Firemen shut off the electricity supply for the area before using water hoses to put off fire. Why?
To prevent the fireman from being electrocuted because ordinary water is a conductor of electricity
To prevent electrical devices from being spoilt
To reduce electricity usage
To prevent the fire from spreading
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(a) to prevent the fireman from being electrocuted because ordinary water is a conductor of electricity.
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Explanation:
Water is a good conductor of electricity. ... Therefore, in case of a fire, the firemen shut off the main electrical supply for the area before they use the water hoses.
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