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Chemical Engineering :: Petroleum Refinery Engineering

  1. Which of the following gasolines (unleaded) has the least octane number ?

  2. A.
    Catalytically cracked gasoline
    B.
    Straight run gasoline
    C.
    Catalytically reformed gasoline
    D.
    Polymer gasoline

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  3. Feed for reforming is generally

  4. A.
    naphtha or straight run gasoline.
    B.
    reduced crude.
    C.
    vacuum gas oil.
    D.
    atmospheric gas oil.

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  5. A fuel oil consists of 4 fractions A, B, C and D. Their molar compositions and vapour pressures are given below :

    The vapour pressure of the fuel oil will be __________ mm Hg.

  6. A.
    736
    B.
    727.5
    C.
    512
    D.
    767.8

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  7. Which of the following is the most important property for a jet fuel ?

  8. A.
    Cloud point
    B.
    Pour point
    C.
    Colour
    D.
    Freezing point

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  9. Which parameter is used for the grading of paraffin waxes ?

  10. A.
    Specific gravity
    B.
    Melting point
    C.
    Viscosity
    D.
    Penetration number

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  11. Which of the following has the minimum °API gravity of all?

  12. A.
    Diesel
    B.
    Kerosene
    C.
    Petrol
    D.
    Furnace oil

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  13. Higher pressure in the reforming reactor

  14. A.
    increases coke formation.
    B.
    increases the rate of reaction.
    C.
    produces high octane number gasoline.
    D.
    none of these.

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  15. Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight.

  16. A.
    85
    B.
    65
    C.
    50
    D.
    98

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  17. The main reaction in reforming is the

  18. A.
    dehydrogenation of naphthenes.
    B.
    hydrogenation of naphthenes.
    C.
    hydrocracking of paraffins.
    D.
    saturation of olefins.

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  19. Carbon percentage (by weight) in crude petroleum may be about

  20. A.
    65
    B.
    75
    C.
    85
    D.
    95

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