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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

Removal of ______________ exemplifies an adsorption unit operation?
A Uranium from its ore
B Water from petrol
C Ammonia from coke oven gas
D Mustard oil from mustard seed
Correct Answer: Water from petrol
The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an ___________________?
A Pure component
B Binary mixture
C Ternary mixture
D Insoluble binary system
Correct Answer: Pure component
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the ________________ temperature?
A Dry-bulb
B Wet-bulb
C Dew point
D Adiabatic saturation
Correct Answer: Wet-bulb
In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of_________________?
A 1.5
B -0.6
C -1.5
D 0.6
Correct Answer: 1.5
In case of unsaturated air____________________?
A Dew point < wet bulb temperature
B Wet bulb temperature < dry bulb temperature
C Both A. and B.
D Neither A. not B.
Correct Answer: Both A. and B.
The individual mass transfer co-efficients (moles/m2s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ?
A Liquid side
B Gas side
C Interfacial
D Both liquid and gas side
Correct Answer: Gas side
Minimum reflux ratio in a distillation column results in__________________?
A Optimum number of trays
B Minimum reboiler size
C Maximum condenser size
D Minimum number of trays
Correct Answer: Maximum condenser size
Steady state equimolal counter diffusion is encountered in_____________________?
A Separation of a binary mixture by distillation
B Absorption of NH3 from air by water
C All liquid-liquid diffusion systems
D All liquid-solid diffusion systems
Correct Answer: Separation of a binary mixture by distillation
Experimental determination of _______________ is done by wetted wall column method?
A Diffusion co-efficient
B Mass transfer co-efficient
C NTU
D None of these
Correct Answer: Mass transfer co-efficient
Measurement of the interfacial area of mass transfer is achieved easily & accurately in case of a ________________ column?
A Spray
B Packed
C Bubble cap plate
D Wetted wall
Correct Answer: Wetted wall
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