Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 22 of 73)

Attempt Fluid Mechanics for Chemical Quiz
The pressure intensity is the same in all directions at a point in a fluid________________?
A. Only when the fluid is frictionless
B. Only when the fluid is at rest having zero velocity
C. When there is no motion of one fluid layer relative to an adjacent layer
D. Regardless of the motion of one fluid layer relative to an adjacent layer
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Hydraulic mean radius for flow through packed bed of spherical particle of size, ‘Dp, with porosity ‘ε’ is________________?
A. (dp/6) (ε/1- ε)
B. (dp/6) (1- ε/ε)
C. ⅔dp (1- ε/ε)
D. ⅔dp (ε/1- ε)
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Gradually varying fluid flow is an example of ____________ flow?
A. Non-steady uniform
B. Non-steady non-uniform
C. Steady uniform
D. Steady non-uniform
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The head loss in turbulent flow in pipe is proportional to(where, V = velocity of fluid through the pipe) ?
A. V2
B. 1/v2
C. 1/v
D. V
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Prandtl number is a measure of the__________________?
A. Heat conduction to viscosity of a fluid
B. Cp/cv of a fluid
C. Elastic force to pressure force in the fluid flow
D. Inertial force to elastic force in the fluid flow
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Potential flow is the flow of______________?
A. Compressible fluids with shear
B. Compressible fluids with no shear
C. Incompressible fluids with shear
D. Incompressible fluids with no shear
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Weber number is the ratio of inertial force to _____________ force?
A. Surface tension
B. Gravity
C. Viscous
D. Elastic
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In case of Couette flow, the fluid flow is between two large flat parallel plates with___________________?
A. Top plate moving and the bottom plate fixed
B. Bottom plate moving and the top plate fixed
C. Both the plates fixed
D. Both the plates moving
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Dimension of kinematic viscosity is_____________________?
A. Mlt-1
B. L2t-1
C. L2t
D. L2t-2
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Multistage compressors are used in industry, because they____________________?
A. Reduce the cost of compressor
B. Reduce the size requirement
C. Resemble closely to isothermal compression
D. Are easy to control
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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