The diameter of the discharge pipe is 7in and that of intake pipe is 9in. The pressure gage at discharge reads 32psi, vacuum gage at the intake reads 12in Hg. If the discharge flow rate is 4ft3/s of water and the brake horsepower is 49, find the efficiency.

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Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.