EXAMIANS
In pressure supply mains, water hammer pressure is reduced by providing
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The maximum depth of sedimentation tanks is limited to
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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 R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level
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The process of passing water through beds of granular materials, is called
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As per IS : 1172-1963, water required per head per day for average domestic purposes, is
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Corrosion of well pipes may not be reduced by
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Surcharge storage zone of a reservoir, is
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Time of concentration
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While determining the yield of open wells by the pumping test
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