Correct option is A
Fires caused by flammable liquids such as petrol, diesel, oil, grease, alcohol, and solvents fall under Class B fires. These fires require Class B fire extinguishers, which work by cutting off oxygen or suppressing vapors to extinguish the fire.
· Foam (AFFF) extinguishers and Carbon Dioxide (CO₂) extinguishers are commonly used for Class B fires.
· Dry Chemical Powder (DCP) extinguishers can also be used for liquid fires in some cases.
· Water-based extinguishers should never be used on Class B fires, as water can spread the flammable liquid.
Fire Classifications and Extinguishers:
· Class A: Ordinary combustibles (wood, paper, cloth) → Water or Foam extinguishers.
· Class B: Flammable liquids (petrol, diesel, oils) → Foam, CO₂, or Dry Powder extinguishers.
· Class C: Flammable gases (LPG, methane) → Dry Powder extinguishers.
· Class D: Combustible metals (magnesium, sodium) → Special Dry Powder extinguishers.
· Class E: Electrical fires → CO₂ or Dry Powder extinguishers.
