What type of fires can a multi-purpose dry chemical extinguisher extinguish?

A multi-purpose dry chemical extinguisher is designed to handle multiple classes of fires, specifically Class A, B, and C fires.

Class A fires involve ordinary combustible materials like wood, paper, and cloth. The dry chemical acts by smothering the fire and interrupting the combustion process.

Class B fires involve flammable liquids such as gasoline, oil, and grease. For these fires, the extinguisher works effectively by creating a barrier between the fuel and the oxygen, suppressing the fire’s ability to sustain itself.

Class C fires pertain to electrical equipment. The non-conductive properties of the dry chemical are crucial for safe extinguishment, preventing further electrical hazards while effectively extinguishing the fire.

The key advantage of a multi-purpose dry chemical extinguisher is its versatility, making it suitable for various fire types commonly found in residential and commercial settings. This capability to tackle all three classes of fires confirms the appropriateness of the answer that identifies its use across Class A, B, and C fires.