HomeUS Firefighter Exam Prep 2026Question 9 of 10
Basic Fire ScienceQuestion 9 / 10

To stop a fire using the fire triangle concept, a firefighter must remove at least:

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✓ Correct answer: A. One of the three sides (heat, fuel, or oxygen) Removing any single side of the fire triangle, heat, fuel, or oxygen, breaks the reaction and extinguishes the fire.

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Topic: Basic Fire Science
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