Question 17 of 30
Exhaust valve in a Diesel engine ______
A
Stays in place
B
Opens and closes
C
Rotates in place
D
Moves up and down
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Answer & Explanation
The correct answer is Option B: Opens and closes.
The exhaust valve in a diesel engine is a critical component that opens to allow burned exhaust gases to exit the cylinder and closes to seal the combustion chamber during the compression and power strokes. Thus, it must open and close cyclically.