The software uses the affinity laws Q_1/Q_2 =n_1/n_2 H_t1/H_t2 =(n_1^2)/(n_2^2 ) to calculate the predicted values of Ht2 at flow rates Q2 and a setting of 60% from the measured values of Ht1 and Q1 and the values n1 = 70 and n2 = 50. Plot a graph of Predicted Head against Predicted Flow Rate. Plot a graph of the measured Total Head against Flow Rate at 60%