Question

In which of the following filter, water is passed under higher pressure?

(a) Slow sand filter

(b) Rapid sand filter

(c) Dual media filter

(d) Pressure filter

I had been asked this question by my school teacher while I was bunking the class.

My question is from Pressure Filter in section Filtration of Environmental Engineering

Answer 1

Correct answer is (d) Pressure filter

Best explanation: The pressure filter is a type of rapid sand filter kept in a closed container where water is passed under higher pressure.