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

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

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Hydraulics and Fluid Mechanics in ME
The hammer blow in pipes occurs when

The flow of fluid through the pipe is suddenly brought to rest by closing of the valve
There is excessive leakage in the pipe
The flow of fluid through the pipe is gradually brought to rest by closing of the valve
The pipe bursts under high pressure of fluid

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