Petroleum Refinery Engineering problems
- 1. Which of the following has maximum hydrogen/carbon ratio (by weight)?
Options- A. Naphtha
- B. Gasoline
- C. Diesel
- D. Fuel oil Discuss
Correct Answer: Gasoline
- 2. Percentage of straight run gasoline in a typical crude oil may be around
Options- A. 6
- B. 18
- C. 38
- D. 52 Discuss
Correct Answer: 52
- 3. Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has
Options- A. high pour point and low smoke point.
- B. low viscosity index.
- C. high self-ingnition temperature.
- D. all (a), (b) and.(c). Discuss
Correct Answer: low viscosity index.
- 4. Aniline point is the temperature at which
Options- A. equal weight of diesel & the aniline are completely miscible.
- B. equal weight of aniline & the test sample are completely miscible.
- C. equal volume of aniline & the test sample are completely miscible.
- D. aniline vaporises. Discuss
Correct Answer: equal volume of aniline & the test sample are completely miscible.
- 5. Most widely used solvent for dewaxing is
Options- A. methyl-ethyl-ketone (MEK)
- B. naphtha
- C. petroleum ether
- D. sodium plumbite Discuss
Correct Answer: methyl-ethyl-ketone (MEK)
- 6. Catalyst used in isomerisation process is
Options- A. H2SO4
- B. H3PO4
- C. HF
- D. AlCl3 Discuss
Correct Answer: AlCl3
- 7. Pyrolysis of kerosene or natural gasoline is done to produce mainly the
Options- A. olefins and aromatics
- B. lighter paraffins
- C. stabilised gasoline
- D. diesel Discuss
Correct Answer: olefins and aromatics
- 8. Higher vapour pressure of gasoline indicates
Options- A. low flash point
- B. high breathing loss
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
Correct Answer: neither (a) nor (b)
- 9. Aromatics have the highes __________ of all the hydrocarbons of same carbon atoms.
Options- A. smoke point
- B. octane number
- C. cetane number
- D. viscosity Discuss
Correct Answer: octane number
- 10. Catalyst used in alkylation process is
Options- A. sulphuric acid
- B. nickel
- C. silica gel
- D. alumina Discuss
Correct Answer: sulphuric acid
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