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  • Question
  • Straight run petrol as compared to methyl/ethyl alcohol has


  • Options
  • A. lower calorific value.
  • B. lower octane number.
  • C. higher specific gravity.
  • D. higher ignition temperature.

  • Correct Answer
  • lower octane number. 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. Aniline point is the

    • Options
    • A. characteristic property of diesel & lubricating oils.
    • B. measure of aromatic content of oil.
    • C. both (a) and (b).
    • D. neither (a) nor (b).
    • Discuss
    • 2. Which of the following has the highest gum forming tendency in gosoline?

    • Options
    • A. Paraffins
    • B. Diolefins
    • C. Aromatics
    • D. Naphthenes
    • Discuss
    • 3. Which of the following has the lowest flash point of all?

    • Options
    • A. Diesel
    • B. Kerosene
    • C. Petrol
    • D. Furnace oil
    • Discuss
    • 4. Higher viscosity of lubricating oil usually signifies

    • Options
    • A. lower Reid vapour pressure.
    • B. higher acid number.
    • C. higher flash point and fire point.
    • D. lower flash point and fire point.
    • Discuss
    • 5. Removal of light fractions from crude oil is called its

    • Options
    • A. sweetening
    • B. dehydration
    • C. stabilisation
    • D. visbreaking
    • Discuss
    • 6. Liquefied petroleum Gas (LPG) used for the household cooking comprises mainly of

    • Options
    • A. propane & butane
    • B. butane & ethane
    • C. methane & ethane
    • D. methane & carbon monoxide
    • Discuss
    • 7. Penetration test determines the __________ of the grease.

    • Options
    • A. stiffness
    • B. lubricating properties (e.g. oilness)
    • C. service temperature
    • D. variation in viscosity with temperature
    • Discuss
    • 8. Mercaptans are added to liquefied petroleum gas (LPG) to

    • Options
    • A. reduce its cost.
    • B. narrow down its explosion limit.
    • C. assist in checking its leakage from cylinder.
    • D. increase its calorific value.
    • Discuss
    • 9. A petroleum well is called 'dry', if it contains

    • Options
    • A. very little oil.
    • B. no natural gas.
    • C. only natural gas.
    • D. all (a), (b) and (c).
    • Discuss
    • 10. Maximum use of petroleum coke is in

    • Options
    • A. adsorption refining operation.
    • B. fuel gas manufacture.
    • C. carbon electrode manufacture.
    • D. iron ore reduction.
    • Discuss


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