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Discussion :: Internal Combustion Engines

  1. In a four stroke cycle petrol engine, the inlet valve

  2. A.

     Opens at top dead center and closes at bottom dead center

    B.

     Opens at 20° before top dead center and closes at 40° after bottom dead center

    C.

     Opens at 20° after top dead center and closes at 20° before bottom dead center

    D.

     May open or close anywhere

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    Answer : Option B

    Explanation :

    In a four stroke cycle petrol engine, the inlet valve Opens at 20° before top dead center and closes at 40° after bottom dead center


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