engineering recuitment UKPSC AE Civil 2021 Mock Test (Re-Exam) Environmental Engineering Design of Sewer
Which one of the following is the merit of combined sewer system ?
1
Rain water dilutes the sewage, therefore, it can be easily and economically treated.
2
Initial cost is high as compared with separate system.
3
If the whole sewage is to be disposed off by pumping, it is uneconomical.
4
During heavy rains, the overflowing of sewers will endanger the public health