What type of fire is most commonly associated with combustible metals?

The correct answer is related to the classification of fires based on the materials involved. Class D fires are specifically associated with combustible metals such as magnesium, titanium, and sodium. These metals burn at extremely high temperatures and can react violently with water or air. Firefighting techniques for Class D fires often involve using dry powder agents specifically designed to extinguish metal fires, as traditional methods like water can exacerbate the situation.

Understanding the nature of Class D fires helps firefighters identify the necessary precautions and methods to safely combat these types of incidents. In contrast, Class A fires involve ordinary combustibles like wood, paper, and cloth; Class B fires pertain to flammable liquids; and Class C fires involve energized electrical equipment. Each classification has its own recommended extinguishing methods and risks, emphasizing the importance of recognizing combustible materials in a fire situation.