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  1. Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

  2. A.
    2
    B.
    3
    C.
    0.8
    D.
    6

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  3. __________ is the hardest material out of the following.

  4. A.
    Boron carbide
    B.
    Tungsten carbide
    C.
    Hardened steel
    D.
    Silicon carbide

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  5. The phenomenon of weld decay is found in case of

  6. A.
    gun metal
    B.
    brass
    C.
    stainless steel
    D.
    cast iron

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  7. If a solid is compressed adiabatically in its elastic range, its __________ remains constat

  8. A.
    internal energy
    B.
    enthalpy
    C.
    entropy
    D.
    temperature

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  9. 'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and

  10. A.
    petrol.
    B.
    LPG.
    C.
    light hydrocarbon gases (e.g. butane or propane).
    D.
    none of these.

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  11. On decreasing the grain size of a polycrys-talline material, the property most likely to deteriorate is

  12. A.
    creep
    B.
    toughness
    C.
    tensile strength
    D.
    fatigue

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  13. It is possible to form martensite

  14. A.
    sometimes by cold working.
    B.
    sometimes without nucleation.
    C.
    sometimes by gas quenching.
    D.
    only in iron based alloys.

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  15. Which of the following material handling equipments is not suitable for moving materials in varying paths ?

  16. A.
    Hand trolley
    B.
    Belt conveyor
    C.
    Crane
    D.
    Truck

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  17. The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

  18. A.
    wetness
    B.
    mass flow rate
    C.
    both 'a' & 'b'
    D.
    neither 'a' nor 'b'

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  19. Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

  20. A.
    746
    B.
    3000
    C.
    1000
    D.
    550

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