What are the characteristics of a Class B fire?

Class B fires are characterized by the involvement of flammable liquids and gases. This category includes fires fueled by gasoline, oil, grease, and other substances that can produce flammable vapors. When these materials ignite, they can spread rapidly due to their volatile nature, making them dangerous and requiring specific techniques and agents for extinguishment.

Class B fire extinguishers typically use substances like foam, CO2, or dry chemical agents specifically designed to suppress flames fueled by liquids and gases by either smothering the fire, cooling it down, or interrupting the chemical reaction. Understanding the nature of these fires is crucial for effective firefighting strategies and ensuring safety in emergency situations.

The other options pertain to different classifications of fire: electrical equipment fires are classified as Class C, fires involving flammable solids fall under Class A, and fires involving cooking materials are often classified as Class K. Therefore, recognizing that Class B fires specifically involve flammable liquids and gases is essential for proper identification and response in firefighting scenarios.