Bunker "C" is classified as a grade __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — E liquid
Under 46 CFR 30.10-22, combustible liquids are classified by flash point. Grade E liquids have a flash point of 150°F or higher. Bunker C, a heavy residual fuel oil, consistently exceeds this threshold, placing it firmly in the Grade E category for regulatory and safety handling purposes.
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