Coast Guard Exams
Question 101Motor Plants - QMED70% to pass

In what location is heavy fuel oil kept above the flash point, but below the boiling point of water?

AI Explanation
The correct answer is C) Heavy fuel oil final heater outlet. The heavy fuel oil is kept above the flash point but below the boiling point of water at the final heater outlet. This temperature range is necessary to ensure the fuel is sufficiently heated to be atomized and burned efficiently in the engine, without posing a fire risk. The other options, such as the settling and day tanks or the mixing tank, would not require the fuel to be heated to this specific temperature range.

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