Q78
The exhaust valve in a four stroke cycle petrol engine
A.
Opens at 50° before bottom dead center and closes at 15° after top dead center
AnswerB.
Opens at bottom dead center and closes at top dead center
C.
Opens at 50° after bottom dead center and closes at 15° before top dead center
D.
May open and close anywhere
Answer: Option A
Solution
Answer: Option A
Solution:
The exhaust valve in a four stroke cycle petrol engine Opens at 50° before bottom dead center and closes at 15° after top dead center