GWWI Water Distribution Practice Test

Question: 1 / 400

Which class of fire involves metal fires?

Class A fire

Class B fire

Class C fire

Class D fire

The class of fire that involves metal fires is Class D. Class D fires specifically pertain to combustible metals such as magnesium, titanium, potassium, and sodium. These types of fires require special extinguishing agents that are designed to work effectively on metal combustion.

Combustible metals burn at high temperatures and can react violently with water or common fire extinguishing materials; thus, they require unique fire suppression methods, often using dry powder agents that smother the fire without causing a hazardous reaction. Understanding the nature of Class D fires is crucial for appropriate fire safety measures and response strategies in environments where these metals are used or stored.

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