EXAMIANS
The spacing of bars of perforations of fine screens used for the treatment of sewage, is
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An inverted siphon is designed generally for
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For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of
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If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by
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In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time?
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In sewage having fully oxidised organic matter, the nitrogen exists in the form of
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In case of sewer lines
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Lead acetate test in sewer manhole is done to test the presence of
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The sewer pipe which carries sewage from a building for immediate disposal is
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For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed
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