in selector and transfer switch applications. IEEE 45 schematic conventions dictate how multi-position control devices are documented for shipboard electrical distribution systems governed by 46 CFR Subchapter J.

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