Given below are the strokes of a 4-stroke S.I. engine. Arrange them in their correct sequence:
Choose the correct answer from the options given below:
The standard four strokes of a four-stroke internal combustion engine occur in the following sequence:
- Suction stroke (A): Fresh air-fuel mixture is drawn into the cylinder.
- Compression stroke (B): The charge is compressed by the piston moving to TDC.
- Expansion/Power stroke (C): Spark ignites mixture, burning gases expand and drive piston down.
- Exhaust stroke (D): Burnt gases/smoke are expelled through the exhaust valve.