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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The upper surface of a weir over which water flows is known is

weir top
crest
nappe
sill

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for the fans having constant wheel diameters, the power demand varies

Square root of fan speed
Cube of fan speed
Directly as fan speed
Square of fan speed

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Hydraulics and Fluid Mechanics in ME
Which of the following velocity potentials satisfies continuity equation ?

x2-y2
x2y
cosx
x2 + y2

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a curve, is called

Three-dimensional flow
Two-dimensional flow
Four-dimensional flow
One-dimensional flow

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

Full
Partially
None of these
Free

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Hydraulics and Fluid Mechanics in ME
According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain.

None of these
Directly proportional
Inversely proportional
Equal to

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