20 80 120 10.13 Data from tests of a pump with a 12.3-in.-diameter impeller operated at 1450 rpm are Flow rate, Q (cfm) 40 60 100 140 Net positive suction head required, NPSHR (ft) 8.0 8.9 10.3 11.8 12.3 16.9 Develop and plot a curve-fit equation for NPSHR versus volume flow rate in the form NPSHR=a+bQ%, where a and b are constants. If the NPSHA=20 ft, estimate the maximum allowable flow rate of this pump. 20 80 120 10.13 Data from tests of a pump with a 12.3-in.-diameter impeller operated at 1450 rpm are Flow rate, Q (cfm) 40 60 100 140 Net positive suction head required, NPSHR (ft) 8.0 8.9 10.3 11.8 12.3 16.9 Develop and plot a curve-fit equation for NPSHR versus volume flow rate in the form NPSHR=a+bQ%, where a and b are constants. If the NPSHA=20 ft, estimate the maximum allowable flow rate of this pump