Question 717 Deck Safety

70% to pass

Which type of portable fire extinguisher is best suited for putting out a Class D fire?

A Dry powder
B Dry chemical
C Foam
D CO2
AI Explanation

You are correct, the answer is A) Dry powder. Dry powder fire extinguishers are the best choice for putting out a Class D fire, which involves combustible metals such as magnesium, titanium, or sodium. Dry powder extinguishers work by creating a barrier between the metal fuel and the oxygen in the air, smothering the fire. The other options (B, C, and D) are not effective for Class D fires, as they do not provide the necessary cooling and insulating properties to safely extinguish these types of fires.

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Official Resources
46 CFR Lifesaving Equipment USCG Marine Safety Center USCG National Maritime Center
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