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Mechanical Engineering :: Workshop Technology

  1. The low pressure acetylene is produced at the welding site by the chemical reaction between water and calcium carbonate.

  2. A.
    Correct
    B.
    Incorrect

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  3. The fullers are used

  4. A.
    for finishing flat surfaces
    B.
    for necking down a piece of work
    C.
    for punching a hole
    D.
    to finish the punched hole

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  5. The cold chisels are made by

  6. A.
    drawing
    B.
    rolling
    C.
    piercing
    D.
    forging

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  7. The property of sand due to which it evolves a great amount of steam and other gases is called

  8. A.
    collapsibility
    B.
    permeability
    C.
    cohesiveness
    D.
    adhesiveness

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  9. The centrifugal casting method, is used for casting articles of

  10. A.
    symmetrical shape about vertical axis
    B.
    symmetrical shape about horizontal axis
    C.
    irregular shape
    D.
    non-ferrous metal only

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  11. Metal patterns are used for

  12. A.
    small castings
    B.
    large castings
    C.
    complicated castings
    D.
    large scale production of castings

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  13. The instrument which has all the features of try-square, bevel protractor, rule and scriber, is

  14. A.
    outside micrometer
    B.
    inside micrometer
    C.
    depth gauge micrometer
    D.
    combination set

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  15. When a hole or cavity to be cored is not in line with the parting surface, then a __________ is used.

  16. A.
    horizontal core
    B.
    vertical core
    C.
    drop core
    D.
    balanced core

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  17. The bloom is smaller than a billet.

  18. A.
    True
    B.
    False

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  19. In average work, the tolerance produced by investment casting method is

  20. A.
    ±0.05 mm
    B.
    +0.2 mm
    C.
    +05 mm
    D.
    +1 mm

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