General Studies · Valve Timing
In a standard four-stroke internal combustion engine, which state describes the valves at the end of the compression stroke?
- 1Neither valve is open (both are closed)✓
- 2Both the inlet and exhaust valves are open
- 3The exhaust valve is wide open
- 4The inlet valve is wide open
Correct answer
Neither valve is open (both are closed)
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