Which type of hazardous material would require a Class B fire extinguisher?

• A. Flammable gases
• B. Flammable liquids
• C. Combustible solids
• D. Electrical equipment

Answer: (B)

A Class B fire extinguisher is specifically designed to combat fires involving flammable liquids and gases. These materials have unique combustion properties that require extinguishing agents capable of suffocating flames and preventing the spread of the fire.

Flammable liquids, such as gasoline, oil, and solvents, can ignite and spread rapidly, making it crucial to use an extinguisher that effectively targets the type of fire that could arise from these substances. Class B extinguishers often use foam, dry chemical agents, or CO2 to put out fires by cutting off the fire’s oxygen supply or diminishing the heat.

While flammable gases, combustible solids, and electrical equipment can also present fire hazards, the Class B fire extinguisher is tailored to specifically address the challenges posed by flammable liquids, which is why it’s considered the appropriate choice in this scenario.