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Hydraulics and Fluid Mechanics in ME

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

ω².r²/4g
ω.r/4g
ω.r/2g
ω².r²/2g

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Hydraulics and Fluid Mechanics in ME
In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

Two-third
Three-fourth
Equal to
One-third

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant speed and capacity, the pressure and power vary

Inversely as density
As square of density
Directly as the air or gas density
Inversely as square root of density

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Hydraulics and Fluid Mechanics in ME
The viscosity of water at 20°C is

One stoke
One centipoise
One poise
One centistoke

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Hydraulics and Fluid Mechanics in ME
The shear stress between the two liquid layers is __________ proportional to the distance between two layers.

None of these
Both A and B
Inversely
Directly

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is suitable for small discharge and high heads?

Mixed flow pump
Axial flow pump
Centrifugal pump
Reciprocating pump

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