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  • Question
  • Aromatics have the highes __________ of all the hydrocarbons of same carbon atoms.


  • Options
  • A. smoke point
  • B. octane number
  • C. cetane number
  • D. viscosity

  • Correct Answer
  • octane number 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. Higher vapour pressure of gasoline indicates

    • Options
    • A. low flash point
    • B. high breathing loss
    • C. both (a) and (b)
    • D. neither (a) nor (b)
    • Discuss
    • 2. Pyrolysis of kerosene or natural gasoline is done to produce mainly the

    • Options
    • A. olefins and aromatics
    • B. lighter paraffins
    • C. stabilised gasoline
    • D. diesel
    • Discuss
    • 3. Catalyst used in isomerisation process is

    • Options
    • A. H2SO4
    • B. H3PO4
    • C. HF
    • D. AlCl3
    • Discuss
    • 4. Most widely used solvent for dewaxing is

    • Options
    • A. methyl-ethyl-ketone (MEK)
    • B. naphtha
    • C. petroleum ether
    • D. sodium plumbite
    • Discuss
    • 5. Aniline point is the temperature at which

    • Options
    • A. equal weight of diesel & the aniline are completely miscible.
    • B. equal weight of aniline & the test sample are completely miscible.
    • C. equal volume of aniline & the test sample are completely miscible.
    • D. aniline vaporises.
    • Discuss
    • 6. Catalyst used in alkylation process is

    • Options
    • A. sulphuric acid
    • B. nickel
    • C. silica gel
    • D. alumina
    • Discuss
    • 7. Road grade bitumen is produced from vacuum residue by its

    • Options
    • A. aeration
    • B. pyrolysis
    • C. hydrogenation
    • D. steam reforming
    • Discuss
    • 8. Liquefied Petroleum Gas (LPG) is mainly a mixture of

    • Options
    • A. propane & butane
    • B. methane & ethane
    • C. high boiling olefins
    • D. high boiling naphthenes
    • Discuss
    • 9. "Breathing loss" on storage of gasoline occurs due to the

    • Options
    • A. presence of unsaturated air.
    • B. fluctuation of ambient temperature during day and night.
    • C. both (a) and (b).
    • D. neither (a) nor (b).
    • Discuss
    • 10. Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.

    • Options
    • A. unsaturated hydrocarbon content
    • B. calorific value
    • C. quantity of propane
    • D. quantity of butane
    • Discuss


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