You must choose a centrifugal pump to pump a coal slurry. You have determined that the pump must deliver $200 \mathrm{gpm}$ at a pressure of at least $35 \mathrm{psi}$. Given the pump characteristic curves in Appendix H, tell which pump you would specify (give pump size, speed, and impeller diameter) and why. What is the efficiency of this pump at its operating point, what horsepower motor would be required to drive the pump, and what is the required NPSH of the pump? The specific gravity of the slurry is 1.35 .