In a four stroke cycle diesel engine, the exhaust valve __________ – McqOptions

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1.	In a four stroke cycle diesel engine, the exhaust valve __________
A.	opens at 30º before bottom dead center and closes at 10º after top dead center
B.	opens at bottom dead center and closes at top dead center
C.	opens at 30º after bottom dead center and closes at 10º before top dead center
D.	may open or close anywhere
Answer» B. opens at bottom dead center and closes at top dead center

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