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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For pipes, turbulent flow occurs when Reynolds number is

less than 4000
between 2000 and 4000
less than 2000
more than 4000

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Hydraulics and Fluid Mechanics in ME
The pressure of the liquid flowing through the divergent portion of a Venturimeter

Remains constant
Depends upon mass of liquid
Increases
Decreases

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Hydraulics and Fluid Mechanics in ME
In series-pipe problems

the discharge is same through each pipe
the discharge through each pipe is added to obtain total discharge
a trial solution is not necessary
the head loss is same through each pipe

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Hydraulics and Fluid Mechanics in ME
One poise is equal to

10 N-s/m2
100 N-s/m2
0.1 N-s/m2
1 N-s/m2

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

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

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Hydraulics and Fluid Mechanics in ME
Low specific speed of a pump implies it is

Axial flow pump
Centrifugal pump
Mixed flow pump
None of these

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