Railways Technical Ability Production Engineering and Planning Question Bank Production Planning

  • question_answer The double slider-crank chain is shown in the diagram its three possible inversions. The link shown hatched is the fixed link. Which one of the following statement is correct?

    A) Inversion (1) is for ellipse trammel and inversion (2) is for Oldham coupling.

    B) Inversion (1) is for ellipse trammel and inversion (3) is for Oldham coupling.

    C) Inversion (2) is for ellipse trammel and inversion (3) is for Oldham coupling.

    D) Inversion (3) is for ellipse trammel and inversion (2) is for Oldham coupling.

    Correct Answer: A

    Solution :

    For elliptical trammel, link 4 is fixed and for Oldham's coupling, link 2 is fixed.

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