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  • Question
  • 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).

  • Correct Answer
  • both (a) and (b). 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. 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
    • 2. 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
    • 3. __________ base crude oil is also called asphaltic crude.

    • Options
    • A. Paraffinic
    • B. Naphthenic
    • C. Mixed
    • D. Aromatic
    • Discuss
    • 4. In catalytic cracking, the

    • Options
    • A. gasoline obtained has a very low octane number.
    • B. pressure & temperature is very high.
    • C. gasoline obtained has very high aromatic content.
    • D. gasoline obtained has very high amount of gum forming compounds.
    • Discuss
    • 5. Molecular weight of petrol may be about

    • Options
    • A. 40-60
    • B. 100-130
    • C. 250-300
    • D. 350-400
    • Discuss
    • 6. Which is an anticing compound?

    • Options
    • A. Amyl nitrate
    • B. Alcohals
    • C. Mercaptans
    • D. Pyridine
    • Discuss
    • 7. 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
    • 8. 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.
    • Discuss
    • 9. 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
    • 10. A multigrade lubricating oil means an oil having high

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


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