Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of motion
Newton's law of resistance
Newton's law of viscosity
Newton's law of cooling

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Hydraulics and Fluid Mechanics in ME
The purpose of a surge tank is

To eliminate water hammer possibilities
To regulate flow of water to turbines by providing necessary retarding head of water
To control the pressure variations due to rapid changes in the pipe line flow
All of these

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