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

  • question_answer Consider the following statements in respect of fabrication of plastic products:
    1. Compression moulding is analogous to hot pressing of powdered metals.
    2. Jet moulding is a modification of compression moulding.                               
    3. Injection moulding is analogous to die casting of metals.
    4. Transfer moulding is similar to hydraulic extrusion.
    Which of these statements are correct?

    A) 1 and 2            

    B) 1 and 3

    C) 1, 2 and 4                     

    D) 2, 3 and 4

    Correct Answer: B

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