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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 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)
Which of the following is not a sulphur compound present in petroleum ?
A Thiophenes
B Mercaptans
C Sulphones
D Pyrroles
Correct Answer: Pyrroles
Pour point of a petrofuel is________________?
A Multiple of 3°F
B Multiple of 5°F
C 5°C below the temperature at which oil ceases to flow
D None of these
Correct Answer: 5°C below the temperature at which oil ceases to flow
Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about ________________ of that of water (i.e. 1 gm/c.c)?
A One fourth
B One third
C Half
D One eighth
Correct Answer: Half
Higher pressure in the reforming reactor________________?
A Increases coke formation
B Increases the rate of reaction
C Produces high octane number gasoline
D None of these
Correct Answer: None of these
_____________ base crude oil is also called asphaltic crude?
A Paraffinic
B Naphthenic
C Mixed
D Aromatic
Correct Answer: Naphthenic
The most suitable solvent for deasphalting vacuum residue is_____________________?
A Propane
B Methyl ethyl ketone
C Doctor’s solution
D Methanol amine
Correct Answer: Methyl ethyl ketone
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