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    Which type of excavation is used for laying large pipelines?
    Question

    Which type of excavation is used for laying large pipelines?

    A.

    Muck excavation

    B.

    Rock excavation

    C.

    Trench excavation

    D.

    Open excavation

    Correct option is C

    Trench excavation is specifically used for laying large pipelines, sewers, cables, and similar underground utilities.

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