For a gasoline fire, which type of extinguisher should be used?

For a gasoline fire, the use of a Type B extinguisher is appropriate because it is specifically designed to combat flammable liquids, including gasoline, oil, and greases. Type B extinguishers contain agents that can extinguish burning liquids by smothering the fire and preventing oxygen from sustaining the combustion process. These agents can effectively disrupt the chemical reaction occurring in the flame of burning flammable liquids, which is crucial for safely extinguishing the fire.

Type A extinguishers are geared towards ordinary combustibles like wood and paper, while Type C extinguishers are meant for electrical fires. Type D extinguishers are used for combustible metals, which are not relevant in the case of a gasoline fire. Therefore, selecting a Type B extinguisher is essential for effectively and safely managing a gasoline fire situation.