Which class of fire extinguishers is used for flammable liquids?

The class of fire extinguishers specifically designed for flammable liquids such as gasoline, oil, grease, and paints is Class B. These extinguishers are effective because they can smother the fire and prevent the flames from spreading. They typically use dry chemical agents or foam specifically tailored to extinguish liquid fires by displacing oxygen or cooling the burning liquid.

Class A extinguishers are suitable for ordinary combustibles like wood and paper, Class C extinguishers are meant for electrical fires, and Class K extinguishers are intended for cooking oils and fats. Understanding the classification of fire extinguishers is essential for effective fire suppression and safety.