The performance characteristics of a certain centrifugal pump having a 9-in.-diameter im...

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. 11.11. The following data were obtained during a series of tests in which z₂ - z₁ = 0, V₂ = V₁, and the fluid was water.

Based on these data, show or plot how the actual head rise, h_p, and the pump efficiency, η, vary with the flowrate. What is the design flowrate for this pump?