Each class A extinguisher has an A rating. Each unit of A rating provides protection for how many square feet?

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Prepare for the Plans Examiner Test for Fire and Emergency Services. Use flashcards and multiple choice questions, complete with hints and explanations to ensure you're ready for the exam!

Multiple Choice

Each class A extinguisher has an A rating. Each unit of A rating provides protection for how many square feet?

Explanation:
The main idea is that the Class A rating reflects how much area an extinguisher can protect against ordinary combustibles. In this rating system, each unit of A corresponds to 3,000 square feet of coverage under standard test conditions. So an extinguisher rated 1A would be expected to handle about 3,000 square feet, a 2A unit about 6,000 square feet, and so on. That’s why the amount of area associated with one A rating is 3,000 square feet. The other numbers don’t fit this course’s way of expressing A ratings.

The main idea is that the Class A rating reflects how much area an extinguisher can protect against ordinary combustibles. In this rating system, each unit of A corresponds to 3,000 square feet of coverage under standard test conditions. So an extinguisher rated 1A would be expected to handle about 3,000 square feet, a 2A unit about 6,000 square feet, and so on. That’s why the amount of area associated with one A rating is 3,000 square feet. The other numbers don’t fit this course’s way of expressing A ratings.

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