Question

How does the foam type fire extinguisher works ?​

Answer 1

Answer:

The foam extinguishes liquid fires by sealing the surface of the liquid, preventing flammable vapour reaching the air and starving the fire of fuel. They are not suitable for use on free flowing liquid fires. Foam extinguishers have a cream label

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Answer 2

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Question:-

How does the foam type fire extinguisher works ?

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Solution:-

⟹ At airports and petrol pumps, the foam type fire extinguisher is used which is based on the principle of smothering the fire. In this extinguisher, sodium bicarbonate contains Turkey red oil. When it is operated, carbon dioxide liberated in reaction of dilute sulfuric acid with sodium bicarbonate comes out under pressure in the form of a foam and settles on the fire.

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