Hydraulics and Fluid Mechanics in ME
In a reaction turbine, the draft tube is used

To increase the head of water by an amount equal to the height of the runner outlet above the tail race
To prevent air to enter the turbine
To transport water to downstream
To run the turbine full

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Hydraulics and Fluid Mechanics in ME
The Euler's equation for the motion of liquids is based upon the assumption that

The fluid is non - viscous, homogeneous and incompressible
The flow is continuous, steady and along the stream line
All of these
The velocity of flow is uniform over the section

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