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Civil Engineering Objective Questions { Environmental Engineering }



1. Pick up the incorrect statement from the following :
A. The mixture of water and waste products, is called sewage
B. The treated sewage effluents, are generally used for irrigating the crops
C. The process of collecting, treating and disposing off the sewage, is called sewerage
D. The old convergency system was definitely better than water carried sewerage system

2. The sludge does not contain waste water from
A. bath rooms
B. wash basins
C. kitchen sinks
D. toilets.

3.  The water carried sewerage system removes
A. domestic sewage
B. industrial sewage
C. storm sewage
D. all the above.

4.  In a city the ratio of the drainage_ to sewage is 20, the percentage discharge passing through non-monsoon periods, is
A.5
B.10
C.15
D.20

5.  The sewerage system originates from
A. house sewers
B. lateral sewers
C. branch sewers
D. main sewers

6.  The sewer which transports the sewage to the point of treatment, is called
A. house sewer
B. out-fall sewer
C. branch sewer
D. lateral

7.  Pick up the in-correct statement from the following :
A. Manholes are provided in sewer pipes at suitable intervals
B.Catch basins are generally provided in sewers for carrying drainage discharge
C. Inlets are generally provided in all sewers
D. None of these.

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