Marine Electrical Systems USCG Question #991 (Set 33)

What statement is true concerning the 'MS 1' contacts of the master switch shown in the illustration? EL-0102

USCG Exam Illustration EL-0102
USCG Examination Diagram: Illustration EL-0102
Official USCG Answer & Rule Citation

Correct Answer: Option A — They are closed only when the master switch is 'off'.

Under USCG National Maritime Center examination standards, the accepted correct answer is: They are closed only when the master switch is 'off'..

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