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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.

Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil__________________?

A Gives higher yield of petrol

B Lower octane number of petrol

C Higher sulphur content in the product

D Higher gum forming material in petrol

Review Detailed Answer

Correct Answer: Gives higher yield of petrol

Which of the following is the most widely used cracking process in oil refineries ?

A Dubbs process

B T.C.C. moving bed process

C Fluidised bed catalytic cracking process

D Houdry’s fixed bed process

Review Detailed Answer

Correct Answer: Fluidised bed catalytic cracking process

Presence of aromatics in __________________?

A Diesel increases its cetane number

B Kerosene increases its smoke point

C Petrol increases its octane number

D All A., B. and C.

Review Detailed Answer

Correct Answer: Petrol increases its octane number

The main aim of cracking is to produce ____________________?

A Gasoline

B Lube oil

C Petrolatum

D Coke

Review Detailed Answer

Correct Answer: Gasoline

Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to________________?

A Increase its smoke point

B Improve its oxidation stability

C Decrease the breathing loss

D None of these

Review Detailed Answer

Correct Answer: Improve its oxidation stability

Visbreaking__________________?

A Uses natural gas as feed

B Is carried out at atmospheric pressure

C Produces fuel oil of lower viscosity

D Produces gasoline only

Review Detailed Answer

Correct Answer: Produces fuel oil of lower viscosity

Flash point of an oil is determined by the _____________________?

A Pensky Martens apparatus

B Ramsbottom apparatus

C Saybolt viscometer

D Conradson apparatus

Review Detailed Answer

Correct Answer: Pensky Martens apparatus

Catalyst used in catalytic polymerisation which produces polymer gasoline is_________________?

A H2SO4

B H3PO4

C Both A. and B.

D AlCl3

Review Detailed Answer

Correct Answer: Both A. and B.

Hydrogen percentage (by weight) in crude petroleum may be about __________________?

A 5

B 15

C 25

D 35

Review Detailed Answer

Correct Answer: 5

An upper limit of oil content is limited to about ______________ percent for achieving efficient and satisfactory level of wax sweating?

A 5

B 15

C 40

D 60

Review Detailed Answer

Correct Answer: 40

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil__________________?

Which of the following is the most widely used cracking process in oil refineries ?

Presence of aromatics in __________________?

The main aim of cracking is to produce ____________________?

Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to________________?

Visbreaking__________________?

Flash point of an oil is determined by the _____________________?

Catalyst used in catalytic polymerisation which produces polymer gasoline is_________________?

Hydrogen percentage (by weight) in crude petroleum may be about __________________?

An upper limit of oil content is limited to about ______________ percent for achieving efficient and satisfactory level of wax sweating?