Ex2-The two pumps (n=1800 rpm) each have the following characteristics: h= (100, 90, 80, 60, 40, 20)ft and Q=(0, 110, 180, 250, 300, 340)gpm, are to be used in parallel. They must develop a head h = 35 + 20Q2 What is the flow rate with both pumps operating at 1800 rpm? Ans: 170 gpm

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