Discussion :: UPSC Civil Service Exam Questions
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Which one of the following statements is NOT correct ?
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A.
In combined sewerage system, one set of sewers is laid for both sanitary sewage and storm water.
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B.
In separate system, the design of sewage system is economical
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C.
In separate system, self cleaning velocities are not available and occasional flushing is required.
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D.
As the sewage is diluted by storm water in combined sewage system, cost of treatment is low.
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