Which type of fire extinguisher is suitable for flammable liquids?

Class B fire extinguishers are specifically designed for use on flammable liquid fires, such as those involving gasoline, oil, grease, and paints. These extinquishers typically contain agents that can smother the fire or disrupt the chemical reaction that sustains it, making them effective for suppressing flames produced by combustible liquids.

Class A fire extinguishers, on the other hand, are used primarily for ordinary combustibles like wood, paper, and cloth. Class C fire extinguishers are focused on electrical fires and are safe for use around energized electrical equipment. Class D fire extinguishers, meanwhile, are tailored for fires involving metals, such as magnesium and sodium. Therefore, when dealing specifically with flammable liquids, Class B fire extinguishers are the appropriate choice.