Which type of fire involves combustible metals?

The correct answer is based on the classification of fires according to the materials that are burning. Class D fires involve combustible metals, which can include substances such as magnesium, titanium, and sodium. These metals burn at high temperatures and can react violently with water or air, making them particularly hazardous to extinguish.

Class D fire extinguishment methods often require specialized extinguishing agents, such as dry powder agents specifically designed for metal fires, rather than common methods used for other classes of fires. This distinction is crucial for fire safety personnel to effectively address the unique challenges posed by Class D fires and to ensure proper safety protocols are followed when dealing with these materials.

In contrast, Class A fires involve ordinary combustible materials like wood and paper, Class B fires pertain to flammable liquids, and Class C fires deal with energized electrical equipment. Each class has distinct properties and appropriate methods for extinguishment, highlighting the importance of understanding these classifications in firefighting and safety operations.