Across
- 4. Engine type that uses compression ignition.
- 8. Sprays fuel into a diesel engine.
- 12. A person who repairs motor vehicles.
- 14. Engine type that requires fuel, spark and compression.
- 17. Forces more air into the engine to increase power.
- 18. MOTOR Turns the engine when starting the vehicle.
- 19. Regular maintenance carried out on a vehicle.
- 20. The stroke that removes burnt gases.
- 21. PUMP Circulates engine oil to lubricate moving parts.
- 24. Opens and closes the engine valves.
- 25. The burning of fuel inside the engine.
- 27. Often called the "heart" of the vehicle.
- 29. Sends electricity to the correct spark plug in older petrol engines.
Down
- 1. . Allow air and fuel into the engine and let exhaust gases out.
- 2. This engine part moves up and down inside the cylinder.
- 3. A measurement of engine power.
- 5. The main driving unit in an electric vehicle.
- 6. Stores electrical energy to start the vehicle.
- 7. The process of reducing friction using oil.
- 9. PLUG Produces the spark needed in a petrol engine.
- 10. Charges the battery while the engine is running.
- 11. Vehicle powered by an electric motor.
- 13. The first stroke of the four-stroke cycle.
- 15. The stroke that produces useful engine power.
- 16. Converts the piston's up-and-down movement into rotary motion.
- 22. The liquid that absorbs heat from the engine.
- 23. The stroke where the air-fuel mixture is squeezed.
- 25. The piston moves inside this part of the engine.
- 26. This happens when the engine becomes too hot.
- 28. Keeps the engine cool by removing heat.