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  • Question
  • Hydrogen percentage (by weight) in crude petroleum may be about


  • Options
  • A. 5
  • B. 15
  • C. 25
  • D. 35

  • Correct Answer
  • 15 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. Which of the following is the most widely used cracking process in oil refineries?

    • Options
    • A. Dubbs process.
    • B. T.C.C. moving bed process.
    • C. Fluidised bed catalytic cracking process.
    • D. Houdry's fixed bed process.
    • Discuss
    • 2. Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with

    • Options
    • A. methyl alcohol
    • B. ethyl alcohol
    • C. methane
    • D. ethane
    • Discuss
    • 3. True vapour pressure of a petroleum fraction __________ Reid vapour pressure.

    • Options
    • A. is less than
    • B. is more than
    • C. is same as
    • D. may be either more or less than
    • Discuss
    • 4. Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C?

    • Options
    • A. Naphtha
    • B. Petrol
    • C. Kerosene
    • D. Heavy fuel oil
    • Discuss
    • 5. Crude topping column operates at __________ pressure.

    • Options
    • A. atmospheric
    • B. 10 atm
    • C. vacuum
    • D. 3 atm.
    • Discuss
    • 6. The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.

    • Options
    • A. 3
    • B. 300
    • C. 3000
    • D. 1000
    • Discuss
    • 7. Feedstock for polymerisation is

    • Options
    • A. naphtha.
    • B. cracked gases rich in C2 & C4 olefins.
    • C. low boiling aromatics.
    • D. none of these.
    • Discuss
    • 8. Octane number (unleaded) of gasoline produced by isomerisation of butane may be about

    • Options
    • A. 45
    • B. 55
    • C. 70
    • D. 90
    • Discuss
    • 9. Which of the following processes is used for the production of petroleum coke?

    • Options
    • A. Stabilisation
    • B. Visbreaking
    • C. Cracking
    • D. Reforming
    • Discuss
    • 10. Visbreaking

    • Options
    • A. uses natural gas as feed.
    • B. is carried out at atmospheric pressure.
    • C. produces fuel oil of lower viscosity.
    • D. produces gasoline only.
    • Discuss


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