What is classified as a combustible liquid?
Official USCG Answer & Rule Citation
Correct Answer: Option C — Tetraethylene glycol
Under 46 CFR definitions, combustible liquids have a flashpoint at or above 80°F. Tetraethylene glycol exhibits a high flashpoint fitting this regulatory classification, whereas volatile solvents like carbon tetrachloride, ethyl alcohol, and acetaldehyde possess significantly lower flashpoints.
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