Question 791 Deck Safety

A) The correct answer is B) Foam conducts electricity. Explanation: Foam is an effective firefighting agent for Class B (flammable liquid) fires, as it forms a blanket that cuts off the oxygen supply and cools the fuel. However, foam is an electrical conductor and should not be used on energized electrical equipment or fires involving live electrical sources. This is because the foam could conduct electricity and create a shock hazard. Therefore, statement B is the only true statement among the options provided. The other options are incorrect: A) Directing foam at the base of the fire is the correct technique for effective fire extinguishment, but this is not specific to foam. C) Foam is effective on both flowing and non-flowing flammable liquids. D) Foam can be used to extinguish Class A (ordinary combustible) fires as well as Class B fires, not just Class A.