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Petroleum Refinery Engineering problems

  • 1. Cracking is

  • Options
  • A. an exothermic reaction.
  • B. an endothermic reaction.
  • C. favoured at very low temperature.
  • D. none of these.
    • Discuss
  • 2. Feed for reforming is generally

  • Options
  • A. naphtha or straight run gasoline.
  • B. reduced crude.
  • C. vacuum gas oil.
  • D. atmospheric gas oil.
    • Discuss
  • 3. Waxes present in petroleum products

  • Options
  • A. can be separated out by distillation.
  • B. are not soluble in them.
  • C. crystallise out at low temperature.
  • D. decrease their viscosity.
    • Discuss
  • 4. Paraffins are desirable in lubricating oil, as it has got high

  • Options
  • A. viscosity
  • B. viscosity index
  • C. smoke point
  • D. pour point
    • Discuss
  • 5. With increase in the molecular weight of aromatic present in kerosene, its smoking tendency

  • Options
  • A. increases
  • B. decreases
  • C. remains same
  • D. is unpredictable
    • Discuss
  • 6. Water separometer index (modified) (WSIM) of a petrofuel is the measure of its

  • Options
  • A. emulsification tendency.
  • B. water separation characteristics.
  • C. water content.
  • D. water absorbing capacity from atmosphere.
    • Discuss
  • 7. Good quality kerosene should have

  • Options
  • A. low smoke point.
  • B. high smoke point.
  • C. high aromatics content.
  • D. low paraffins content.
    • Discuss
  • 8. Which of the following has the lowest cetane number?

  • Options
  • A. Aromatics
  • B. i-paraffins
  • C. Naphthene
  • D. Olefins
  • E. n-paraffins
    • Discuss
  • 9. Highest quality bitumen is produced from the __________ crude oil.

  • Options
  • A. paraffinic
  • B. naphthenic
  • C. intermediate
  • D. mixed
    • Discuss
  • 10. Pressure & temperature maintained in catalytic cracking is about

  • Options
  • A. 2atm & 500°C
  • B. 10atm & 500°C
  • C. 30atm & 200°C
  • D. 50atm. & 750°C
    • Discuss

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