Motor Plants & Auxiliary Boilers USCG Question #1477 (Set 30)

The cylinders labeled "B" and "C" in the illustration are used to __________. Illustration MO-0125

USCG Exam Illustration MO-0125
USCG Examination Diagram: Illustration MO-0125
Official USCG Answer & Rule Citation

Correct Answer: Option D — supply the force required to shift the engine camshafts axially to reverse engine rotation

Hydraulic cylinders 'B' and 'C' on direct-reversing marine diesels provide the substantial linear force needed to slide the camshaft axially during the bridge or engineroom reversing maneuver.

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