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  1. Scribing block is used to

    2. A.

     Hold the round bars during marking
    B.

     Check the trueness of flat surfaces
    C.

     Locate the centres of round bars
    D.

     Check the surface roughness

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    Workspace

    View Answer

    Answer : Option B

    Explanation :

    scribing block is a gauge consisting of a scriber mounted on an adjustable stand; used to test the accuracy of plane surfaces.

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