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

  • question_answer Which one of the correct relationship between surface velocity of the roils\[({{V}_{r}})\], entrance velocity of work \[({{V}_{0}})\] and exit velocity of work \[({{V}_{f}})\] in rolling?

    A) \[{{V}_{0}}<{{V}_{r}}<{{V}_{f}}\]              

    B) \[{{V}_{f}}<{{V}_{r}}<{{V}_{0}}\]

    C) \[{{V}_{r}}<{{V}_{f}}<{{V}_{0}}\]              

    D) \[{{V}_{0}}<{{V}_{f}}<{{V}_{r}}\]

    Correct Answer: A

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