EXAMIANS
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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As per IS : 1172-1963, water required per head per day for average domestic purposes, is
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By boiling water, hardness can be removed if it is due to
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Asbestos pipes are
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The yield of a rapid gravity filter as compared to that of slow sand filter, 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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Average annual rainfall at any station is the average of annual rainfall over a period of
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If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is
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Surcharge storage zone of a reservoir, is
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If the chosen diameter of a pipe, is less than the economical diameter
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