Which of the following class of fire involves flammable liquids?

The class of fire that involves flammable liquids is Class B. This classification is specifically designed to address fires that are fueled by combustible liquids such as gasoline, oil, or solvents. Class B fires are characterized by the presence of liquid fuels, which can create hazardous and volatile situations, especially when they are ignited.

To effectively extinguish a Class B fire, extinguishing agents such as foam, dry chemical, or carbon dioxide are often used, as water can spread the fire by causing the flammable liquid to float and spread. Understanding the properties and behavior of Class B fires is crucial for effective firefighting and safety measures.