Answer :
Final answer:
For a fire involving combustible materials that smell like gasoline, the Type B fire extinguisher is most effective as it's designed for flammable liquids.
Explanation:
When dealing with a fire that involves ordinary combustible materials that smell like gasoline, the most effective type of fire extinguisher to use would be the Type B fire extinguisher. Type B fire extinguishers are specifically designed for flammable liquids, such as gasoline, which falls under the category of ordinary combustible materials that smell like gasoline. These extinguishers work by creating a fluorinated solution that can spread across the burning surface to extinguish the fire. It's important to choose the correct type of fire extinguisher for the specific class of fire to ensure safety and effectiveness. For example, whereas Type B extinguishers are suitable for fires involving flammable liquids, Type A extinguishers are meant for solid combustibles like wood and paper, and Type C is used for electrical fires.
