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Chemical Engineering :: Process Equipment and Plant Design

  1. __________ of water makes it a widely used coolant in heat exchangers.

  2. A.
    Low corrosiveness
    B.
    Low dirt factor
    C.
    High specific heat
    D.
    Low viscosity

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  3. The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

  4. A.
    4 A/P
    B.
    A/P
    C.
    4 P/A
    D.
    A

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  5. Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

  6. A.
    containing suspended solids flows at low velocity.
    B.
    containing suspended solids flows at high velocity.
    C.
    is highly viscous.
    D.
    is of high specific gravity.

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  7. Lug support is meant for supporting __________ vessels.

  8. A.
    large horizontal cylindrical
    B.
    tall but empty
    C.
    small
    D.
    thick walled tall

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  9. Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.

  10. A.
    CO2
    B.
    SO2
    C.
    NH3
    D.
    none of these

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  11. Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate ?

  12. A.
    Triangular pitch.
    B.
    Square pitch.
    C.
    Diagonal square pitch.
    D.
    Heat transfer rate is independent of tube arrangement.

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  13. In case of 1.5" heat exchanger tubes, the inside flow area __________ with decrease in BWG.

  14. A.
    increases
    B.
    decreases
    C.
    remains same
    D.
    none of these

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  15. Cylindrical pressure vessels in horizontal condition is generally supported on a __________ support.

  16. A.
    lug
    B.
    skirt
    C.
    saddle
    D.
    guy wire

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  17. Pressure drop per tray in the atmospheric distillation column is about __________ psi.

  18. A.
    0.01 - 0.5
    B.
    0.07 - 0.12
    C.
    0.5 - 1.0
    D.
    1 - 3

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  19. Welded joint efficiency in the design of chemical process equipment is taken as

  20. A.
    0.55
    B.
    0.75
    C.
    0.85
    D.
    0.95

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