The five events of a four-stroke cycle engine in the order of their occurrence are?

In a four-stroke cycle engine, the sequence of events is crucial to its operation and efficiency. The correct order is intake, compression, ignition, power, and exhaust.

During the intake stroke, the engine draws in an air-fuel mixture as the intake valve opens and the piston moves down. Next, in the compression stroke, the piston moves back up, compressing the air-fuel mixture within the cylinder, which increases its temperature and pressure in preparation for ignition.

The ignition phase occurs when the compressed air-fuel mixture is ignited by a spark from the spark plug, resulting in rapid combustion. This combustion produces a significant amount of heat and pressure, leading to the power stroke, where the piston is forced down by the expanding gases, creating mechanical power for the engine.

Finally, in the exhaust stroke, the exhaust valve opens and the piston moves back up to expel the spent gases from the combustion process, purging the cylinder in preparation for the next intake stroke.

Understanding this sequence is critical for comprehending how a four-stroke engine operates, as each event directly impacts the engine's overall performance and efficiency.