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  1. A fluid is termed as the Newtonion fluid, when the shear stress is __________ the velocity gradient.

  2. A.
    independent of
    B.
    inversely proportional to
    C.
    directly proportional to
    D.
    none of these

  3. Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

  4. A.
    length of the pipe.
    B.
    diameter of the pipe.
    C.
    density of the fluid.
    D.
    velocity of the fluid.

  5. When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively

  6. A.
    decreases & increases.
    B.
    increases & increases.
    C.
    increases & decreases.
    D.
    decreases & decreases.

  7. Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

  8. A.
    SiO2
    B.
    Al2O3
    C.
    MnO2
    D.
    P

  9. The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

  10. A.
    carbon
    B.
    manganese
    C.
    both a & b
    D.
    neither 'a' nor 'b'

  11. The burnout heat flux in the nucleate boiling regime is not a function of the

  12. A.
    liquid density.
    B.
    vapour density.
    C.
    temperature difference.
    D.
    heat of evaporation.

  13. The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres

  14. A.
    25
    B.
    35
    C.
    55
    D.
    75

  15. The cathode in an electrochemical cell always carries

  16. A.
    negative charge.
    B.
    positive charge.
    C.
    zero charge.
    D.
    positive or negative charge depending upon the nature of the cell.

  17. An oxidation process is accompanied with decrease in the

  18. A.
    number of electrons.
    B.
    oxidation number.
    C.
    number of ions.
    D.
    all (a), (b) & (c).

  19. Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process ?

  20. A.
    Galvanising
    B.
    Tinning
    C.
    Sheardising
    D.
    none of these