M C Q s D r i v e

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.

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
Smoke point of kerosene is the_______________?
A Time after which smoking starts on burning
B Temperature at which smoking starts
C Maximum height of flame (in mm) without causing smoking, when burnt in a standard lamp
D None of these
Correct Answer: Temperature at which smoking starts
Which of the following petroleum products contain minimum sulphur ?
A Naphtha
B Kerosene
C LSHS
D Furnace oil
Correct Answer: Naphtha
Ethyl mercaptan is a/an ___________________ compound?
A Sulphur
B Nitrogen
C Oxygen
D None of these
Correct Answer: Sulphur
The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to ____________________?
A Obviate catalyst poisoning
B Maintain the reaction temperature
C Sustain the reactor pressure
D Hydrogenate the feed stock
Correct Answer: Sustain the reactor pressure