EXAMIANS
Turbidity of raw water is a measure of
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The factor affecting per capita demand, is
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The yield of a rapid gravity filter as compared to that of slow sand filter, is
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According to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for
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For determining the velocity of flow of underground water, the most commonly used non-empirical formula is
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To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 √Q, the water horse power of the pump is
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The maximum depth of sedimentation tanks is limited to
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Surcharge storage zone of a reservoir, is
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Time of concentration
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Specific capacity or yield of wells, is generally expressed, as
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