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Fluid Mechanics

Fluid Mechanics
For an incompressible fluid, the bulk modulus of elasticity is

1 N
∞ N/m²
5 kg/m³
0 N/m

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Fluid Mechanics
Scale up of agitator design requires

All of these
Geometrical similarity only
Both geometrical and dynamic similarity
Dynamic similarity only

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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

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

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Fluid Mechanics
Terminal velocity is

A fluctuating velocity
A constant velocity with no acceleration
Attained after moving one-half of total distance
None of these

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Fluid Mechanics
As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, μ = fluid viscosity)

1/μ²
μ
1/μ
μ²

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Fluid Mechanics
High specific speed of a pump implies that, it is a/an __________ pump.

None of these
Axial flow
Centrifugal
Mixed flow

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MORE MCQ ON Fluid Mechanics

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