Applied Hydraulics #$5\mathrm{.}11\mathrm{.}3.$

Select the pump with the highest efficiency from Figures $5\mathrm{.}23$ and $5\mathrm{.}24$ in your book based on the following conditions. A $1,500m-$long, $15-cm$ diameter pipeline $(f=0\mathrm{.}02)$ connects two reservoirs $($elevation difference of $35m).$ Minor losses include entrance, exit, and a globe valve. The design flow is $20\frac{L}{s}.$ Determine the speed, discharge, head, and efficiency for the selected pump.