A magnesium fire would be classified as a __________.
Official USCG Answer & Rule Citation
Correct Answer: Option D — class D
Magnesium is a combustible metal. Fires involving such materials are classified as Class D. These fires burn at extremely high temperatures and require specialized dry powder extinguishing agents to suppress the reaction. Standard firefighting media like water or CO2 are ineffective and potentially hazardous on metal fires.
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