Which fire extinguisher is suitable for Class B fires?

A foam or dry chemical extinguisher is suitable for Class B fires because these types of extinguishers are specifically designed to combat flammable liquids, such as gasoline, oil, and grease. Class B fires involve combustible liquids and gases, and using the correct type of extinguisher is crucial to effectively suppress the fire and prevent it from spreading.

Foam extinguishers work by creating a barrier between the fuel and the air, effectively smothering the flames and preventing re-ignition. Dry chemical extinguishers, on the other hand, release a fine powder that can interrupt the chemical reaction occurring in the fire, thus extinguishing it. Both types are versatile and recommended for effective firefighting in situations that involve flammable liquids, making them the appropriate choice for Class B fires.

While water extinguishers can effectively handle Class A fires involving solid materials, they are not suitable for flammable liquid fires, as water can spread the burning liquid, exacerbating the situation. CO2 extinguishers can be used on Class B fires as well, but they primarily suffocate the fire and are not as effective as foam or dry chemical extinguishers for all types of flammable liquids. Wet chemical extinguishers are specifically designed for