engineering recuitment KPSC Assistant Engineer Civil Mock Test 2020 Environmental Engineering Design of Sewer
A branch sewer to be designed at the half flow condition for a town for the population of 10000 has an average daily water supply at the rate of 200 lpcd. 80 percent of the water supplied goes to drain. The sewer is designed to carry three times of average discharge. If the branch sewer is laid at the slope of 0.005 and the manning’s roughness coefficient for the sewer material is 0.009, then the suitable diameter of the pipe is _________
1
0.15 m
2
0.25 m
3
0.32 m
4
0.41 m