EXAMIANS
Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be
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The fire demand of a city may be worked out by
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In pressure supply mains, water hammer pressure is reduced by providing
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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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As per IS : 1172-1963, water required per head per day for average domestic purposes, is
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Pick up the incorrect statement from the following. The underground sources of water, is from
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Turbidity of raw water is a measure 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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Surge tanks are used
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The process of passing water through beds of granular materials, is called
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