Question 29 of 30
Which statement about firefighting foam is TRUE?
A
A) Foam conducts electricity.
B
B) To be most effective, foam should be directed at the base of the fire.
C
C) Foam is most effective on burning liquids which are flowing.
D
D) Foam can ONLY be used to extinguish class A fires.
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Answer & Explanation
The correct answer is Option C: C) Foam is most effective on burning liquids which are flowing..
Foam creates a seal over the surface of burning liquids, making it highly effective for running fuel fires. It separates the fuel from oxygen, preventing reignition and effectively suppressing vapors.