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  • Question
  • 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.

  • Correct Answer
  • equal volume of aniline & the test sample are completely miscible. 


  • Petroleum Refinery Engineering problems


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    • 1. 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
    • 2. Percentage of straight run gasoline in a typical crude oil may be around

    • Options
    • A. 6
    • B. 18
    • C. 38
    • D. 52
    • Discuss
    • 3. Which of the following has maximum hydrogen/carbon ratio (by weight)?

    • Options
    • A. Naphtha
    • B. Gasoline
    • C. Diesel
    • D. Fuel oil
    • Discuss
    • 4. The best method of determining sulphur in crude oil is by the __________ method.

    • Options
    • A. Kjeldah
    • B. Duma
    • C. Bomb calorimeter
    • D. Junkar's calorimeter
    • Discuss
    • 5. Sweetening of petroleum product means the removal of

    • Options
    • A. sulphur & its compounds
    • B. water
    • C. organic impurities
    • D. wax
    • Discuss
    • 6. Most widely used solvent for dewaxing is

    • Options
    • A. methyl-ethyl-ketone (MEK)
    • B. naphtha
    • C. petroleum ether
    • D. sodium plumbite
    • Discuss
    • 7. Catalyst used in isomerisation process is

    • Options
    • A. H2SO4
    • B. H3PO4
    • C. HF
    • D. AlCl3
    • Discuss
    • 8. 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
    • 9. 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
    • 10. 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


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