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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.

Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of ____________________?

A Thermal cracking

B Gum formation

C Coking

D Discoloration

Review Detailed Answer

Correct Answer: Coking

The best method of determining sulphur in crude oil is by the _______________ method?

A Kjeldahl

B Dumas

C Bomb calorimeter

D Junkers calorimeter

Review Detailed Answer

Correct Answer: Bomb calorimeter

Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?

A Dehydrogenation of Naphthene

B Dehydrogenation of lower paraffins

C Dehydrocyclization of higher paraffins

D Isomerisation of paraffins

Review Detailed Answer

Correct Answer: Dehydrogenation of lower paraffins

The most important property for a jet fuel is its________________?

A Viscosity

B Freezing point

C Calorific value

D Flash point

Review Detailed Answer

Correct Answer: Freezing point

Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about _______________ mm Hg (absolute)?

A 5-10

B 30-80

C 150-250

D 350-400

Review Detailed Answer

Correct Answer: 30-80

Which of the following is not an important property of fuel oil/furnace oil ?

A Sulphur content

B Viscosity

C Aniline point

D Flash point

Review Detailed Answer

Correct Answer: Aniline point

High aniline point of a petrofuel (say diesel) indicates that ________________?

A It is highly aromatic in nature

B It is highly paraffinic in nature

C It has a very low diesel index

D Its ignition quality is very poor

Review Detailed Answer

Correct Answer: It is highly paraffinic in nature

The vacuum maintained in vacuum distillation unit for reduced crude is about _______________ mm Hg?

A 1.2

B 12

C 120

D 700

Review Detailed Answer

Correct Answer: 12

Liquefied Petroleum Gas (LPG) is mainly a mixture of _____________________?

A Propane & butane

B Methane & ethane

C High boiling olefins

D High boiling naphthenes

Review Detailed Answer

Correct Answer: Propane & butane

Which of the following has the lowest cetane number ?

A Aromatics

B i-paraffins

C Naphthene

D Olefins

Review Detailed Answer

Correct Answer: Aromatics

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of ____________________?

The best method of determining sulphur in crude oil is by the _______________ method?

Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?

The most important property for a jet fuel is its________________?

Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about _______________ mm Hg (absolute)?

Which of the following is not an important property of fuel oil/furnace oil ?

High aniline point of a petrofuel (say diesel) indicates that ________________?

The vacuum maintained in vacuum distillation unit for reduced crude is about _______________ mm Hg?

Liquefied Petroleum Gas (LPG) is mainly a mixture of _____________________?

Which of the following has the lowest cetane number ?