Which of the following sequences describes how a four stroke engine cycle powers engine?

I can help you by explaining the four strokes and how they work together to power the engine.

Here's a quick overview:

1. Intake Stroke: The piston moves down, creating a vacuum in the cylinder, drawing in a mixture of air and fuel.

2. Compression Stroke: The piston moves up, compressing the air-fuel mixture.

3. Power Stroke: The spark plug ignites the compressed mixture, causing it to explode and push the piston down, generating power.

4. Exhaust Stroke: The piston moves up again, pushing the exhaust gases out of the cylinder through the exhaust valve.

Once you provide the sequences, I can compare them to this process and help you identify the correct one.