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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.

If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is____________________

A 0

B 1

C 1

Review Detailed Answer

Correct Answer: 1

_____________ is used as an ‘entrainer’ for the separation of acetic acid-water mixture by distillation?

A Furfural

B Benzol

C Butyl acetate

D Hexane

Review Detailed Answer

Correct Answer: Butyl acetate

Steady state equimolal counter diffusion occurs in case of ____________________?

A Leaching

B Absorption

C Binary phase distillation

D Liquid-liquid extraction

Review Detailed Answer

Correct Answer: Binary phase distillation

In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at ________________ reflux ?

A Total

B Minimum

C Operating

D Maximum permissible

Review Detailed Answer

Correct Answer: Total

Equilibrium-moisture curves of different solids ____________________ ?

A Are different

B Are same

C Depend on the humidity of the gas

D None of these

Review Detailed Answer

Correct Answer: Are different

The vapour pressure exerted by the moisture contained in a wet solid depends upon the____________________?

A Nature of the moisture

B Temperature

C Nature of the solid

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as___________________?

A Re0.33

B Re0.53

C Re0.83

D Re

Review Detailed Answer

Correct Answer: Re0.83

With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas________________?

A Increases

B Decreases

C Decreases linearly

D Remain unaffected

Review Detailed Answer

Correct Answer: Decreases

At what value of reflux ratio, number of theoretical plates in a distillation column is minimum ?

A 0

B 1

C ∞

D < 1

Review Detailed Answer

Correct Answer: ∞

The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the ______________ temperature?

A Dew point

B Wet bulb

C Dry bulb

D None of these

Review Detailed Answer

Correct Answer: None of these

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is____________________

_____________ is used as an ‘entrainer’ for the separation of acetic acid-water mixture by distillation?

Steady state equimolal counter diffusion occurs in case of ____________________?

In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at ________________ reflux ?

Equilibrium-moisture curves of different solids ____________________ ?

The vapour pressure exerted by the moisture contained in a wet solid depends upon the____________________?

For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as___________________?

With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas________________?

At what value of reflux ratio, number of theoretical plates in a distillation column is minimum ?

The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the ______________ temperature?