Question 23 of 30
Portable foam fire extinguishers are designed for use on which classes of fires?
A
Class A and B fires
B
Class B and C fires
C
Class C and D fires
D
Class A and D fires
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Answer & Explanation
The correct answer is Option A: Class A and B fires.
Portable foam fire extinguishers are primarily designed for Class A fires (ordinary combustibles) and Class B fires (flammable liquids). They work by creating a foam blanket that smothers the fire and cools the fuel.