Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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.

In a packed bed absorption column, the channelling will be noted by the ____________________?

A Increase in flow rate

B Sharp drop in pressure drop

C Sharp rise in pressure drop

D None of these

Review Detailed Answer

Correct Answer: Sharp drop in pressure drop

Mass transfer co-efficient ‘K’ according to penetration theory varies with mass diffusivity as____________________?

A D0.5

B D

C 1/D

D D1.5

Review Detailed Answer

Correct Answer: D0.5

A binary mixture of benzene and cyclohexane is separated by___________________?

A Flash vaporisation

B Extractive distillation

C Solvent extraction

D Ordinary distillation

Review Detailed Answer

Correct Answer: Extractive distillation

Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the____________________?

A Packing may be crushed due to thermal expansion/contraction of the components of the

B Pressure drop in the equipment will be very high

C Viscosity variation of the fluids may cause channelling/flooding

D None of these

Review Detailed Answer

Correct Answer: Packing may be crushed due to thermal expansion/contraction of the components of the

The expression, y(1 – x)/x(1 – y) is for_____________________?

A Absorption factor

B Relative volatility

C Selectivity

D Murphree efficiency

Review Detailed Answer

Correct Answer: Relative volatility

In McCabe-Thiele method, at infinite reflux ratio___________________?

A Number of plates is maximum

B Overhead product is maximum

C Both the operating lines coincide with the diagram

D None of these

Review Detailed Answer

Correct Answer: Both the operating lines coincide with the diagram

Weeping in a distillation column_____________________?

A Increases tray efficiency

B Provides large interfacial surface for mass transfer

C Results due to very high gas velocity

D Results due to very low gas velocity

Review Detailed Answer

Correct Answer: Results due to very low gas velocity

The ratio of Murphree plate efficiency to point efficiency is 1 in a ______________________ flow model?

A Plug

B Perfectly mixed

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Perfectly mixed

The process employing desorption of the absorbed solute by a solvent is called____________________?

A Elution

B Osmosis

C Reverse osmosis

D Sublimation

Review Detailed Answer

Correct Answer: Elution

Plate efficiency_______________________?

A Is a function of the mass transfer between liquid and vapour

B Increases due to foaming

C Increases due to liquid entrainment

D Increases due to weeping and dumping of liquid

Review Detailed Answer

Correct Answer: Is a function of the mass transfer between liquid and vapour

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

In a packed bed absorption column, the channelling will be noted by the ____________________?

Mass transfer co-efficient ‘K’ according to penetration theory varies with mass diffusivity as____________________?

A binary mixture of benzene and cyclohexane is separated by___________________?

Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the____________________?

The expression, y(1 – x)/x(1 – y) is for_____________________?

In McCabe-Thiele method, at infinite reflux ratio___________________?

Weeping in a distillation column_____________________?

The ratio of Murphree plate efficiency to point efficiency is 1 in a ______________________ flow model?

The process employing desorption of the absorbed solute by a solvent is called____________________?

Plate efficiency_______________________?