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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece is

0.5
0.855
0.707
0.375

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Hydraulics and Fluid Mechanics in ME
Gradually varied flow is

non-steady non-uniform
steady uniform
non-steady uniform
steady non-uniform

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Hydraulics and Fluid Mechanics in ME
Equation of continuity is based on the principle of conservation of

energy
None of these
mass
momentum

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Hydraulics and Fluid Mechanics in ME
The power developed by a turbine is (where H = Head of water under which the turbine is working)

Directly proportional to H3/2
Directly proportional to H1/2
Inversely proportional to H1/2
Inversely proportional to H3/2

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

surface tension
cohesion
viscosity
adhesion

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Hydraulics and Fluid Mechanics in ME
The cavitation in reaction turbines is avoided, to a great extent by

Providing highly polished blades to the runner
Installing the turbine below the tail race level
Using stainless steel runner of the turbine
All of these

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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