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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In axial flow fans and turbines, fluid enters and leaves as follows

Radially, radially
Axially, axially
Axially, radially
Radially, axially

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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

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

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Say bolt
Engler
Red wood
Orsat

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Hydraulics and Fluid Mechanics in ME
Which of the following is dimensionless?

Specific speed
Specific weight
Specific gravity
Specific volume

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

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

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Hydraulics and Fluid Mechanics in ME
If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is

0.5
0.25
None of these
1

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