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Class B fires involve materials such as grease, gasoline, and oil. To extinguish them, use a fire extinguisher labeled as either B:_____ or _______: B: _______.

Answer :

Final answer:

A Class B fire involves flammable liquids like grease, gasoline, and oil. It can be extinguished using either a CO2 or Dry Chemical fire extinguisher that are denoted as Type B extinguishers. These work by smothering the fire, thus depriving it of oxygen.

Explanation:

A Class B fire involves flammable or combustible liquids, including grease, gasoline, and oil. To extinguish these types of fires, you generally need a fire extinguisher that deploys a foam or a dry chemical compound. These classify as either CO2 extinguishers or dry chemical extinguishers. Therefore, for class B fires involving grease, gasoline, or oil, you can use a CO2: B or a Dry Chemical: B fire extinguisher. These extinguishers work by smothering the fire and cutting off the oxygen supply.

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