Which extinguisher is known as the 'multi-purpose' extinguisher?

The dry powder extinguisher is often referred to as the 'multi-purpose' extinguisher because it is effective against a wide range of fire types. It can be used on flammable solids (such as wood and paper), flammable liquids (like petrol and paint), and gaseous fires. This versatility makes it suitable for various environments, including industrial settings and workshops where multiple types of combustible materials may be present.

In contrast, other extinguishers have more specific uses. For example, water extinguishers are primarily effective on solid combustibles but not on flammable liquids or electrical fires. Foam extinguishers are designed mainly for liquid fires and can be used on solids to some extent, but they are not classed as multi-purpose. Carbon dioxide extinguishers are suitable for electrical fires and some liquid fires, but they do not effectively combat fires involving solid materials. Understanding the specific applications of each type of extinguisher is critical for effective fire safety management and ensuring appropriate responses in case of a fire.