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Railways NTPC (Technical Ability) Theory of Machines and Machine Design Question Bank Theory of Machines

  • question_answer
      When the primary direct crank of a reciprocating engine is positioned at \[30{}^\circ \] clockwise, the secondary reverse crank for balancing will be at:         

    A) \[30{}^\circ \]anticlockwise        

    B) \[60{}^\circ \]anticlockwise

    C) \[30{}^\circ \]clockwise 

    D) \[60{}^\circ \]clockwise   

    Correct Answer: D

    Solution :

    \[\theta \] for secondary reverse crank \[=2\theta \] for primary direct frank in the same direction


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