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  1. __________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

  2. A.

     Lancing

    B.

     Shot peening

    C.

     Slugging

    D.

     Spinning

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  3. Hydrogen in liquid steels is dissolved

  4. A.

     As tiny gas bubbles

    B.

     In the atomic form

    C.

     In the ionic form

    D.

     In the molecular form

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  5. Laser welding is widely employed in the __________ industries.

  6. A.

     Electronic

    B.

     Structural

    C.

     Process

    D.

     Heavy

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  7. Air refrigeration cycle is used in the air crafts, because of

  8. A.

     Low temperature encountered at high altitude

    B.

     Its high heat transfer rate

    C.

     Its low unit weight per ton of refrigeration

    D.

     Its higher co-efficient of performance (COP)

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  9. Which of the following contributes maximum as main source of sulphur in the blast furnace charge ?

  10. A.

     Sinter

    B.

     Coke

    C.

     Iron ore

    D.

     Limestone

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  11. Frost formation on the evaporator tubes in the domestic refrigerators

  12. A.

     Can be prevented by proper design

    B.

     Decreased compressor power

    C.

     Causes heat loss due to poor heat transfer

    D.

     Is immaterial

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  13. Milk is fat dispersed in water. It is an example of

  14. A.

     Suspension

    B.

     Emulsion

    C.

     Gel

    D.

     Solution

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  15. The velocity of sound in air is independent of changes in its

  16. A.

     Humidity

    B.

     Pressure

    C.

     Temperature

    D.

     None of these

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  17. The most important material handling system in an integrated steel plant is the

  18. A.

     Belt conveyor

    B.

     Diesel locomotive

    C.

     Truck

    D.

     Overhead hoists & cranes

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  19. Salvage value is the most flexible criteria for analysing a financial investment. 'Salvaging' means

  20. A.

     Disposing off a machine/property on as is where is basis

    B.

     Disposing off machine/property, which is no longer useful in the present scenerio

    C.

     Mortgaging the obsolete machine/property

    D.

     Writing off the obsolete machine/ property

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