Which type of fire is specifically fought with a dry chemical extinguisher?

The correct response highlights the role of dry chemical extinguishers, which are specifically effective in combating Class D fires involving flammable metals. Class D fires can occur with metals such as magnesium, titanium, and sodium, which require special forms of extinguishing agents to prevent dangerous reactions.

Dry chemical extinguishers contain agents that are designed to smother the flames and cool the surrounding area, making them suitable for Class D scenarios. Unlike other extinguishers, which might react negatively with flammable metals, dry chemical agents can effectively interrupt the combustion process without exacerbating the situation.

While other classes of fires are fought with different types of extinguishing agents—such as foam extinguishers for Class B fires or water for Class A fires—Class D is unique in requiring specific extinguishing methods to ensure safety and effectiveness.