Which of the following options will facilitate the achievement of a very high head (say 30 metres) in case of a centrifugal pump?
AEither of A., B. or C.
BIncreasing the number of vanes in the impeller
CMounting of two or more impellers in series on a single shaft
DIncreasing the impeller speed and the volute area
Correct answer
C. Mounting of two or more impellers in series on a single shaft
Explanation
The correct answer is Mounting of two or more impellers in series on a single shaft.