Each Class A extinguisher has an A Rating. Each unit of A Rating provided by the extinguisher will protect ___________ square feet.

Each Class A extinguisher has an A Rating. Each unit of A Rating provided by the extinguisher will protect ___________ square feet.

• A. 2000 square feet
• B. 3000 square feet
• C. 4000 square feet
• D. 1000 square feet

Answer: (B)

Class A ratings reflect the approximate area of ordinary combustibles that an extinguisher can effectively cover, based on standard testing. In this rating system, each unit of A rating corresponds to about 3,000 square feet of protected area. So the question asks for the area per one A rating unit, and the correct value is 3,000 square feet. This means a higher A rating indicates a larger area that the extinguisher can handle, keeping in mind that actual performance depends on factors like fire size, ventilation, and application technique.

Class A ratings reflect the approximate area of ordinary combustibles that an extinguisher can effectively cover, based on standard testing. In this rating system, each unit of A rating corresponds to about 3,000 square feet of protected area. So the question asks for the area per one A rating unit, and the correct value is 3,000 square feet. This means a higher A rating indicates a larger area that the extinguisher can handle, keeping in mind that actual performance depends on factors like fire size, ventilation, and application technique.