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Fluid Mechanics

Fluid Mechanics
Dimension of kinematic viscosity is

L² . T⁻¹
MLT⁻¹
L² . T⁻²
L²T

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Fluid Mechanics
In laminar flow through a round tube, the discharge varies

Inversely as the pressure drop
As the square of the radius
Linearly as the viscosity
Inversely as the viscosity

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Fluid Mechanics
Lower BWG means __________ of the tube.

Lower cross-section
Outer diameter
Inner diameter
Lower thickness

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Fluid Mechanics
Power number is the ratio of

Inertial stress to drag stress
Inertial stress to gravitational stress
Drag stress to inertial stress
Gravitational stress to drag stress

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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
μ²
1/μ
μ

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Fluid Mechanics
The ratio of inertial forces to viscous forces is called the __________ number.

Weber
Mach
Froude
Reynold

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MORE MCQ ON Fluid Mechanics

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