Q156
In a typical medium speed 4-stroke cycle diesel engines
A.
Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center
AnswerB.
Exhaust valve opens at bottom dead center and closes at 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
Answer: Option A
Solution
Answer: Option A
Solution:
In a typical medium speed 4-stroke cycle diesel engines Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center