What are the pumps that operate by alternately filling a cavity and then displacing a given volume of liquid called?

Civil Engineering : Waste Water Engineering - Quiz(MCQ)

Rotating pump

Centrifugal pump

Roto-dynamic pump

Positive displacement pump

Correct Answer : Positive displacement pump

Explanation : A positive displacement pump alternately fills a cavity and then displaces a given volume of liquid. For each cycle, this pump delivers a constant volume of liquid independent of discharge pressure or head.

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.