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Home Chemical Engineering Petroleum Refinery Engineering Comments

  • Question
  • LSHS is a type of furnace oil, which


  • Options
  • A. is more viscous than high viscosity furnace oil (HVFO).
  • B. stands for low sulphur heavy stock.
  • C. is an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%).
  • D. all (a), (b) and (c).

  • Correct Answer
  • all (a), (b) and (c). 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. With increase in density, the viscosity of petroleum products

    • Options
    • A. increases
    • B. decreases
    • C. remains same
    • D. either (a) or (b)
    • Discuss
    • 2. Carbon/hydrogen ratio (by weight) is maximum (out of following) for

    • Options
    • A. gasoline
    • B. kerosene
    • C. light gas oil
    • D. heavy fuel oil
    • Discuss
    • 3. Smoke point of kerosene expresses its

    • Options
    • A. burning characteristics.
    • B. luminosity characteristics.
    • C. aromatic content directly.
    • D. lamp wick wetting characteristics.
    • Discuss
    • 4. Isomerisation converts the __________ tot-paraffins.

    • Options
    • A. paraffins
    • B. olefins
    • C. naphthenes
    • D. none of these
    • Discuss
    • 5. Aniline point test of an oil qualitatively indicates the __________ content of an oil.

    • Options
    • A. paraffin
    • B. olefin
    • C. aromatic
    • D. naphthene
    • Discuss
    • 6. Which of the following has the highest octane number?

    • Options
    • A. Aromatics
    • B. i-paraffins
    • C. Naphthenes
    • D. Olefins
    • E. n-paraffins
    • Discuss
    • 7. Cetane number of high speed diesel must be ?

    • Options
    • A. 30
    • B. 45
    • C. 75
    • D. 95
    • Discuss
    • 8. Specific gravity of a petroleum product gives an indication of its

    • Options
    • A. degree of refinement.
    • B. hydrocarbon content type (aromatic or paraffinic).
    • C. ease of atomisation.
    • D. sulphur content.
    • Discuss
    • 9. Detergent is added as an additive in engine lubricating oil to

    • Options
    • A. reduce deposit formation.
    • B. keep contaminants in suspension.
    • C. increase oxidation stability.
    • D. prevent rusting.
    • Discuss
    • 10. The most commonly used feed stock for the reforming reactor is

    • Options
    • A. heavy fuel oil
    • B. residuum
    • C. straight run gasdine
    • D. casing head gasoline
    • Discuss


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