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  • Question
  • Cetane number of alpha methyl naphthalene is assumed to be


  • Options
  • A. 0
  • B. 100
  • C. 50
  • D. ?

  • Correct Answer



  • Petroleum Refinery Engineering problems


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    • 1. Catalyst used in the catalytic polymerisation is

    • Options
    • A. phosphoric acid on kieselghur
    • B. aluminium chloride
    • C. nickel
    • D. vanadium pentaoxide
    • Discuss
    • 2. The characterisation factor of crude petroleum oil is around

    • Options
    • A. 3
    • B. 11
    • C. 22
    • D. 28
    • Discuss
    • 3. Aromatics are desired constituents of

    • Options
    • A. lubricating oil
    • B. diesel
    • C. kerosene
    • D. petrol
    • Discuss
    • 4. The main aim of cracking is to produce

    • Options
    • A. gasoline
    • B. lube oil
    • C. petrolatum
    • D. coke
    • Discuss
    • 5. Tetra-ethyl lead is added in gasoline to

    • Options
    • A. increase its smoke point.
    • B. reduce gum formation.
    • C. reduce the pour point.
    • D. increase its octane number.
    • Discuss
    • 6. LPG when brought to atmospheric pressure & temperature will be a

    • Options
    • A. liquid lighter than water.
    • B. liquid heavier than water.
    • C. gas lighter than air.
    • D. gas heavier than air.
    • Discuss
    • 7. Sour crude means the __________ bearing crude.

    • Options
    • A. asphalt
    • B. sulphur compounds
    • C. wax
    • D. nitrogen compounds
    • Discuss
    • 8. Pick out the correct statement pertaining to catalytic cracking.

    • Options
    • A. With increase in the reactor pressure, octane number of gasoline decreases.
    • B. With increase in the reactor temperature, gasoline yield decreases for a given conversion.
    • C. Percentage conversion increases with increase in the catalyst to oil ratio.
    • D. all (a), (b) and (c).
    • Discuss
    • 9. Hydrocracking employs

    • Options
    • A. high pressure & temperature.
    • B. low pressure & temperature.
    • C. high pressure and low temperature.
    • D. high temperature and low pressure.
    • Discuss
    • 10. Which of the following is an additive used for improving the cetane number of diesel?

    • Options
    • A. Tetraethyl lead
    • B. Tetramethyllead
    • C. Ethyl nitrate or acetone
    • D. None of these
    • Discuss


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