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  • Question

  • Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO2 extraction (Edeleanu process), its smoke point may become __________ mm.


  • Options
  • A. 5
  • B. 10
  • C. 25
  • D. 100

  • Correct Answer
  • 25 

    • Petroleum Refinery Engineering problems

    Search Results

    • 1. Naphtha yield in straight run distillation of crude oil may be about __________ percent.

    • Options
    • A. 2
    • B. 6
    • C. 12
    • D. 18
      • Discuss
    • 2. Natural gasoline is produced

    • Options
    • A. from oil wells
    • B. in oil refineries
    • C. by natural gas stripping
    • D. none of these
      • Discuss
    • 3. Research octane number refers to the

    • Options
    • A. low octane number motor fuels.
    • B. high octane number motor fuels.
    • C. high octane number aviation fuels.
    • D. unleaded motor fuels.
      • Discuss
    • 4. Octane numbers of motor gasoline used in India and America are respectively

    • Options
    • A. 87 & 94
    • B. 94 && 87
    • C. 94 && 100
    • D. 83 && 100
      • Discuss
    • 5. Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg.

    • Options
    • A. 600-750
    • B. 250-350
    • C. 1000-1500
    • D. 2000-2500
      • Discuss
    • 6. Polymerisation

    • Options
    • A. produces i-octane from cracked gases containing i-butane and butene.
    • B. causes olefins to combine with each other.
    • C. causes aromatics to combine with each other.
    • D. is aimed at producing lubricating oil.
      • Discuss
    • 7. Alkylation

    • Options
    • A. causes olefins to combine with each other.
    • B. causes olefins to combine with iso-paraffins.
    • C. converts iso-paraffin into olefin.
    • D. converts olefin into paraffin.
      • Discuss
    • 8. Presence of sulphur in gasoline

    • Options
    • A. leads to corrosion.
    • B. increases lead susceptibility.
    • C. decreases gum formation.
    • D. helps during stabilisation.
      • Discuss
    • 9. In case of liquid petrofuels, momentary combustion is observed at its

    • Options
    • A. flash point.
    • B. preheating temperature corresponding to viscosity of 25 centistokes.
    • C. flame temperature.
    • D. fire point.
      • Discuss
    • 10. In sweetening process, solutizer agent used with caustic alkali is

    • Options
    • A. potassium isobutyrate
    • B. sodium plumbite
    • C. methanol
    • D. phenol
      • Discuss

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