engineering recuitment KPSC Assistant Engineer Civil Mock Test 2020 Environmental Engineering Quality and Characteristics of Sewage
A drain carrying 5 m3/s of wastewater with its BOD of 100 mg/l joins a steam carrying 50 m3/s flow with its BOD of 5 mg/l. What will be the value of the BOD of the combined flow after complete mixing?
1
3.6 mg/l
2
13.6 mg/l
3
33.6 mg/l
4
53.6 mg/l