Dry Chemical extinguishers are rated for which classes?

Dry Chemical extinguishers are rated for which classes?

• A. A, B, or C
• B. B only
• C. C only
• D. A only

Answer: (A)

Dry chemical extinguishers are versatile because the powder interrupts the flame’s chemistry and blankets the fuel, cutting off the chain reactions that keep the fire going. This makes them effective on ordinary combustibles (A), flammable liquids (B), and energized electrical equipment (C). The powder’s non-conductive nature also allows it to suppress live electrical fires without creating a conductive path. For that reason, these extinguishers are rated for A, B, and C fires, offering broad protection in a single tool.

Dry chemical extinguishers are versatile because the powder interrupts the flame’s chemistry and blankets the fuel, cutting off the chain reactions that keep the fire going. This makes them effective on ordinary combustibles (A), flammable liquids (B), and energized electrical equipment (C). The powder’s non-conductive nature also allows it to suppress live electrical fires without creating a conductive path. For that reason, these extinguishers are rated for A, B, and C fires, offering broad protection in a single tool.