Discussion :: Water Supply Engineering
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Pick up the correct statement from the following :
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A.
Water with hardness upto 75 ppm is considered soft
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B.
Water with hardness more than 200 ppm is considered hard
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C.
Water needed for laundaries should contain hardness less than 75 ppm
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D.
To provide taste during drinking, water should possess hardness between 75 to 120
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E.
All the above.
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