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Which of the following options will facilitate the achievement of a very high head (say 30 metres) in case of a centrifugal pump? | |
A. | Increasing the impeller speed and the volute area. [Wrong Answer] |
B. | Increasing the number of vanes in the impeller. [Wrong Answer] |
C. | Mounting of two or more impellers in series on a single shaft. [Correct Answer] |
D. | Either of (a), (b) or (c). [Wrong Answer] |