Answer :
Final answer:
Class B fire extinguishers are used to fight grease and oil fires. They are designed for fires involving flammable and combustible liquids, and they operate by smothering the fire.
Explanation:
The class of fire extinguisher used to fight grease and oil fires is Class B. Fire extinguishers are classified based on the type of fire they are designed to extinguish. Class B fire extinguishers are specifically designed for fires involving flammable and combustible liquids or gases like grease, oil, and gasoline. They work by smothering the fire and cutting off its oxygen supply.
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