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Question

______ is the extinguisher used for inflammable material like petrol.

A
Water
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B
CO2
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C
Oil
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D
Dry powder
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Solution

The correct option is B CO2
Some Class-B fires (hydrocarbons, petroleums, and fuels on fire) cannot be efficiently controlled with water. CO2 being heavier than oxygen covers the fire like a blanket. Hence, one of the important factor for fire is cut off and the fire is controlled.

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