High School

Air-pressurized water extinguishers are used for which classes of fire?

A. A only
B. B and C
C. C only
D. K

Answer :

Final answer:

Air-pressurized water extinguishers are used for Class A fires, which include ordinary combustibles. They work by cooling and displacing oxygen. For other fire classes, different types of extinguishers are needed.


Explanation:

Understanding Air-Pressurized Water Extinguishers

Air-pressurized water extinguishers are specifically designed to combat Class A fires, which involve ordinary combustibles like wood, paper, and cloth. These extinguishers work by displacing oxygen and cooling the burning material.

Fire Classifications

  • Class A: Common combustibles
  • Class B: Flammable liquids and gases
  • Class C: Electrical fires

For fires of Class B and C, other types of extinguishers such as foam and dry chemical are recommended. Therefore, the correct option that describes the use of air-pressurized water extinguishers is Class A only.


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