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4. [Tutorial 4, Q5] A fire engine pump develops a head of 50m, i.e. it increases theenergy per unit weight of the water passed through it by 50Nm N?¹. The pumpdraws water from a sump at A through a 150mm diameter pipe in which there is aloss of energy per unit weight due to friction h1 = 5V1^2/2g varying with the meanvelocity V1 in the pipe. The water is discharged through a 75mm nozzle at C, 30mabove the pump, at the end of a 100mm diameter delivery pipe in which there is aloss of energy per un

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