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Mechanical Engineering
MEDIUM
ENGLISH
Mechanical Engineering
In a typical medium speed 4 stroke cycle diesel engine_______________?
exhaust valve opens at 35° before bot-tom dead center and closes at 20° after top dead center
Correct answer
B
exhaust valve opens at bottom ‘dead center and closes at top dead center
Option B
C
exhaust valve opens just after bottom dead center and closes just before top dead center
Option C
D
may open and close anywhere
Option D
Correct answer: A
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