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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific speed of a turbine is given by the equation

N√P / H5/4
N√P / H²
N√P / H3/2
N√P / H3

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Hydraulics and Fluid Mechanics in ME
Water is a __________ fluid.

Newtonian
Real
Non-Newtonian
Ideal

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Hydraulics and Fluid Mechanics in ME
In an isothermal atmosphere, the pressure

decreases linearly with elevation
increases exponentially with elevation
varies in the same way as the density
remains constant

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Hydraulics and Fluid Mechanics in ME
The fluid forces considered in the Navier Stokes equation are

gravity, viscous and turbulent
gravity, pressure and turbulent
gravity, pressure and viscous
pressure, viscous and turbulent

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the __________ is called Euler's number.

Elastic force
Viscous force
Surface tension force
Pressure force

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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
Reciprocating
Mixed flow
Axial flow

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