Which class of fire involves flammable liquids like gasoline?

The correct classification for fires involving flammable liquids such as gasoline is Class B. Class B fires specifically involve combustible and flammable liquids, gases, or greases. These types of fires require specific extinguishing methods different from those used for other classes. For instance, water is not an effective extinguishing agent for Class B fires, as it can spread the flammable liquid and exacerbate the situation. Instead, foam, dry chemical, or carbon dioxide extinguishers are commonly used to suffocate the fire or interrupt the combustion process.

In contrast, Class A fires involve ordinary combustibles like wood, paper, and cloth; Class C fires are related to electrical equipment; and Class D fires pertain to combustible metals. Understanding these classifications is critical for effective firefighting and ensuring safety when responding to various types of fire incidents.