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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Water is _________ liquid.

An incompressible
None of these
Both A and B
A compressible

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Hydraulics and Fluid Mechanics in ME
The total pressure on the top of a closed cylindrical vessel of radius (r) completely filled up with liquid of specific weight (w) and rotating at (ω) rad/s about its vertical axis, is

π w ω² r²/2g
π w ω² r³/4g
π w ω² r⁴/4g
π w ω² r²/4g

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Hydraulics and Fluid Mechanics in ME
General energy equation holds for

turbulent flow
steady flow
laminar flow
non-uniform flow

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Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Surface tension
Compressibility
Viscosity
Capillarity

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Hydraulics and Fluid Mechanics in ME
An air vessel is provided at the summit in a siphon to

Increase discharge
Increase velocity
Avoid interruption in the flow
Maintain pressure difference

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Hydraulics and Fluid Mechanics in ME
For laminar flow in circular pipes, the Darcy’s friction factor f is equal to

32/ Re
64/ Re
16/Re
None of these

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