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Home Chemical Engineering Petroleum Refinery Engineering Comments

  • Question
  • Pick out the wrong statement.


  • Options
  • A. A pale color of petroleum product indicates lower viscosity.
  • B. Color of petroleum products indicates the degree of refinement.
  • C. Lighter petroleum distillates are lighter in color than the heavier residual oils.
  • D. Flouroscene of oils helps to detect its adulteration.

  • Correct Answer
  • A pale color of petroleum product indicates lower viscosity. 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. Waxy crudes are treated with chemical additives mainly to

    • Options
    • A. depress its pour point
    • B. dissolve wax
    • C. precipitate wax
    • D. remove wax
    • Discuss
    • 2. Which is an anticing compound?

    • Options
    • A. Amyl nitrate
    • B. Alcohals
    • C. Mercaptans
    • D. Pyridine
    • Discuss
    • 3. Concentration of H2SO4 catalyst in alkyla-tion is kept between 90-98%, because H2SO4 having concentration

    • Options
    • A. less than 90% promotes polymerisation.
    • B. more than 98% promotes cracking.
    • C. both (a) and (b).
    • D. neither (a) nor (b).
    • Discuss
    • 4. Which of the following factors does not govern the mechanism of petroleum formation from organic sources?

    • Options
    • A. pH of the soil
    • B. Bacterial action
    • C. Heat
    • D. Pressure
    • Discuss
    • 5. Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil?

    • Options
    • A. Modern theory
    • B. Carbide theory
    • C. Engler theory
    • D. all (a), (b) and (c)
    • Discuss
    • 6. Water content in the crude oil as it comes out of oil well may be upto __________ percent.

    • Options
    • A. 2
    • B. 5
    • C. 10
    • D. 25
    • Discuss
    • 7. A multigrade lubricating oil means an oil having high

    • Options
    • A. viscosity index
    • B. viscosity
    • C. aniline point
    • D. flash point
    • Discuss
    • 8. Reforming converts

    • Options
    • A. olefins into paraffins
    • B. naphthenes into aromatics
    • C. naphthenes into olefins.
    • D. naphthenes into paraffin.
    • Discuss
    • 9. Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.

    • Options
    • A. 1
    • B. 50
    • C. 5000
    • D. 10000
    • Discuss
    • 10. Reforming

    • Options
    • A. uses naphtha as feedstock.
    • B. does not much affect the molecular weight of the feed.
    • C. improves the quality & yield of gasoline.
    • D. all (a), (b) and (c).
    • Discuss


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