As Chief Engineer of a slow speed diesel propelled vessel operating with constant slip, when considering the effect on the fuel consumption in barrels per mile of a planned increase in operating RPM you utilize which of the following?
Official USCG Answer & Rule Citation
Correct Answer: Option C — fuel consumption varies as the cube of the shaft RPM
Under USCG National Maritime Center examination standards, the accepted correct answer is: fuel consumption varies as the cube of the shaft RPM.
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