Railways Technical Ability Metal Forming, Casting and Cutting Question Bank Metal Casting

  • question_answer Which one of the following statements is correct? In green sand moulding process, uniform ramming leads to:

    A) Less sand expansion type of casting defect

    B) Greater dimensional stability of the casting

    C) Uniform flow of molten metal into the mould cavity

    D) Less chance of gas porosity

    Correct Answer: D

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