Motor Plants & Auxiliary Boilers USCG Question #1337 (Set 26)

The speed of the camshaft in a two-stroke cycle diesel engine, running at 950 RPM, is __________.

Official USCG Answer & Rule Citation

Correct Answer: Option B — 950 RPM

In a two-stroke cycle diesel engine, the camshaft turns at the same speed as the crankshaft because every cylinder fires on every revolution, requiring one complete camshaft revolution per crank revolution.

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