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IC Engines and Nuclear Power Plants
The exhaust valve in a four stroke cycle petrol engine
opens at 50° before bottom dead centre and closes at 15° after top dead centre
opens at bottom dead centre and closes at top dead centre
opens at 50° after bottom dead centre and closes at 15° before top dead centre
may open and close anywhere
Correct Answer:
opens at 50° before bottom dead centre and closes at 15° after top dead centre
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