Which of the following accurately describes a Class D fire?

A Class D fire specifically refers to fires that involve combustible metals. These types of metals can include magnesium, aluminum, potassium, sodium, and other reactive metals that burn at very high temperatures and can react violently with water. This makes Class D fires particularly dangerous, as standard fire-fighting methods that involve water are ineffective and can exacerbate the situation. The correct identification of a Class D fire is crucial for effective firefighting and safety measures, as special extinguishing agents are needed to put out these fires safely.

The other fire classes focus on different materials that are not classified under Class D. For instance, fires caused by electrical equipment fall under Class C, while flammable liquids are categorized as Class B fires. Fires related to cooking materials, typically from fats or oils, are classified as Class K. This differentiation is vital for ensuring that the right type of fire extinguisher or suppression method is used to combat each fire type effectively.