CLOUD COMPUTING
DISASTER RECOVERY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Class A
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Class B
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Class C
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Class D
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Class K
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Detailed explanation-1: -Carbon dioxide fire extinguishers work perfectly on class B fires as carbon dioxide can effectively cut off the oxygen supply. Not only that, but the cold carbon dioxide content of CO2 fire extinguishers also helps to reduce the heat of the flame. However, this kind of extinguisher is only effective for small fires.
Detailed explanation-2: -Foam extinguishers are used on burning liquids such as petrol or diesel fires. They can also be used on solid fuel fires in the same way as water extinguishers. Foam fire extinguishers are actually water based (this is why they can be used on solid fuels) and have a cooling effect.
Detailed explanation-3: -Class B fires involve flammable and combustible liquids such as gasoline, alcohol, oil-based paints, lacquers. Therefore, extinguishers with a B rating are designed to extinguish fires involving flammable and combustible liquids.
Detailed explanation-4: -Class B: Flammable liquids such as alcohol, ether, oil, gasoline and grease, which are best extinguished by smothering.