Steam Plants (Boilers & Turbines) USCG Question #385 (Set 13)

The component labeled "II", as shown in the illustration is called the __________. Illustration SE-0013

USCG Exam Illustration SE-0013
USCG Examination Diagram: Illustration SE-0013
Official USCG Answer & Rule Citation

Correct Answer: Option B — high speed pinion

Component "II" in marine double reduction gear schematics (SE-0013) directly connects to the turbine rotor output, driving the first reduction gear at high rotational speed and designating it as the high-speed pinion.

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