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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

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
Correct Answer: A constant velocity with no acceleration
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.
Correct Answer: All A., B. and C.
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
Correct Answer: Pressure drop is almost constant
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
Correct Answer: The porosity of the bed when true fluidisation begins
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.
Correct Answer: Both A. & B.
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
Correct Answer: Non uniform direction of velocities at inlet & outlet sections
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
Correct Answer: Vacuum
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
Correct Answer: Employs such an impeller, through which the flow is a combination of radial & axial flow
Which of the following has the maximum compression ratio ?
A Blower
B Compressor
C Vacuum pump
D Fan
Correct Answer: Vacuum pump
For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively) ?
A G is above B
B B is above G
C B & G coincide
D None of these
Correct Answer: B is above G
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