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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a curve, is called

One-dimensional flow
Three-dimensional flow
Four-dimensional flow
Two-dimensional flow

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Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

zero
minimum
non-zero finite
maximum

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Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and buoyancy force
viscous force and inertial force
inertial force and gravity
pressure force and inertial force

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Hydraulics and Fluid Mechanics in ME
An ideal flow of any fluid must satisfy

Newton’s law of viscosity
boundary layer theory
continuity equation
Pascal law

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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
0.3
0.83
0.4

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Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When the metacentre is above e.g.
When its meatcentric height is zero
Metacentre has nothing to do with position of e.g. for determining stability
When its e.g. is below its center of buoyancy

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