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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

More than 2800
Between 2000 and 2800
Less than 2000
None of these

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Hydraulics and Fluid Mechanics in ME
For very high discharge at low pressure such as for flood control and irrigation applications, following type of pump is preferred

Centrifugal
Mixed flow
Axial flow
Reciprocating

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Hydraulics and Fluid Mechanics in ME
A one dimensional flow is one which

takes place in straight lines
is uniform flow
is steady uniform flow
involves zero transverse component of flow

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Hydraulics and Fluid Mechanics in ME
For manometer, a better liquid combination is one having

surface tension is no criterion
high density and viscosity
higher surface tension
lower surface tension

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

x2y
x2-y2
x2 + y2
cosx

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Hydraulics and Fluid Mechanics in ME
The Thomson's turbine is _________ reaction turbine.

A mixed flow
An inward flow
An axial flow
An outward flow

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