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Q:

The exhaust valve in a four stroke cycle petrol engine __________

A) opens at 50º before bottom dead center and closes at 15º after top dead center B) opens at bottom dead center and closes at top dead center
C) opens at 50º after bottom dead center and closes at 15º before top dead center D) may open or close anywhere
 

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

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