... such as wood, paper, cloth, rubber, trash and most plastics. May occur in homes, office buildings, ... Class BFlammable liquids such as gasoline, kerosene, oil, grease, solvents, and gases. Commonly strikes in kitchens, garages, light manufacturing ... electrical equipment. Often occurs in computers, motors, wiring, and appliances; requires a non-conductive extinguishing agent. fire extinguisher ...