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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.

Catalyst used in the catalytic cracking is_____________________?

A Silica-alumina

B Silica gel

C Vanadium pentoxide

D Nickel

Review Detailed Answer

Correct Answer: Silica-alumina

For gasoline, the flash point (<50°C) is determined by the______________________?

A Abel apparatus

B Pensky-Marten’s apparatus

C Saybolt chromometer

D None of these

Review Detailed Answer

Correct Answer: None of these

Main constituent of natural gas is___________________?

A CH4

B C2H2

C C2H4

D C2H6

Review Detailed Answer

Correct Answer: CH4

Crude oil is subjected to vacuum distillation in the last stage, because_________________?

A High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may

B Lighter/low boiling products are prone to thermal decomposition

C High purity products can be obtained thereby

D None of these

Review Detailed Answer

Correct Answer: High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may

Mercaptans are________________?

A Low boiling sulphur compounds

B Added in LPG cylinders to detect gas leakage by its smell

C Undesirable in petrol, as they reduce its octane number

D All A., B. and C.

Review Detailed Answer

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

Aniline point test of an oil qualitatively indicates the ______________ content of an oil?

A Paraffin

B Olefin

C Aromatic

D Naphthene

Review Detailed Answer

Correct Answer: Aromatic

Pour point and freezing point is equal for__________________?

A Petrol

B Diesel

C Water

D Crude petroleum

Review Detailed Answer

Correct Answer: Water

Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of ______________ kcal/kg?

A 600-750

B 250-350

C 1000-1500

D 2000-2500

Review Detailed Answer

Correct Answer: 600-750

The characterisation factor of a crude oil is calculated as 12.5. It means that; it is________________?

A Paraffinic

B Naphthenic

C Intermediate

D None of these

Review Detailed Answer

Correct Answer: Paraffinic

Solution used in Doctor’s treatment for the removal of mercaptans is_________________?

A Sodium hydroxide

B Sodium plumbite

C Cupric chloride

D Potassium isobutyrate

Review Detailed Answer

Correct Answer: Sodium plumbite

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Catalyst used in the catalytic cracking is_____________________?

For gasoline, the flash point (<50°C) is determined by the______________________?

Main constituent of natural gas is___________________?

Crude oil is subjected to vacuum distillation in the last stage, because_________________?

Mercaptans are________________?

Aniline point test of an oil qualitatively indicates the ______________ content of an oil?

Pour point and freezing point is equal for__________________?

Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of ______________ kcal/kg?

The characterisation factor of a crude oil is calculated as 12.5. It means that; it is________________?

Solution used in Doctor’s treatment for the removal of mercaptans is_________________?