M C Q s D r i v e

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.

The diffusivity D. in a binary gas mixture is related to the pressure (P) as__________________?
A D ∝ P0.5
B D ∝ 1/P0.5
C D ∝ 1/P
D D ∝ 1/P1.5
Correct Answer: D ∝ 1/P
Dorr thickener is an equipment used for___________________?
A Classification
B Sedimentation
C Clarification
D Leaching
Correct Answer: Sedimentation
Can the efficiency of a plate in the distillation tower be greater than 100% ?
A Yes
B Normally not; but is possible if infinite number of plates are put
C Never
D Yes; if the reflux ratio is maximum
Correct Answer: Never
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in_________________?
A Decreased solute solubility
B Large minimum liquid to gas (L/G) ratio
C Large number of trays
D All A., B. and C.
Correct Answer: All A., B. and C.
Reverse osmosis is also called_________________?
A Dialysis
B Electrodialysis
C Diffusion
D Ultra-filtration
Correct Answer: Ultra-filtration
Laboratory determination of the diffusivity of vapor is done by __________________ method?
A Wetted wall column
B Gilliland’s
C Winkelmann’s
D Wike’s
Correct Answer: Winkelmann’s
Paper industry employs _______________ driers?
A Cylinder
B Rotary
C Spray
D Fluidised bed
Correct Answer: Cylinder
Use of packed towers for distillation is generally limited to the____________________?
A Small sizes
B Multi-component distillation
C High pressure operation
D Vacuum distillation
Correct Answer: Small sizes
_______________ extractor is used for the concentration of radioactive nuclear waste?
A Pulsed column
B Sieve plate
C Mixer-settler
D Bollman
Correct Answer: Pulsed column
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