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  1. __________ can replace tungsten in high speed steel.

  2. A.
    Chromium
    B.
    Vanadium
    C.
    Cobalt
    D.
    Molybdenum

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  3. Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

  4. A.
    300
    B.
    800
    C.
    1400
    D.
    2000

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  5. Fatigue strength of a material can not be increased by

  6. A.
    cold working
    B.
    hot working
    C.
    shot peening
    D.
    any of these

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  7. Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

  8. A.
    tensile strength.
    B.
    compressive strength.
    C.
    Young's modulus.
    D.
    thermal co-efficient of expansion.

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  9. Out of the following the refractive index is the highest for

  10. A.
    glass
    B.
    diamond
    C.
    brine
    D.
    kerosene

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  11. Function of blow down valve in a boiler is to

  12. A.
    maintain the drum level.
    B.
    keep the drum pressure constant.
    C.
    drain out the sludge from the drum.
    D.
    empty the boiler during shutdown.

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  13. Insulation of liquid surface can be achieved by __________ on top of its surface.

  14. A.
    floating hollow polypropylene spheres
    B.
    spraying alumina powder
    C.
    putting cement
    D.
    none of these

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  15. Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50 wt% B is

  16. A.
    R ln 2
    B.
    -R ln 2
    C.
    3 R ln 2
    D.
    -3R ln 2

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  17. Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

  18. A.
    hexagonal close, packed (hcp)
    B.
    face centred cubic (fcc)
    C.
    body centred cubic (bcc)
    D.
    simple cubic

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  19. Cadmium in zinc leach liquor is removed by cementation using

  20. A.
    zinc
    B.
    iron
    C.
    nickel
    D.
    copper

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