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.

H/C ratio (by weight) for the same number of carbon atoms is the highest in case of____________________?

A Aromatics

B Paraffins

C Olefins

D Naphthenes

Review Detailed Answer

Correct Answer: Naphthenes

Highest quality bitumen is produced from the __________________ crude oil?

A Paraffinic

B Naphthenic

C Intermediate

D Mixed

Review Detailed Answer

Correct Answer: Naphthenic

Molecular weight of petrol may be about ____________________?

A 40-60

B 100-130

C 250-300

D 350-400

Review Detailed Answer

Correct Answer: 100-130

A typical yield of kerosene in straight run distillation of crude oil may be about __________________ percent?

A 4

B 10

C 18

D 26

Review Detailed Answer

Correct Answer: 10

Casing head gasoline is the liquid __________________?

A Butane

B Propane

C Natural gas

D Gasoline separated from wet natural gas by compression

Review Detailed Answer

Correct Answer: Butane

The pressure (kg/cm2) and temperature (°C) maintained in electrical desalters for crude oil are respectively__________________?

A 10 and 120

B 1 and 200

C 50 and 250

D 10 and 300

Review Detailed Answer

Correct Answer: 1 and 200

A good lubricant should have high _____________________ ?

A Viscosity index

B Volatility

C Pour point

D None of these

Review Detailed Answer

Correct Answer: Viscosity index

Name the hydrocarbon having the poorest oxidation stability ?

A Naphthene

B Olefin

C Paraffin

D Aromatics

Review Detailed Answer

Correct Answer: Aromatics

Phenols are added in gasoline to____________________?

A Improve the octane number

B Act as an antioxidant

C Reduce its viscosity

D Increase its pour point

Review Detailed Answer

Correct Answer: Act as an antioxidant

Paraffin base crude oil as compared to asphalt base crude gives___________________?

A Higher yield of straight run gasoline

B Higher octane number gasoline

C Lower viscosity index lube oil

D Poorer yield of lube oil

Review Detailed Answer

Correct Answer: Higher yield of straight run gasoline

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

H/C ratio (by weight) for the same number of carbon atoms is the highest in case of____________________?

Highest quality bitumen is produced from the __________________ crude oil?

Molecular weight of petrol may be about ____________________?

A typical yield of kerosene in straight run distillation of crude oil may be about __________________ percent?

Casing head gasoline is the liquid __________________?

The pressure (kg/cm2) and temperature (°C) maintained in electrical desalters for crude oil are respectively__________________?

A good lubricant should have high _____________________ ?

Name the hydrocarbon having the poorest oxidation stability ?

Phenols are added in gasoline to____________________?

Paraffin base crude oil as compared to asphalt base crude gives___________________?