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Mechanical Engineering :: Workshop Technology

Workshop Technology - Section 1
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Workshop Technology - Section 3
Workshop Technology - Section 4
Workshop Technology - Section 5
Workshop Technology - Section 6
Workshop Technology - section-7
Workshop Technology - section-8

  1. When the dimension is expressed as , then the basic size is

    2. A.
    20 mm
    B.
    20.035 mm
    C.
    20.025 mm
    D.
    19.975 mm

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  2. In order to produce uniform packing of sand in the moulds, a __________ is used.

    3. A.
    sand slinger
    B.
    squeezing machine
    C.
    jolt machine
    D.
    stripper plate machine

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  3. The difference between the upper limit and lower limt of a dimension is called

    4. A.
    nominal size
    B.
    basic size
    C.
    actual size
    D.
    tolerance

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  4. Green sand is a mixture of

    5. A.
    30% sand and 70% clay
    B.
    50% sand and 50% clay
    C.
    70% sand and 30% clay
    D.
    90% sand and 10% clay

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  5. The diaphragm moulding machine is used to

    6. A.
    ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
    B.
    ram the sand harder at the back of the mould and softer on the pattern face
    C.
    produce uniform packing of sand in the mould
    D.
    give uniform sand hardness throughout the mould

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  6. A pattern is used to make the mould cavity for pouring the molten metal for casting.

    7. A.
    Yes
    B.
    No

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  7. The surface to be left unmachined is marked on the pattern by

    8. A.
    red colour
    B.
    yellow colour
    C.
    black colour
    D.
    blue colour

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  8. The two rolls in a two high rolling mills are of __________ size.

    9. A.
    equal
    B.
    different

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  9. The welding process used in joining mild steel shanks to high speed drills, is

    10. A.
    spot welding
    B.
    seam welding
    C.
    flash butt welding
    D.
    upset butt welding

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  10. The mode of deformation of the metal during spinning is

    11. A.
    bending
    B.
    stretching
    C.
    rolling and stretching
    D.
    bending and stretching

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