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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

H/3
3H/4
H/2
2H/3

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Hydraulics and Fluid Mechanics in ME
The unit speed of the turbine runner is

N/√H
N/H
N/H²
N/H3/2

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Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

midway between rear and front of body
at the extreme rear of body
at the extreme front of body
any where between rear and front of body depending upon Reynolds number

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Hydraulics and Fluid Mechanics in ME
The impeller of a centrifugal pump may have

Any one of these
Volute casing
Vortex casing
Volute casing with guide blades

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m”

at mean sea level
at normal pressure of 760 mm
All listed here
at 4°C temperature

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Hydraulics and Fluid Mechanics in ME
A body floating in a liquid is said to be in neutral equilibrium, if its metacentre

Lies between the centre of buoyancy and centre of gravity
Coincides with its centre of gravity
Lies below its centre of gravity
Lies above its centre of gravity

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