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  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.

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  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.

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  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

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

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

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  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

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  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

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  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.

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  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.

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

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

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  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.

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