Question

How should a Class D fire be extinguished? Select one: a. By shoveling Class D extinguishing agents onto it b. By dousing it with water c. By directing hose streams onto it d. By using dry chemical extinguishers

Answer 1

A Class D fire, caused by burning metals, should be extinguished using a specifically designed Class D fire extinguisher or by shoveling Class D extinguishing agents onto it. These agents work by smothering the fire and absorbing the heat it needs to keep burning.

Step-by-step explanation:

A Class D fire is characterized by the presence of burning metals. Such fires are unique as common extinguishing methods with water or other types of extinguishers may even intensify the fire. To extinguish a Class D fire, it is needed to use a specially designed Class D fire extinguisher or by shoveling Class D extinguishing agents onto it. The Class D extinguishing agents work by smothering the fire and absorbing the heat the fire requires to sustain itself. A common Class D extinguishing agent is a dry powder, which is not to be confused with the dry chemical extinguisher, which is used for other types of fires but not for Class D fires. Always follow instructions carefully on how to handle flammable chemicals and never expose any chemical to a flame or other heat source unless specifically instructed by your teacher.

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