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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

________________ treatment is done for appreciable improvement in viscosity index of lubricating oil?
A Acid
B Solvent extraction
C Alkali
D Clay
Correct Answer: Solvent extraction
Water separometer index (modified) (WSIM) of a petrofuel is the measure of its____________________?
A Emulsification tendency
B Water separation characteristics
C Water content
D Water absorbing capacity from atmosphere
Correct Answer: Water separation characteristics
Sweetening of petroleum product means the removal of ______________________?
A Sulphur & its compounds
B Water
C Organic impurities
D Wax
Correct Answer: Sulphur & its compounds
Aniline point of high speed diesel may be about ____________ °C ?
A 35
B 70
C 105
D 150
Correct Answer: 70
Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil ?
A Modern theory
B Carbide theory
C Engler theory
D All A., B. and C.
Correct Answer: Carbide theory
Octane number (unleaded) of reformed gasoline may be upto ________________?
A 60
B 70
C 80
D 90
Correct Answer: 90
Which of the following gasoline (unleaded) has the least octane number ?
A Catalytically cracked gasoline
B Straight run gasoline
C Catalytically reformed gasoline
D Polymer gasoline
Correct Answer: Straight run gasoline
A multigrade lubricating oil means an oil having high __________________?
A Viscosity index
B Viscosity
C Aniline point
D Flash point
Correct Answer: Viscosity index
Reforming__________________?
A Uses naphtha as feedstock
B Does not much affect the molecular weight of the feed
C Improves the quality & yield of gasoline
D All A., B. and C.
Correct Answer: All A., B. and C.
Feed for reforming is generally___________________?
A Naphtha or straight run gasoline
B Reduced crude
C Vacuum gas oil
D Atmospheric gas oil
Correct Answer: Naphtha or straight run gasoline
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