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| Q.5 | Consider the following statements with respect to centrifugal pumps : S1, S2, S3, and S4. Choose the correct statement (s) S1 : Pumps in series operation allow the head to increase. | |
| Ans | A. S3 and S4 | |
| B. S1 and S3 | ||
| C. S1 and S2 | ||
| D. S2 and S4 |
Correct Ans Provided: B
