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  1. the most preferred process for casting gas turbine blades is

    2. A.

     Die casting
    B.

     Shell moulding
    C.

     Investment moulding
    D.

     Sand casting

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    Answer : Option B

    Explanation :

    Shell moulding is an expendable mold casting process that uses a resin covered sand to form the mold.

    the most preferred process for casting gas turbine blades is Shell moulding

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