Internal Combustion Engines - Mechanical Engineering Questions and Answers

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In a typical medium speed 4-stroke cycle diesel engines

Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center

Exhaust valve opens at bottom dead center and closes at top dead center

Exhaust valve opens just after bottom dead center and closes just before top dead center

May open and close anywhere

Answer : Option A

Explanation :

In a typical medium speed 4-stroke cycle diesel engines Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center

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