Question
10 pts
The diameters of the suction and discharge pipes of pump are 15 cm and 10 cm, respectively. The discharge pressure is
read by a gage at a point 1.0 m above the centerline of the pump, and the suction pressure is read by a gage 0.6 m below
the centerline. If the pressure gage reads 140 kPa and the suction gage reads a vacuum of 25 cm Hg when gasoline
(SG=0.80) is pumped at the rate of 35 L/s. Find the power delivered to the fluid. Let the atmospheric pressure be 101.325
kPa. Neglect headloss.
Question
Prove that the pump-specific speed denoted as $N_s$ of the homologous machine with the same efficiency remains even in
another planetary system.
15 pts
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