Q
In a typical medium speed 4 stroke cycle diesel engine_______________?
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A
A. Exhaust valve opens at 35° before bot-tom dead center and closes at 20° after top dead center
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B
B. Exhaust valve opens at bottom ‘dead center and closes at top dead center
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C
C. Exhaust valve opens just after bottom dead center and closes just before top dead center
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D
D. May open and close anywhere
Correct Answer:
A. A. Exhaust valve opens at 35° before bot-tom dead center and closes at 20° after top dead center
