Civil Engineering :: Water Supply Engineering
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Asbestos pipes are joined by means of
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Abyssinian tube well is a special type of
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Chlorination of water does not remove
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To remove very fine suspended particles from water, the method adopted is
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Velocity of flow of water in plain sedimentation water tank, is normally kept
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The most important and widely used tube well in India, is
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Pick up the correct statement from the following :
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The maximum permissible chloride content in treated water of public water supplies should not exceed
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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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A.
The precipitation during its travel in atmosphere dissolves certain gases
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B.
Rain water which percolates through the ground, is free from suspended materials
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C.
Under ground water may dissolve minerals and salts present in the earth's layers
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D.
Small quantities of iron, calcium and magnesium dissolved in water, may be useful for human health
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E.
All the above.
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