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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

Water-ethyl alcohol solution can be concentrated (in respect of alcohol concentration) by ________________ distillation?
A Atmospheric
B Vacuum
C High pressure
D None of these
Correct Answer: Vacuum
When the temperature and humidity of air is low, we usually use _______________ draft cooling tower?
A Natural
B Forced
C Induced
D None of these
Correct Answer: Natural
In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the__________________?
A Temperature and pressure
B Concentration
C Nature of the constituents
D None of these
Correct Answer: None of these
Leaching of sugar from sugar beets is done by___________________?
A Hot water
B Hexane
C Dilute H2SO4
D Lime water
Correct Answer: Hot water
In an absorber, HETP does not vary with the____________________?
A Flow rate of liquid
B Flow rate of gas
C Type and size of packing
D None of these
Correct Answer: None of these
Which of the following parameters remains almost constant during adiabatic saturation of unsaturated air ?
A Dry bulb temperature
B Dew point
C Wet bulb temperature
D None of these
Correct Answer: Wet bulb temperature
Which of the following quantities need not be fixed before starting the design of a cocurrent absorber ?
A Heat gain or loss
B Flow rate of entering liquid
C Flow rate of gas
D None of these
Correct Answer: Flow rate of entering liquid
During drying operation, it is easier to remove the ________________ moisture ?
A Equilibrium
B Critical
C Unbound
D Bound
Correct Answer: Unbound
In extractive distillation, solvent is_____________________?
A Added to alter the relative volatility of the mixture
B Of high volatility
C Present in overhead stream
D Of high viscosity to give high tray efficiency
Correct Answer: Added to alter the relative volatility of the mixture
At a fixed total pressure, humidity depends only on the _______________________?
A Partial pressure of vapour in the mixture
B Heat capacity of the vapour
C Density of the vapour
D None of these
Correct Answer: Partial pressure of vapour in the mixture
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