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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

Small dia distillation column can be a _________________________?
A Packed column
B Sieve tray
C Bubble cap
D Any of these
Correct Answer: Packed column
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is_______________________?
A 0.50
B 0.60
C 1
D 2
Correct Answer: 0.50
The wetted wall tower is used to determine_________________________?
A Individual mass transfer co-efficient (M.T.C.) in gaseous system
B M.T.C. of individual components in a liquid-liquid system
C M.T.C. of liquid in liquid-gas system
D The overall M.T.C. of the system
Correct Answer: Individual mass transfer co-efficient (M.T.C.) in gaseous system
Low viscosity absorbent is preferred for reasons of ____________________?
A Rapid absorption rates and good heat transfer characteristics
B Improved flooding characteristics
C Low pressure drop on pumping
D All A., B. and C.
Correct Answer: All A., B. and C.
For absorbing a sparingly soluble gas in a liquid ___________________?
A Gas side mass transfer co-efficient should be increased
B Liquid side mass transfer co-efficient should be increased
C Liquid side mass transfer co-efficient should be decreased
D Mass transfer co-efficient must be kept constant
Correct Answer: Liquid side mass transfer co-efficient should be increased
In distillation columns, the number of bubble caps per tray primarily depends upon the_______________________?
A Allowable liquid velocity
B Allowable gas velocity
C Allowable gas and liquid velocities
D Feed composition
Correct Answer: Allowable gas and liquid velocities
The reciprocal of stripping factor is termed as ________________________?
A Selectivity index
B Relative volatility
C Absorption factor
D Murphree efficiency
Correct Answer: Absorption factor
Mass transfer co-efficient of liquid is____________________?
A Affected more by temperature than that for gases
B Affected much less by temperature than that for gases
C Not affected by the temperature
D None of these
Correct Answer: Affected more by temperature than that for gases
If f = moles of vapour present per mole of feed, then the slope of feed line is (McCabe- Thiele method) ________________________?
A (1 – f)/f
B – (f – 1)/f
C -1/f
D -f/(1 – f)
Correct Answer: -1/f
Which of the following plays an important role in problems of simultaneous heat and mass transfer ?
A Lewis number
B Schmidt number
C Prandtl number
D Sherwood number
Correct Answer: Lewis number
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