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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

0.6
0.4
0.83
0.3

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

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Hydraulics and Fluid Mechanics in ME
An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called

Weir
Notch
None of these
Orifice

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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
None of these
1
0.25

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Hydraulics and Fluid Mechanics in ME
Unit of surface tension is

Velocity/unit area
It has no units
Both of the above
Energy/unit area

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

atmospheric pressure
pressure in pipes, channels etc
very low pressure
difference of pressure between two points

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