Question

Some fires cannot be put out with water. If water is sprayed onto an oil fire, the oil will float to the top of the water and continue to burn. This can be very dangerous because water can flow quickly, carrying the burning oil with it and spreading the fire. Water should also not be used on fires caused by electrical appliances. The person spraying water might receive an electric shock and be killed. A carbon dioxide extinguisher is the best thing to fight an electrical fire.
ii. How does oil fire undo the effect of water? *
a) oil fire extinguishes immediately because of the cooling temperature.
(b) oil fire extinguishes immediately but after some time it will catch the fire again.
(c) Oil fire does not extinguish because it floats on the top of water and continues to burn
(d) none of the above
iii. Why is it unsafe to throw water on electrical fire? *
(a) Because water will catch the fire
(b) Because it will switch off the electricity
(c) Because it will extinguish small quantity of fire
(d) Because it can give electric shock.​

Answer 1

Answer:

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