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  • Question
  • Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about


  • Options
  • A. 0.1
  • B. 1
  • C. 2.5
  • D. 3.5

  • Correct Answer



  • Petroleum Refinery Engineering problems


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    • 1. In petroleum refining, the process used for conversion of hydrocarbons to aromatics is

    • Options
    • A. catalytic cracking
    • B. catalytic reforming
    • C. hydrotreating
    • D. alkylation
    • Discuss
    • 2. The colour of gasoline is an indication of its

    • Options
    • A. octane number.
    • B. lead susceptibility.
    • C. gum forming tendency & thoroughness of refining.
    • D. none of these.
    • Discuss
    • 3. Flash point of motor gasoline may be around __________ °C.

    • Options
    • A. 10
    • B. 45
    • C. 100
    • D. 150
    • Discuss
    • 4. Solvent used in the deasphalting process is

    • Options
    • A. furfurol
    • B. phenol
    • C. propane
    • D. hexane
    • Discuss
    • 5. The main use of heavy gas oil produced by the vacuum distillation unit is as a

    • Options
    • A. blending component for kerosene.
    • B. blending component for petrol.
    • C. feedstock for fluid catalytic cracking unit.
    • D. none of these.
    • Discuss
    • 6. Diesel used in naval applications has a minimum cetane number of

    • Options
    • A. 25
    • B. 35
    • C. 45
    • D. 65
    • Discuss
    • 7. Visbreaking process is used mainly for making

    • Options
    • A. high cetane diesel
    • B. high octane gasoline
    • C. fuel oil
    • D. smoke free kerosene
    • Discuss
    • 8. Octane number of gasoline is a measure of its

    • Options
    • A. resistance to knock.
    • B. ignition delay.
    • C. ignition temperature.
    • D. smoke point.
    • Discuss
    • 9. Mercaptans are

    • Options
    • A. low boiling sulphur compounds.
    • B. added in LPG cylinders to detect gas leakage by its smell.
    • C. undesirable in petrol, as they reduce its octane number.
    • D. all (a), (b) and (c)
    • Discuss
    • 10. Casing head gasoline is the liquid

    • Options
    • A. butane.
    • B. propane.
    • C. natural gas.
    • D. gasoline separated from wet natural gas by compression.
    • Discuss


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