Hydraulics and Fluid Mechanics in ME
In order to avoid cavitation in centrifugal pumps

The delivery pressure should be high
The suction pressure should be high
The delivery pressure should be low
The suction pressure should be low

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Hydraulics and Fluid Mechanics in ME
The discharge through a wholly drowned orifice is given by (where H1 = Height of water (on the upstream side) above the top of the orifice, H2 = Height of water (on the downstream side) above the bottom of the orifice, and H = Difference between two water levels on either side of the orifice)

Q = Cd × bH2 × √(2gh)
Q = Cd × b (H2 - H1) × √(2gh)
Q = Cd × bH × √(2gh)
Q = Cd × bH₁ × √(2gh)

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Hydraulics and Fluid Mechanics in ME
The total energy of a liquid particle in motion is equal to

Kinetic energy - (pressure energy + potential energy)
Potential energy - (pressure energy + kinetic energy
Pressure energy + kinetic energy + potential energy
Pressure energy - (kinetic energy + potential energy)

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