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  1. The yield point in fatigue loading compared to that in static loading is less. The ratio of ultimate tensile strength to endurance limit of a material subjected to fatigue loading is

  2. A.
    0.5
    B.
    1
    C.
    1.5
    D.
    2

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  3. Which of the following is not used as a fuel in rocket propellaht ?

  4. A.
    Liquid hydrogen
    B.
    Liquid oxygen
    C.
    Liquid hydrazine
    D.
    Kerosene oil

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  5. Hypo (sodium thiosulphate) because of its complex forming behaviour is used in photography to remove undecomposed silver bromide as a soluble complex for __________ of the picture.

  6. A.
    printing
    B.
    developing
    C.
    colour
    D.
    fixation

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  7. Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

  8. A.
    copper
    B.
    steel
    C.
    aluminium
    D.
    brass

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  9. __________ welding will be the most suitable for butt welding two 20 cms thick boiler drum mild steel plates.

  10. A.
    Electrical resistance
    B.
    Electroslag
    C.
    Plasma torch
    D.
    Submerged arc

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  11. Machinability of hard alloys & tool steels is improved by

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

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  13. LASER

  14. A.
    stands for Light Amplification by Stimulated Emission of Radiation.
    B.
    has the same intensity as visible light.
    C.
    can't be used for cutting metals.
    D.
    none of these.

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  15. __________ forces do not act in case of fluids.

  16. A.
    Vibratory
    B.
    Centrifugal
    C.
    Elastic
    D.
    Tensile

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  17. Which of the following is not a natural abrasive ?

  18. A.
    Silicon carbide
    B.
    Quartz
    C.
    Corundum
    D.
    Emery

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  19. The function of a nozzle provided in steam turbine is to

  20. A.
    throttle down (i.e., reduce) the pressure of steam.
    B.
    convert internal energy into kinetic energy.
    C.
    increase the velocity of steam.
    D.
    all (a), (b) & (c).

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