Question

The impeller in the volute pump is surrounded by _____________

(a) Discharge pipe

(b) Throat

(c) Suction pipe

(d) Volute chamber

This question was addressed to me by my college professor while I was bunking the class.

Question is taken from Centrifugal Pump topic in chapter Pumps and Pumping of Environmental Engineering

Answer 1

Right choice is (d) Volute chamber

For explanation: The impeller in the volute pump is surrounded by a spiral shaped casing called as volute chamber. The shape of the casing is such that the sectional area of flow around impeller increases from the tongue to delivery tube.