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QUESTIONS

Chemistry
The most abundant rare gas in the atmosphere is

He
Ar
Xe
Ne

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Hydraulics and Fluid Mechanics in ME
If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be

Unpredictable
Higher than the surface of liquid
The same as the surface of liquid
Lower than the surface of liquid

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Hydraulics and Fluid Mechanics in ME
During the opening of a valve in a pipe line, the flow is

Unsteady
Laminar
Uniform
Steady

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is

ω.r/2g
ω².r²/2g
ω².r²/4g
ω.r/4g

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

Less than
Equal to
More than
None of the listed here

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