Marine Electrical Systems USCG Question #1194 (Set 40)

Referring to figure "B" of the illustrated control circuit schematic diagram, which of the following statements is true when the motor is running in the forward direction? EL-0011

USCG Exam Illustration EL-0011
USCG Examination Diagram: Illustration EL-0011
Official USCG Answer & Rule Citation

Correct Answer: Option A — The normally open (NO) "F" contacts are closed.

In a standard reversing motor controller, the 'F' (Forward) contactor coil is energized to close its associated normally-open (NO) power contacts. This completes the circuit to the motor in the forward phase sequence. The 'R' (Reverse) contacts remain open to prevent a short circuit between phases during operation.

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