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Chemical Engineering :: Petroleum Refinery Engineering

  1. Phenols are added in gasoline to

  2. A.
    improve the octane number.
    B.
    act as an antioxidant.
    C.
    reduce its viscosity.
    D.
    increase its pour point.

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  3. The pressure (kg/cm2 ) and temperature (°C) maintained in electrical desalters for crude oil are respectively

  4. A.
    10 and 120
    B.
    1 and 200
    C.
    50 and 250
    D.
    10 and 300

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  5. The average boiling point of aviation turbine fuel is closest to that of

  6. A.
    lubricating oils
    B.
    LPG
    C.
    diesel
    D.
    Kerosene

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  7. Crude oil is transported inland from oil field to refineries, mainly by the

  8. A.
    road tankers
    B.
    rail tankers
    C.
    underground pipelines
    D.
    none of these

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  9. Solvent used for dewaxing of petroleum products are

  10. A.
    furfural
    B.
    methyl ethyl ketone (MEK)
    C.
    propane
    D.
    both(b)&(c)

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  11. The most widely used crude topping column in refineries is the __________ column.

  12. A.
    bubble-cap
    B.
    packed bed
    C.
    fluidised bed
    D.
    perforated plate

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  13. Deoiling of wax is done by its

  14. A.
    heating
    B.
    cooling
    C.
    solvent extraction
    D.
    both(b)&(c)

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  15. Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.

  16. A.
    50
    B.
    70
    C.
    90
    D.
    140

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  17. Molecular weight of crude petroleum may be around

  18. A.
    50
    B.
    250
    C.
    1500
    D.
    5000

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  19. Mercaptans is represented as (where R and R' are alkyl groups)

  20. A.
    R-COOH
    B.
    R-S-H
    C.
    R-S-R
    D.
    R-S-R'

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