The performance characteristics of a certain centrifugal pump having a 9-in.-diameter impeller and operating at 1750 rpm are determined using an experimental setup similar to that shown in Fig. 12.10. The following data were obtained during a series of tests in which z2 - z1 - 0, V2 =V1, and the fluid was water.
![2463_7e36359d-48ba-491e-8609-7a6eed8fd233.png](https://secure.tutorsglobe.com/CMSImages/2463_7e36359d-48ba-491e-8609-7a6eed8fd233.png)
Based on these data, show or plot how the actual head rise, ha, and the pump efficiency, η, vary with the flowrate. What is the design flowrate for this pump?