Question 23 of 30
Which extinguishing agent is most likely to allow reflash as a result of not cooling the fuel below its ignition temperature?
A
Aqueous film-forming foam (AFFF)
B
CO2
C
Water fog stream
D
Dry chemical powder mix
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Answer & Explanation
The correct answer is Option B: CO2.
CO2 is a gaseous extinguishing agent that works by displacing oxygen and cooling. However, it does not effectively cool the burning fuel below its ignition temperature, making reflash a significant risk once the CO2 disperses.