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  1. Which of the following methods can be used for manufacturing 2 meter long seamless metallic tubes?

    2. A.

     Drawing
    B.

     Extrusion
    C.

     Rolling
    D.

     Extrusion and rolling

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    Workspace

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    Answer : Option D

    Explanation :

    Extrusion is a process used to create objects of a fixed cross-sectional profile. A material is pushed through a die of the desired cross-section.
    rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness and to make the thickness uniform.

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