Which of the following is a common type of fire extinguisher?

A common type of fire extinguisher includes water extinguishers, chemical extinguishers, and CO2 extinguishers. Each type is designed to handle specific classes of fires effectively.

Water extinguishers are typically used for fires involving ordinary combustibles such as wood, paper, and textiles. They work by cooling the burning material and reducing the heat to below the ignition point.

Chemical extinguishers, often referred to as dry chemical extinguishers, contain a powder that can interrupt the chemical reaction of a fire. They are versatile and can be used for various classes of fires, making them a popular choice in many environments.

CO2 extinguishers are specifically effective for electrical fires and flammable liquids. They work by displacing oxygen in the vicinity of the fire and reducing the ability of the fire to sustain its combustion process.

By recognizing that all three types mentioned fulfill specific roles in fire suppression, it becomes evident why the most comprehensive choice correctly states that all of these are common types of fire extinguishers. Each plays a crucial role in fire safety and firefighting operations.