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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

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  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.

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  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.

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  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

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  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'

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  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.

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  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

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  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.

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  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).

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  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

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