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Fluid Mechanics

Fluid Mechanics
The dimension of kinematic viscosity is

ML⁻²T⁻¹
L²T⁻¹
ML⁻²T⁻²
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/μ
μ²
1/μ²
μ

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Fluid Mechanics
Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition.

∂/∂s = constant
∂/∂s = 0
∂/∂t = constant
∂/∂t = 0

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Fluid Mechanics
Unsteady non-uniform flow is represented by flow through a/an

Long pipe at constant rate
Long pipe at decreasing rate
Expanding tube at increasing rate
Expanding tube at constant rate

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Fluid Mechanics
A fluid is pumped at the rate of 10 lb/sec to a height of 55 ft. The horse power required is __________ hp.

1
20090
5.5
20363

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Fluid Mechanics
Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the

All of these
Flow of liquid during operation of the pump
Discharge pressure
Back flow of fluid in the event of stoppage of pump

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