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  • Question
  • 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.

  • Correct Answer
  • gasoline obtained has very high aromatic content. 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. Molecular weight of petrol may be about

    • Options
    • A. 40-60
    • B. 100-130
    • C. 250-300
    • D. 350-400
    • Discuss
    • 2. Which of the following petroleum products contain minimum sulphur?

    • Options
    • A. Naphtha
    • B. Kerosene
    • C. LSHS
    • D. Furnace oil
    • Discuss
    • 3. The terminology used for the bottom most product from the vacuum crude distillation unit is

    • Options
    • A. residual crude
    • B. residuum
    • C. reduced crude
    • D. petrolatum
    • Discuss
    • 4. LPG stands for

    • Options
    • A. liquid petroleum gas
    • B. liquified petrol gas
    • C. liquid petrol gas
    • D. liquefied petroleum gas
    • Discuss
    • 5. Clay treatment of petroleum products

    • Options
    • A. decolorises & stabilises cracked gasoline.
    • B. desulphurise straight run gasoline & kerosene.
    • C. adsorb arsenic from feedstock to catalytic reforming.
    • D. all (a), (b) & (c).
    • Discuss
    • 6. __________ base crude oil is also called asphaltic crude.

    • Options
    • A. Paraffinic
    • B. Naphthenic
    • C. Mixed
    • D. Aromatic
    • Discuss
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. Which is an anticing compound?

    • Options
    • A. Amyl nitrate
    • B. Alcohals
    • C. Mercaptans
    • D. Pyridine
    • Discuss


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