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Fluid Mechanics

Fluid Mechanics
Cd is always __________ Cc.

Greater than
Less than
Either more or less than
Equal to

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Fluid Mechanics
Potential flow is the flow of

Incompressible fluids with no shear
Incompressible fluids with shear
Compressible fluids with shear
Compressible fluids with no shear

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Fluid Mechanics
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant?

Unsteady
Non-uniform
Rotational
Turbulent

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Fluid Mechanics
As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1

Decreases linearly with V
Increases linearly with V
Decreases as V²
None of these

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Fluid Mechanics
Euler's equation of motion is a statement expressing

Newton's first law of motion
Conservation of mass
Conservation of energy
Newton's second law of motion

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Fluid Mechanics
The ratio of actual discharge to theoretical discharge through an orifice is equal to

Cc . Cd
Cc . Cv
Cv . Cd
Cd/Cv

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