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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.

Nusselt number is a function of Prandtl number and ______________ number of fluid in natural convection heat transfer?

A Grashoff

B Biot

C Stanton

D Reynolds

Review Detailed Answer

Correct Answer: Grashoff

Radiation energy is emitted by all the substances, which are above____________________?

A 0°K

B 0°C

C 100°C

D Room temperature

Review Detailed Answer

Correct Answer: 0°K

The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is_________________?

A Nusselt number

B Sherwood number

C Schmidt number

D Stanton number

Review Detailed Answer

Correct Answer: Schmidt number

Loss of heat from untagged steam pipe to the ambient air is by __________________?

A Conduction

B Convection

C Radiation

D All A., B. & C.

Review Detailed Answer

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

In Biot number, the characteristic length used is the ratio of the _______________ of the solid?

A Volume to surface area

B Perimeter to surface area

C Surface area to volume

D Surface area to perimeter

Review Detailed Answer

Correct Answer: Volume to surface area

Boiling point elevation for a strong and concentrated solution is found by Duhring’s rule, which states that at the same pressure, the boiling point of a solution is a linear function of the _______________ of pure water?

A Boiling point

B Dynamic viscosity

C Kinematic viscosity

D Density

Review Detailed Answer

Correct Answer: Boiling point

Stefan-Boltzmann law which describes the radiation heat transfer states that, it is proportional to (where, t = temperature in °C T = absolute temperature in ° K) ?

A t4

B T4

C 1/t4

D 1/T4

Review Detailed Answer

Correct Answer: T4

The equation, (NSt × N2/3 Pr) = f/2, is the ____________ analogy ?

A Colburn

B Reynolds

C Prandtl

D None of these

Review Detailed Answer

Correct Answer: Colburn

The range of electromagnetic spectrum important in heat transfer by radiation is ______________ microns?

A 0.38-0.78

B 0.5-50

C 100-1000

D 5-50

Review Detailed Answer

Correct Answer: 0.5-50

Boiling point of a solution according to Duhring’s rule is a linear function of the _____________ of water?

A Boiling point (at the same pressure)

B Viscosity

C Density

D Thermal conductivity

Review Detailed Answer

Correct Answer: Boiling point (at the same pressure)

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Nusselt number is a function of Prandtl number and ______________ number of fluid in natural convection heat transfer?

Radiation energy is emitted by all the substances, which are above____________________?

The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is_________________?

Loss of heat from untagged steam pipe to the ambient air is by __________________?

In Biot number, the characteristic length used is the ratio of the _______________ of the solid?

Boiling point elevation for a strong and concentrated solution is found by Duhring’s rule, which states that at the same pressure, the boiling point of a solution is a linear function of the _______________ of pure water?

Stefan-Boltzmann law which describes the radiation heat transfer states that, it is proportional to (where, t = temperature in °C T = absolute temperature in ° K) ?

The equation, (NSt × N2/3 Pr) = f/2, is the ____________ analogy ?

The range of electromagnetic spectrum important in heat transfer by radiation is ______________ microns?

Boiling point of a solution according to Duhring’s rule is a linear function of the _____________ of water?