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Chemical Engineering :: Process Equipment and Plant Design

  1. Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to

  2. A.
    5 cms
    B.
    40% of the I.D. of the shell
    C.
    25 cms
    D.
    I.D. of the shell

  3. __________ liquor is best handled in a long tube vertical evaporator.

  4. A.
    Foamy
    B.
    Scaling
    C.
    Viscous
    D.
    Salting

  5. Theoretically calculated diameter of the stripping section of the continuous rectification column is __________ that of the enriching section.

  6. A.
    less than
    B.
    more than
    C.
    same as
    D.
    either more or less (depending upon relative volatility)

  7. Hold up of material in a operating rotary drier is in the range of

  8. A.
    0.05 to 0.15
    B.
    0.25 to 0.50
    C.
    0.5 to 0.8
    D.
    0.8 to 0.9

  9. A binary liquid azeotropic mixture has boiling point higher than either of the components, when it shows __________ deviation from Raoult's Law.

  10. A.
    positive
    B.
    negative
    C.
    no
    D.
    none of these

  11. The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about __________ times.the design pressure.

  12. A.
    1.5 to 2
    B.
    3 to 4
    C.
    4 to 5
    D.
    >5

  13. Flanges are connected to pipes by

  14. A.
    screwing
    B.
    welding
    C.
    brazing
    D.
    all (a), (b) and (c)

  15. The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

  16. A.
    0.5 to 1
    B.
    1 to 1.5
    C.
    1.5 to 2
    D.
    2 to 2.5

  17. Shortest distance between two tubes is

  18. A.
    called tube pitch.
    B.
    called tube clearance.
    C.
    more in case of triangular pitch as compared to square pitch of tube layout.
    D.
    none of these.