Question

1. which stroke brings oxygen into the cylinder?

1. which stroke creates an explosion in the engine?

1. what is the purpose of the catalytic converter?

1. what is the purpose of the second stroke of an engine?

1. what is the purpose of the fourth stroke of the engine?

1. list all the steps in order from putting fuel in your car to the muffler.

Explanation:

1. The intake stroke draws in a mixture of air (containing oxygen) and fuel into the cylinder.
2. The power stroke creates an explosion when the air - fuel mixture is ignited, driving the piston down.
3. A catalytic converter reduces harmful pollutants in exhaust gases by converting them into less harmful substances through chemical reactions.
4. In a four - stroke engine, the second stroke (compression stroke) compresses the air - fuel mixture, increasing its temperature and pressure.
5. The fourth stroke (exhaust stroke) expels the burned exhaust gases from the cylinder.
6. Steps: Fuel is pumped from the tank to the engine. It mixes with air in the intake manifold. The intake stroke brings the mixture into the cylinder. The compression stroke compresses it. The power stroke ignites and pushes the piston. The exhaust stroke expels the gases to the exhaust system, which leads to the muffler.

Answer:

1. Intake stroke
2. Power stroke
3. To reduce harmful pollutants in exhaust gases
4. To compress the air - fuel mixture
5. To expel burned exhaust gases
6. Fuel is pumped from tank to engine, mixes with air in intake manifold, intake stroke brings mixture into cylinder, compression stroke compresses it, power stroke ignites and pushes piston, exhaust stroke expels gases to exhaust system and then to muffler.