8. A pump operating at 2400 rpm must be selected to pump 12 ft³/s with H=256 ft.
a. What is the specific speed and pump type?
b. If conditions change such that the pump has to pump 24 ft³/s with H=128 ft
using the same pump, what shaft speed should be selected?
c. If a 1/10 scale model of the pump is tested in the laboratory, using a speed of
2400 rpm, what discharge ratio (model to prototype) should be used?