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  1. Metal patterns are used for

    2. A.

     Small castings
    B.

     Large castings
    C.

     Complicated castings
    D.

     Large scale production of castings

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    Answer : Option D

    Explanation :

    Patterns come in many materials, including wood, metal, plastics, and wax. The pattern material is chosen based on the casting volume and process used. Wood and metal patterns are usually used with sand casting, while wax is rarely used for anything but investment casting.

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