What is the order of the correct working cycle of a four-stroke engine?

The correct order of the working cycle for a four-stroke engine is: induction, compression, power, and exhaust.

During the first stroke, the engine takes in a fuel-air mixture (induction). This is followed by the compression stroke, where the piston moves up in the cylinder, compressing the mixture. Once the piston reaches the top of the compression stroke, the spark plug ignites the mixture, resulting in the power stroke where the explosion forces the piston down. Finally, the exhaust stroke expels the combustion gases from the cylinder as the piston moves back up.

This sequence is fundamental to the operation of a four-stroke engine, as each stroke corresponds to a distinct phase in the cycle, ensuring that the engine operates efficiently and effectively. Understanding this order is crucial for studying engine mechanics and performance.