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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.

  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

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

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

  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

  9. Solvent used for dewaxing of petroleum products are

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

  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

  13. Deoiling of wax is done by its

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

  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

  17. Molecular weight of crude petroleum may be around

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

  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'