Internal Combustion Engines - Mechanical Engineering Questions and Answers

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In a four stroke cycle petrol engine, the inlet valve

Opens at top dead center and closes at bottom dead center

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

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

May open or close anywhere

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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