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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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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.

All Topics  9594

Which of the following has maximum hydrogen/carbon ratio (by weight) ?
A Naphtha
B Gasoline
C Diesel
D Fuel oil
Correct Answer: Gasoline
Naphtha yield in straight run distillation of crude oil may be about _______________ percent?
A 2
B 6
C 12
D 18
Correct Answer: 6
Older crude petroleum __________________?
A Is light and better
B Gives more distillates
C Gives less tar
D All A., B. and C.
Correct Answer: Gives more distillates
Pick out the undesirable property for a solvent meant for dewaxing of lube oil ?
A Complete miscibility with oil
B High solubility of wax in the solvent
C Both A. and B.
D Neither A. nor B.
Correct Answer: Both A. and B.
In sweetening process, solutizer agent used with caustic alkali is_______________?
A Potassium isobutyrate
B Sodium plumbite
C Methanol
D Phenol
Correct Answer: Potassium isobutyrate
Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is________________?
A 4
B 3
C 2
D 1
Correct Answer: 4
Which of the following tests is not done for transformer oil ?
A Flash point and acid value
B Aniline point
C Dielectric strength
D Copper strip corrosion test
Correct Answer: Aniline point
Petrolatum is__________________?
A Same as petroleum ether
B Petroleum coke
C A mixture of microcrystalline wax in viscous hydrocarbon liquids
D None of these
Correct Answer: A mixture of microcrystalline wax in viscous hydrocarbon liquids
Extractor temperature is maintained at -20°C in Edeleanu process to reduce the ______________ of kerosene?
A Smoke point
B Paraffins
C Aromatics
D Naphthenes
Correct Answer: Paraffins
Most widely used solvent for dewaxing is__________________?
A Methyl-ethyl-ketone (MEK)
B Naphtha
C Petroleum ether
D Sodium plumbite
Correct Answer: Methyl-ethyl-ketone (MEK)
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