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Chemical Engineering :: Chemical Engineering Basics

  1. Baffles provided on the shell side of a shell and tube heat exchanger are meant for

  2. A.
    providing support for the tubes.
    B.
    improving heat transfer.
    C.
    both 'a' & 'b'.
    D.
    preventing the fouling of tubes & stagnation of shell side fluid.

  3. When an isolated thermodynamic system executes a process,

  4. A.
    work is done.
    B.
    heat transfer takes place.
    C.
    mass flow occurs across the boundary of the system.
    D.
    no chemical reaction takes place within the system.

  5. Brittleness induced due to the presence of sulphur in steel can be reduced by adding

  6. A.
    manganese
    B.
    magnesium
    C.
    vanadium
    D.
    copper

  7. Atomic __________ of an element is a whole number.

  8. A.
    weight
    B.
    number
    C.
    volume
    D.
    radius

  9. The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to __________ °D.

  10. A.
    140
    B.
    180
    C.
    240
    D.
    280

  11. Which of the following is an unconventional source of energy ?

  12. A.
    Thermal power
    B.
    Hydroelectric power
    C.
    Nuclear-fusion power
    D.
    Solar power

  13. The product (s) of roasting of a sulphide ore is (are)

  14. A.
    oxide only.
    B.
    sulphate only.
    C.
    oxide and sulphate.
    D.
    dependent on temperature and partial pressure of oxygen & sulphur dioxide.

  15. Which of the following are considered applications of ultrasonic testing ?

  16. A.
    Determination of elastic constant.
    B.
    Detection of defects in metal.
    C.
    Measurement of material thickness.
    D.
    None of the above.

  17. Suitability of steel for its use in cable is judged by its strength in

  18. A.
    tension
    B.
    compression
    C.
    torsion
    D.
    shear

  19. Hydrogen in liquid steels is dissolved

  20. A.
    as tiny gas bubbles.
    B.
    in the atomic form.
    C.
    in the ionic form.
    D.
    in the molecular form.