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Railways NTPC (Technical Ability) Metal Forming, Casting and Cutting Question Bank Metal Casting

  • question_answer
    Which of the following materials can be used for making patterns?
    1. Aluminium                
    2. Wax
    3. Mercury                    
    4. Lead
    Select the correct answer using the codes below:

    A) 1, 3 and 4                     

    B) 2, 3 and 4

    C) 1, 2 and 4                     

    D) 1, 2 and 3

    Correct Answer: C

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