EXAMIANS
The yield of a rapid gravity filter as compared to that of slow sand filter, is
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Mathamoglobinemia or blue baby disease is caused due to
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Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be
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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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In pressure supply mains, water hammer pressure is reduced by providing
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Aeration of water is done to remove
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The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is
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Pick up the incorrect statement from the following. The underground sources of water, is from
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Time of concentration
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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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