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  1. Potable water means the water used for

  2. A.
    fire-fighting
    B.
    cooling
    C.
    drinking
    D.
    evaporation to produce steam

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  3. One ton of refrigeration is not equivalent to the heat removal rate of

  4. A.
    200 BTU/minute
    B.
    50 kcal/minute
    C.
    50 kJ/sec.
    D.
    3.5 KW

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  5. Starting friction is low in case of the __________ lubrication.

  6. A.
    boundary
    B.
    hydrodynamic
    C.
    hydrostatic
    D.
    mixed/semi-fluid

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  7. Ultimate strength in tension as compared to that in shear for steel is

  8. A.
    half
    B.
    one third
    C.
    one and half times
    D.
    one fourth

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  9. Which of the following heat treatment processes is usually applied to castings ?

  10. A.
    Tempering
    B.
    Annealing
    C.
    Normalising
    D.
    Carburising

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  11. Photographic plates are coated with

  12. A.
    silver nitrate
    B.
    silver halide
    C.
    calcium silicate
    D.
    metallic silver

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  13. Hardening of steel is not possible, unless it is heated __________ critical point.

  14. A.
    above the highest
    B.
    above the lowest
    C.
    between the first & second
    D.
    between the second & third

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  15. Isotropic materials have the same __________ in all directions.

  16. A.
    induced stresses
    B.
    density
    C.
    elastic properties
    D.
    thermal properties

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  17. The most important requirement for aluminium industry is the availability of cheap

  18. A.
    ore
    B.
    electrical power
    C.
    labour
    D.
    & abundant water

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  19. Spheriodising of a material is a/an __________ process.

  20. A.
    normalising
    B.
    annealing
    C.
    tempering
    D.
    hardening

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