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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A turbine develops 10000 kW under a head of 25 meters at 135 r.p.m. Its specific speed is

241.5 r.p.m.
275.4 r.p.m
175.4 r.p.m.
215.5 r.p.m.

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

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

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Hydraulics and Fluid Mechanics in ME
The intensity of pressure on an immersed surface __________ with the increase in depth.

Decreases
None of these
Does not change
Increases

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Hydraulics and Fluid Mechanics in ME
If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will

None of these
tend to move downward and it may finally sink
float
rise until its weight equals the buoyant force

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Hydraulics and Fluid Mechanics in ME
The centre of gravity of the volume of the liquid displaced is called

Centre of pressure
None of the listed here
Centre of buoyancy
Metacentre

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Hydraulics and Fluid Mechanics in ME
A turbine pump is basically a centrifugal pump equipped additionally with

Vaned diffusion casing
Adjustable blades
Backward curved blades
Inlet guide blades

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