5.15 The flow and head requirements for a particular application are 20 cfs and 100 ft., respectively. Two identical pumps with a rated speed of 1750 rpm are an option. What would be the specific...

Extracted text: 5.15 The flow and head requirements for a particular application are 20 cfs and 100 ft., respectively. Two identical pumps with a rated speed of 1750 rpm are an option. What would be the specific speed and the impeller diameters if the pumps are (a) connected in series and (b) if they are connected in parallel. Ans: (a) N,=3.22 (b) N,=3.22, D=1.22 ft. %3D