Question 794 Deck Safety

The correct answer is C) A and B. Portable-foam fire extinguishers are designed for use on Class A (ordinary combustible) and Class B (flammable liquid and gas) fires. They are not effective on Class C (energized electrical) fires. The other options are incorrect because: A) A and C is incorrect, as foam extinguishers are not suitable for energized electrical (Class C) fires. B) B and C is incorrect, as foam extinguishers are not effective on energized electrical (Class C) fires. D) A, B, and C is incorrect, as foam extinguishers are not suitable for energized electrical (Class C) fires.