Which extinguisher type is used for fires involving flammable liquids such as solvents and oils?

Which extinguisher type is used for fires involving flammable liquids such as solvents and oils?

• A. Type A
• B. Type C
• C. Type B
• D. Type K

Answer: (C)

Fires involving flammable liquids require extinguishers designed specifically for liquids. These are Class B extinguishers, made to handle fuels like solvents and oils. They work by smothering the flame and cooling the liquid, which helps prevent rekindling. Using water on a flammable liquid fire is dangerous because the liquid can spread and flare up, making the situation worse. Common agents for Class B include dry chemical, foam, and CO2, all chosen for their ability to interrupt the fire without reinforcing the fuel. It’s also worth noting that Type K extinguishers are intended for cooking fats and oils in kitchens, a different scenario from general solvents and oils. So, for fires involving solvents and oils, the appropriate choice is a Class B extinguisher.

Fires involving flammable liquids require extinguishers designed specifically for liquids. These are Class B extinguishers, made to handle fuels like solvents and oils. They work by smothering the flame and cooling the liquid, which helps prevent rekindling. Using water on a flammable liquid fire is dangerous because the liquid can spread and flare up, making the situation worse. Common agents for Class B include dry chemical, foam, and CO2, all chosen for their ability to interrupt the fire without reinforcing the fuel. It’s also worth noting that Type K extinguishers are intended for cooking fats and oils in kitchens, a different scenario from general solvents and oils. So, for fires involving solvents and oils, the appropriate choice is a Class B extinguisher.