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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.

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)

Prandtl number for most of dry gases is about________________?

A 0.001

B 0.72

C 70

D 150

Review Detailed Answer

Correct Answer: 0.72

Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the________________?

A Less corrosion problems

B Flexibility possible in the baffle arrangement

C Low pressure drop

D High heat transfer co-efficient

Review Detailed Answer

Correct Answer: Flexibility possible in the baffle arrangement

The purpose of providing expansion bellows in the shell of tubular exchanger is to _____________________?

A Increase the heating load

B Impart structural strength

C Account for the uneven expansion of shell and tube bundles

D Facilitate increase of shell length, if needed

Review Detailed Answer

Correct Answer: Account for the uneven expansion of shell and tube bundles

Multipass heat exchangers are used______________________?

A Because of simplicity of fabrication

B For low heat load

C To obtain higher heat transfer co-efficient and shorter tube

D To reduce the pressure drop

Review Detailed Answer

Correct Answer: To obtain higher heat transfer co-efficient and shorter tube

It is not recommended to use a 1-2 shell and tube heat exchanger for a particular heat duty, whenever the LMTD correction factor is___________________?

A > 0.75

B < 0.75

C < 0.50

D < 0.25

Review Detailed Answer

Correct Answer: < 0.75

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

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?

Prandtl number for most of dry gases is about________________?

Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the________________?

The purpose of providing expansion bellows in the shell of tubular exchanger is to _____________________?

Multipass heat exchangers are used______________________?

It is not recommended to use a 1-2 shell and tube heat exchanger for a particular heat duty, whenever the LMTD correction factor is___________________?