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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