An extinguisher rated 10-B:C is appropriate for which kinds of fires?

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Multiple Choice

An extinguisher rated 10-B:C is appropriate for which kinds of fires?

Understanding extinguisher ratings helps you know what fires it can handle. The B rating covers flammable liquids such as gasoline, oils, and solvents, with the number indicating the approximate size of a fire (in square feet) it can control under standardized test conditions. The C rating means the extinguisher is suitable for electrical fires and is nonconductive, safe to use on energized equipment. When an extinguisher carries both ratings, as in 10-B:C, it can be used on either type of fire—flammable liquids or energized electrical fires. It is not intended for ordinary combustibles (Class A fires like wood or paper), which would require an A or ABC-rated extinguisher. So this extinguisher is appropriate for electrical and flammable liquid fires.

Understanding extinguisher ratings helps you know what fires it can handle. The B rating covers flammable liquids such as gasoline, oils, and solvents, with the number indicating the approximate size of a fire (in square feet) it can control under standardized test conditions. The C rating means the extinguisher is suitable for electrical fires and is nonconductive, safe to use on energized equipment. When an extinguisher carries both ratings, as in 10-B:C, it can be used on either type of fire—flammable liquids or energized electrical fires. It is not intended for ordinary combustibles (Class A fires like wood or paper), which would require an A or ABC-rated extinguisher. So this extinguisher is appropriate for electrical and flammable liquid fires.

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