Marine Electrical Systems USCG Q#306 (Set 11)

The electrical diagram shown in figure B of the illustration represents what type of DC motor? Illustration EL-0054

USCG Exam Illustration EL-0054
USCG Examination Diagram: Illustration EL-0054
Official USCG Answer & Rule Citation

Correct Answer: Option C — compound-wound DC motor

Figure B displays both series and shunt field windings interacting with the armature, defining a compound-wound DC motor. This configuration provides high starting torque and stable speed characteristics under varying marine loads.

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