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Fluid Mechanics

Fluid Mechanics
The dimension of kinematic viscosity is

L²T⁻¹
ML⁻²T⁻¹
ML⁻²T⁻²
None of these

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Fluid Mechanics
The Stoke's stream function applies to the

Ideal/non-viscous fluids only
Cases of axial symmetry
Irrotational flow only
None of these

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Fluid Mechanics
Ratio of inertial forces to surface tension forces is called the __________ number.

Mach
Froude
Euler
Weber

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Fluid Mechanics
The head loss in turbulent flow in a pipe varies

As velocity
Inversely as the velocity
Inversely as the square of diameter
As (velocity)²

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Fluid Mechanics
The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the

Square of particle size
All of these
Difference in the densities of the particle & fluid
Inverse of fluid viscosity

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Fluid Mechanics
Prandtl mixing length is

A universal constant
Zero at the pipe wall
Applicable to laminar flow problems
None of these

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