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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of bulk modulus of a fluid is required to determine

Reynold's number
Euler's number
Mach number
Froude's number

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Hydraulics and Fluid Mechanics in ME
The motion of air mass in a tornado is a

forced vortex motion
free vortex motion
free vortex at center and forced vortex outside
forced vortex at center and free vortex outside

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Hydraulics and Fluid Mechanics in ME
When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

√2gH
0.5 a. √2gH
0.855 a. √2gH
0.707 a. √2gH

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Hydraulics and Fluid Mechanics in ME
The gross or total head of the turbine is the ___________ of the water levels at the head race and tail race.

Sum
Product
Difference
None of these

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Hydraulics and Fluid Mechanics in ME
For 450 m head of water, _________ shall be used.

Francis turbine
Pelton wheel
Kaplan turbine
None of these

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Hydraulics and Fluid Mechanics in ME
Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow.

Product
Ratio
Sum
Different

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