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.

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

Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________?

A Propane

B Diethylene glycol

C Aqueous solution (10% water) of diethylene glycol

D Methyl ethyl ketone (MEK)

Review Detailed Answer

Correct Answer: Aqueous solution (10% water) of diethylene glycol

Straight run petrol as compared to methyl/ethyl alcohol has_________________?

A Lower calorific value

B Lower octane number

C Higher specific gravity

D Higher ignition temperature

Review Detailed Answer

Correct Answer: Lower octane number

______________ test is done to find out the softening point of bitumen?

A Impact

B Ball and ring

C Flame

D Viscosity

Review Detailed Answer

Correct Answer: Ball and ring

In catalytic cracking process, olefins crack ______________ times faster than in thermal cracking process?

A 100

B 200-300

C 1000-10000

D 10

Review Detailed Answer

Correct Answer: 100

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

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_________________?

Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________?

Straight run petrol as compared to methyl/ethyl alcohol has_________________?

______________ test is done to find out the softening point of bitumen?

In catalytic cracking process, olefins crack ______________ times faster than in thermal cracking process?