Answer :
Final answer:
Class B fire extinguishers are designed for fires involving flammable liquids like gasoline and kerosene. They work by using foam or fluorinated solutions that spread across the surface, cutting off oxygen to extinguish the fire. Safety is critical when handling such fuels due to their highly flammable vapor.
Explanation:
Class B fire extinguishers are suitable for fires involving flammable liquids such as gasoline and kerosene. The reason for this is that these fires involve liquid fuels that can quickly spread if not properly extinguished. Extinguishers designed for Class B fires typically use a foam or fluorinated solution that can spread across the surface of the fuel, cutting off the supply of oxygen and thereby extinguishing the fire. Foaming agents are often noted for their effectiveness in fighting large-scale fires of organic liquids.
It is crucial to understand that while gasoline and kerosene are fossil fuels used commonly for their energy content, they must be handled with care due to their flammability. A safety aspect to consider is that although gasoline burns, the hazard primarily comes from its vapor when mixed with air, which can ignite and cause a fire. Therefore, proper safety measures, including the use of the correct type of fire extinguisher, are vital in preventing and combating fires caused by these substances.
