What is the spacing of manholes for pipe diameter of greater than 2 m?

Civil Engineering : Waste Water Engineering - Quiz(MCQ)

45-90 m

90-150 m

150-200 m

300 m

Correct Answer : 300 m

Explanation : For smaller sewers that are of pipe diameter less than 0.9 m, the spacing given in between manholes is 45 m. In case of pipe diameter of sewers greater than 2 m, the spacing is 300 m.

Recently Updated in Waste Water Engineering Questions

What is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of the water quality called?

Algae growth

Eutrophication

Denitrification

Nitrification

Correct Answer : Option (B) : Eutrophication

Explanation : Eutrophication is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of water quality. The untreated wastewater is rich in organic matter which demands oxygen.