In a typical medium speed 4 stroke cycle diesel engine_______________?

A. exhaust valve opens at bottom dead center and closes at top dead center

B. exhaust valve opens at 35 before bot-tom dead center and closes at 20 after top dead center

C. exhaust valve opens just after bottom dead center and closes just before top dead center

D. may open and close anywhere

E. none of the above is true

Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.