Civil Engineering :: Water Supply Engineering
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An ideal sand for filters should be
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The maximum non-verticality of the bore of a well 200 m deep, may be permitted up to
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By adding 1 ml of orthotolidine solution to 100 ml chlorinated water taken after contact period, the residual chlorine makes the colour of solution
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From the surface of reservoir, evaporation may be minimised by sprinkling
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Gravity conduits are generally in the form of
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Pick up the correct statement from the following :
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Pressure relief valves are provided in water mains
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Pick up the incorrect statement from the following :
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The percentage of chlorine in fresh bleaching powder is roughly
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Higher yield may be expected from
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A.
The ratio of the total sediment deposited in the reservoir to the total sediment flowing in the river, is called trap efficiency
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B.
The ratio of the reservoir capacity to the total inflow of water in it, is generally called capacity inflow ratio
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C.
Small capacity reservoirs on large rivers generally, silt less
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D.
Large capacity reservoirs on small rivers generally silt more
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E.
All the above.
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