Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 25 of 73)

Attempt Fluid Mechanics for Chemical Quiz
Which of the following has the maximum compression ratio ?
A. Blower
B. Compressor
C. Vacuum pump
D. Fan
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A mixed flow centrifugal pump_______________________?
A. Employs such an impeller, through which the flow is a combination of radial & axial flow
B. Mixes the two fluids before pumping them
C. Pumps the two fluids separately and then mixes them
D. Employs impellers in both the radial & axial directions
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A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a ____________ pump?
A. Sump
B. Volute
C. Vacuum
D. Submerged
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Momentum correction factor used in fluid flow problems accounts for the__________________?
A. Change in direction of flow
B. Change in total energy
C. Change in pressure
D. Non uniform direction of velocities at inlet & outlet sections
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Isothermal turbulent flow of a fluid results in decrease of its pressure, which depends on the______________?
A. Wall roughness
B. Reynolds number
C. Both a. & b.
D. Neither a. nor b.
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Minimum porosity for fluidisation is____________________?
A. That corresponding to static bed
B. That corresponding to completely fluidised bed
C. The porosity of the bed when true fluidisation begins
D. Less than that of the’ static bed
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In area meter (e.g., Rotameter), with increase in the fluid flow rate, the___________________?
A. Pressure drop increases linearly
B. Pressure drop is almost constant
C. Area through which fluid flows does not vary
D. None of these
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In case of a centrifugal pump, the theoretical head developed is dependent on the _____________ the impeller?
A. Speed of
B. Diameter of
C. Fluid velocity leaving
D. All a., b. and c.
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Terminal velocity is_____________________?
A. A constant velocity with no acceleration
B. A fluctuating velocity
C. Attained after moving one-half of total distance
D. None of these
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Drag co-efficient for motion of spherical particles in a stationary fluid in the stoke’s law range is_________________?
A. 24/nre,p
B. 16/nre,p
C. 64/nre,p
D. 48/nre,p
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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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