chemical engineering petroleum refinery engineering MCQs – Page 2

Practise multiple-choice questions from chemical engineering petroleum refinery engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering petroleum refinery engineering Mcqs
21. Aromatics have the highest ________________ of all the hydrocarbons of same carbon atoms?
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A. Viscosity

B. Octane number

C. Smoke point

D. Cetane number

22. A good lubricant should have high _____________________ ?
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A. Volatility

B. Viscosity index

C. Pour point

D. None of these

23. LPG stands for ____________________?
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A. Liquefied petrol gas

B. Liquefied petroleum gas

C. Liquid petrol gas

D. Liquid petroleum gas

24. An upper limit of oil content is limited to about ______________ percent for achieving efficient and satisfactory level of wax sweating?
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A. 15

B. 60

C. 40

D. 5

25. Octane number (unleaded) of reformed gasoline may be upto ________________?
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A. 80

B. 60

C. 70

D. 90
26. The coking process normally mostly used in Indian oil refineries is the ____________________ coking process ?
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A. Contact

B. Fluid

C. Flexi

D. Delayed
27. Which of the following is the most widely used cracking process in oil refineries ?
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A. T.C.C. moving bed process

B. Houdrys fixed bed process

C. Dubbs process

D. Fluidised bed catalytic cracking process
28. Crude oil is transported inland from oil field to refineries, mainly by the _____________________?
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A. Road tankers

B. Rail tankers

C. None of these

D. Underground pipelines
29. Cetane number of a diesel fuel is the measure of its____________________?
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A. Viscosity

B. Ignition delay

C. Oxidation stability

D. Smoke point

30. Feedstock for polymerisation is__________________?
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A. None of these

B. Naphtha

C. Low boiling aromatics

D. Cracked gases rich in C2 & C4 olefins
31. The characterisation factor of crude petroleum oil is around__________________?
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A. 22

B. 3

C. 11

D. 28

32. Higher pressure in the reforming reactor________________?
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A. Increases coke formation

B. Increases the rate of reaction

C. Produces high octane number gasoline

D. None of these
33. A typical yield of kerosene in straight run distillation of crude oil may be about __________________ percent?
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A. 10

B. 18

C. 26

D. 4

34. The general formula of naphthenes is___________________?
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A. CnH2n + 2

B. CnHn-4

C. Same as that for olefins i.e. CnH2n

D. CnH2n-6 (where, n ? 6)
35. Catalyst used in alkylation process is__________________?
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A. Alumina

B. Silica gel

C. Sulphuric acid

D. Nickel

36. Catalyst used in catalytic polymerisation which produces polymer gasoline is_________________?
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A. H2SO4

B. H3PO4

C. Both A. and B.

D. AlCl3

37. Octane number (unleaded) of gasoline produced by isomerisation of butane may be about __________________?
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A. 90

B. 55

C. 70

D. 45

38. Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its_________________?
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A. Molecular weight

B. Aromatics content

C. Both A. & B.

D. Neither a nor b

39. Higher vapour pressure of gasoline indicates _________________?
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A. Low flash point

B. High breathing loss

C. Both A. and B.

D. Neither A. nor B.
40. Hydrocracking employs ___________________?
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A. High pressure & temperature

B. Low pressure & temperature

C. High pressure and low temperature

D. High temperature and low pressure