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6. What is the air/fuel ratio for hard acceleration?
7. What are the effects of hydrocarbons?
- Toxic to humans and animals
- Causes smog and acid rain
- Causes liver damage, breathing problems and cancers
- Causes global warming
8. What is the third stroke in the four stroke cycle?
- Exhaust
- Compression
- Power
- Induction
9. What is the purpose of the connecting rod?
- To attach the valves to the crankshaft
- To attach the pistons to the crankshaft
- To attach the valves to the camshaft
- To attach the pistons to the camshaft
10. What is the air/fuel ratio for an idling engine?
- 14:7.1
- 14.7:1
- 14:7:1
- 14.7.1
11. What is the second stroke in the four stroke cycle?
- Exhaust
- Induction
- Compression
- Power
12. What is the purpose of the piston rings?
- To stop oil leaking out of the cylinder
- To form a gas tight seal around the pistons
- To stop gases leaking into the cylinder
- To keep the piston in the correct position
13. What is the purpose of the camshaft
- To open the valves
- To turn the rotary motion of the wheels into up and down movement
- To close the valves
- To turn the up and down movement of the pistons into rotary motion
14. What is the purpose of the piston?
- To stop the gases escaping from the cylinder
- To compress the air and fuel mixture
- To close the valves
- To open the valves
15. What are the effects of carbon monoxide?
- Causes liver damage and cancer
- Causes global warming
- Toxic to animals and humans
- Causes cancer
16. What is the air/fuel ratio for over run?
- No fuel
- Nothing
- 0:0
- No air
17. What are the effects of oxides of nitrogen?
- Causes cancer
- Causes liver damage
- Causes breathing problems, smog and acid rain
- Causes global warming
18. What is the first stroke in the four stroke cycle?
- Exhaust
- Induction
- Power
- Compression
19. What is the air/fuel ratio for a cold start?
20. What is the fourth stroke in the four stroke cycle?
- Exhaust
- Power
- Compression
- Induction
