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  1. The electron beam welding can be carried out in

    2. A.

     Open air
    B.

     A shielded gas environment
    C.

     Vacuum
    D.

     A pressurized inert gas chamber

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    Workspace

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    Answer : Option C

    Explanation :

    Electron-beam welding. Electron-beam welding (EBW) is a fusion welding process in which a beam of high-velocity electrons is applied to two materials to be joined. .

    EBW is often performed under vacuum conditions to prevent dissipation of the electron beam.

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