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

  • question_answer Consider the following statements:
    For precision machining of non-ferrous alloys diamond is preferred because it has
    1. Low coefficient of thermal expansion
    2. High compression strength
    3. High compression strength
    4. How fracture toughness
    Which of these statements are correct?

    A) 1 and 2            

    B) 2 and 4

    C) 2 and 3            

    D) 3 and 4

    Correct Answer: A

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