Car Parts Quiz

1. The blower fan runs at full speed, but airflow from the dashboard vents remains weak. Which replaceable part may be clogged?

2. After a car sits overnight, its lights are dim and the starter turns the engine slowly. Which component normally supplies the stored electrical energy for starting?

3. What does an oxygen sensor primarily measure?

4. Coolant is reaching the front heat exchanger, but damaged and blocked fins prevent it from releasing enough heat to the air. Which component is affected?

5. A front-wheel-drive car makes a repeated clicking sound during tight turns, especially under acceleration. Which part commonly causes this symptom when worn?

6. A brake pedal and steering wheel pulse mainly while the car is braking. Which component is most likely to have an uneven friction surface?

7. Which component is designed to break an electrical circuit when current becomes excessive?

8. Which exhaust-system component converts certain harmful exhaust gases into less harmful substances through chemical reactions?

9. Which component precisely meters and sprays fuel into an engine's intake passage or combustion chamber?

10. Which car part converts mechanical energy from the running engine into electrical energy and helps recharge the battery?

11. What is the main function of an engine thermostat?

12. A car has excessive steering play and clunks near one front wheel. Inspection finds a torn protective boot at the outer steering linkage. Which part is the best match?

13. Which component uses electrical power to turn the engine during starting?

14. Which drivetrain component allows left and right drive wheels to rotate at different speeds while the car turns?

15. After a car passes over a bump, one corner continues bouncing several times. Which component is most directly responsible for controlling that motion?

16. Which part commonly drives several engine accessories, such as the alternator and air-conditioning compressor, from the crankshaft?