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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.

Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of__________________?

A Mass diffusivity to momentum diffusivity

B Thermal diffusivity to mass diffusivity

C Momentum diffusivity to thermal diffusivity

D None of these

Review Detailed Answer

Correct Answer: Thermal diffusivity to mass diffusivity

Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the ________________ number?

A Sherwood

B Schmidt

C Peclet

D Stanton

Review Detailed Answer

Correct Answer: Sherwood

Cox chart is useful in the design of___________________?

A Distillation column

B Evaporator

C Dryer

D Crystalliser

Review Detailed Answer

Correct Answer: Distillation column

The binary diffusivity in gases and liquids vary respectively as_________________?

A T3/2 and T

B T and T3/2

C √T and T3/2

D T3/2 and √T

Review Detailed Answer

Correct Answer: T3/2 and T

Decoction refers to the use of solvent________________?

A At ambient temperature

B At its boiling point

C In its vapor form

D None of these

Review Detailed Answer

Correct Answer: At its boiling point

Ordinary diffusion process is also called ______________ diffusion?

A Pressure

B Thermal

C Concentration

D Forced

Review Detailed Answer

Correct Answer: Concentration

Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in ______________ tower?

A Wetted wall

B Bubble cap

C Perforated tray

D Packed

Review Detailed Answer

Correct Answer: Wetted wall

The solvent used in liquid-liquid extraction should have _______________ less than one?

A Selectivity

B Distribution co-efficient

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Neither A. nor B.

Which of the following equipments is not used for liquid dispersion ?

A Wetted wall towers

B Packed towers

C Venturi scrubbers

D Agitated vessels

Review Detailed Answer

Correct Answer: Agitated vessels

Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the_________________?

A Mass transfer co-efficient

B Thermal diffusivity

C Kinematic viscosity

D Volumetric diffusivity

Review Detailed Answer

Correct Answer: Mass transfer co-efficient

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of__________________?

Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the ________________ number?

Cox chart is useful in the design of___________________?

The binary diffusivity in gases and liquids vary respectively as_________________?

Decoction refers to the use of solvent________________?

Ordinary diffusion process is also called ______________ diffusion?

Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in ______________ tower?

The solvent used in liquid-liquid extraction should have _______________ less than one?

Which of the following equipments is not used for liquid dispersion ?

Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the_________________?