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, every cylinder completes a power stroke once per crankshaft revolution. Consequently, the camshaft rotates at exactly the same speed as the crankshaft, making the camshaft speed 950 RPM for an engine running at 950 RPM.
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