Downsizing equipment for cost-cutting measures need to be done with careful consideration on its effectiveness. An engineer in a research and development department of a pump manufacturer company, you are tasked to design a new scale-down pump of an existing pump. The existing pump has impeller diameter at 10 cm and its performance data at one operating condition is shown in TABLE Q3. TABLE Q3: Performance data for existing pump at 1800 rpm at room temperature Volume Flow rate Head (cm) Pump Efficiency (%) (cm/s) 100 360 34 200 370 56 300 350 71 400 340 78 500 300 83 600 190 65 700 108 37 The new scale-down pump needs to be designed with its best efficiency point (BEP) occur at operating condition at volume flow rate of any value between 199 cm/s - 299 cm3/s and at head of of any value between 100 cm - 199 cm for pumping liquid R-12. As an engineer, you are tasked to perform the scaling analysis and specify the parameter at its BEP point. [30 marks)