Question

In case of fire,before the fireman uses the water hoses,they shut off the main electrical supply for the area

Answer 1

In case of fire,before the fireman uses the water hoses,they shut off the main electrical supply for the area since water is a good conductor of electricity and hence the fireman may get an electric shock.

Answer 2

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Answer:

In case of a fire, before the firemen use the water hoses, they shut off the main electrical supply for the area because water sprayed from the hose might conduct electricity which may come in contact with the electrical appliances which increases the chance of electricity passing through wire. This may hurt the fireman.