Question 862 Deck Safety

70% to pass

Which type of portable fire extinguishers is NOT designed for use on flammable liquid fires?

A Dry chemical
B Carbon dioxide
C Foam (stored-pressure)
D Water (cartridge-operated)
AI Explanation

The correct answer is D) Water (cartridge-operated). Water-based fire extinguishers are not designed for use on flammable liquid fires, as water can actually spread and exacerbate these types of fires. In contrast, dry chemical, carbon dioxide, and foam extinguishers are all effective on flammable liquid fires because they smother the fire and prevent reignition. Water extinguishers are primarily intended for Class A (ordinary combustible) fires, while the other options are suitable for both Class A and Class B (flammable liquid) fires.

Ready to test your knowledge?

Take a Deck Safety Practice Exam

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience with progress tracking.

Get the App