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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The total energy line lies over the centre line of the pipe by an amount equal to

Pressure head + velocity head
Pressure head - velocity head
Velocity head
Pressure head

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Hydraulics and Fluid Mechanics in ME
The process of diffusion of one liquid into the other through a semi-permeable membrane is called

osmosis
viscosity
cohesion
surface tension

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Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the Newtonian fluid is

Inverse type
Parabolic
Hyperbolic
Linear

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Hydraulics and Fluid Mechanics in ME
The motion of air mass in a tornado is a

forced vortex at center and free vortex outside
free vortex at center and forced vortex outside
forced vortex motion
free vortex motion

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Hydraulics and Fluid Mechanics in ME
In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by

Some other alterations in the impeller
Trimming the impeller size to the required size by machining
Designing new impeller
Not possible

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a Piezometer tube is in

N/mm2
Head of liquid
N/m2
All of these

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