Which class is associated with flammable and combustible liquids?

Which class is associated with flammable and combustible liquids?

• A. Class 3
• B. Class 2
• C. Class 1
• D. Class 4

Answer: (A)

Understanding how fires are categorized for response helps you choose the right tools and tactics. In this framework, fires involving flammable and combustible liquids are placed in Class 3. These liquids—gasoline, solvents, fuels, certain paints—ignite and flow in ways that are different from solid combustibles or electrical fires. Knowing it’s Class 3 tells you to use extinguishing agents effective on liquids, such as foam, dry chemical, or CO2, and to avoid water alone, since water can spread the liquid and the fire. This classification guides the suppression approach, safety precautions, and containment needed for these incidents.

Understanding how fires are categorized for response helps you choose the right tools and tactics. In this framework, fires involving flammable and combustible liquids are placed in Class 3. These liquids—gasoline, solvents, fuels, certain paints—ignite and flow in ways that are different from solid combustibles or electrical fires. Knowing it’s Class 3 tells you to use extinguishing agents effective on liquids, such as foam, dry chemical, or CO2, and to avoid water alone, since water can spread the liquid and the fire. This classification guides the suppression approach, safety precautions, and containment needed for these incidents.