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  1. Water hammer is caused in steam carrying pipelines, because of

  2. A.
    partial condensation of steam.
    B.
    vibration of the pipeline.
    C.
    high degree of superheat of steam.
    D.
    its exposure to torrential rain.

  3. Powder metallurgy is used to produce

  4. A.
    high precision components with complex cavities and sharp features.
    B.
    components of large size.
    C.
    porosity free components.
    D.
    components of such alloys whose constituents do not form alloys readily.

  5. Catalyst used in the catalytic converter employed in automobiles to convert CO into CO and for complete oxidation of un-burnt hydrocarbons is

  6. A.
    nickel
    B.
    cobalt
    C.
    vanadium
    D.
    platinum

  7. For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure volume plot ?

  8. A.
    Temperature - entropy.
    B.
    Temperature - pressure.
    C.
    Enthalpy - entropy.
    D.
    Enthalpy-pressure.

  9. The main constituent of bones is

  10. A.
    CaF2
    B.
    Ca3(PO4)2
    C.
    CaCO3
    D.
    CaCl2

  11. Globular form of cementite is formed during the __________ process.

  12. A.
    spherodising
    B.
    hardening
    C.
    annealing
    D.
    normalising

  13. Faraday's law of electrolysis is related to the

  14. A.
    cation speed.
    B.
    atomic number of the cation.
    C.
    equivalent mass of the electrolyte.
    D.
    none of these.

  15. The two elements required to form substitutional solid solution should not have

  16. A.
    same crystalline structure.
    B.
    same valancy
    C.
    widely differing electronegativity.
    D.
    same atomic sizes.

  17. Rankine cycle comprises of two isothermal and two __________ processes.

  18. A.
    isobaric
    B.
    polytropic
    C.
    isentropic
    D.
    none of these