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Chemical Engineering :: Petroleum Refinery Engineering

  1. Lane and Garton classification of petroleum is based on its

  2. A.
    composition
    B.
    specific gravity
    C.
    optical properties
    D.
    viscosity

  3. With increase in the molecular weight of aromatic present in kerosene, its smoking tendency

  4. A.
    increases
    B.
    decreases
    C.
    remains same
    D.
    is unpredictable

  5. Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).

  6. A.
    0.03
    B.
    3
    C.
    35
    D.
    70

  7. Clay treatment is used to remove

  8. A.
    salt from the crude oil.
    B.
    colour & dissolved gases from cracked gasoline.
    C.
    wax from lube oil.
    D.
    none of these.

  9. Water separometer index (modified) (WSIM) of a petrofuel is the measure of its

  10. A.
    emulsification tendency.
    B.
    water separation characteristics.
    C.
    water content.
    D.
    water absorbing capacity from atmosphere.

  11. Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is

  12. A.
    more than 100
    B.
    round about 100
    C.
    between 50 and 100
    D.
    less than 25

  13. Pressure & temperature maintained in catalytic cracking is about

  14. A.
    2atm & 500°C
    B.
    10atm & 500°C
    C.
    30atm & 200°C
    D.
    50atm. & 750°C

  15. Pick out the wrong statement.

  16. A.
    Pensky-Marten apparatus is used for determining flash points above 50°C.
    B.
    Characterisation factor of paraffinic crude oil is more than 12.
    C.
    Abel apparatus is used for determining flash points below 50°C.
    D.
    An oil having high susceptibility to change in viscosity with temperature changes, has a high viscosity index.

  17. Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.

  18. A.
    1
    B.
    20
    C.
    100
    D.
    500

  19. Highest quality bitumen is produced from the __________ crude oil.

  20. A.
    paraffinic
    B.
    naphthenic
    C.
    intermediate
    D.
    mixed