🔧 Technical Matters — all 28 questions

Every Technical Matters question from the Ireland driver theory test (Cat. B), each with the correct answer and an explanation. Work through them in order, or practise them interactively for free.

1. 1. After changing a wheel on a vehicle, which of the following should be checked after a short distance?
2. 2. If a vehicle is driven with low oil pressure, what effect does this have on its engine?
3. 3. If driving a vehicle with automatic transmission, what in particular should a driver be aware of?
4. 4. If the oil pressure gauge shows little or no pressure, or the warning light comes on, what could the problem be?
5. 5. If the vehicle’s oil-pressure gauge is reading low or the red oil-pressure warning light comes on, what should a driver do?
6. 6. In general, above what gross vehicle weight must a trailer have brakes fitted?
7. 7. On a motorway, when should a driver use the hazard warning lights?
8. 8. Under what circumstances could both cross-ply and radial tyres be fitted to a vehicle?
9. 9. What can be affected by driving on under-inflated tyres?
10. 10. What does Anti-lock braking system (ABS) do?
11. 11. What does the speed rating of a tyre indicate?
12. 12. What does the warning light and/or red zone on a fuel gauge mean?
13. 13. What effect can a worn shock absorber have on a vehicle?
14. 14. What effect does automatic transmission have on engine braking power?
15. 15. What effect does low tyre-pressure have on a vehicle?
16. 16. What effect would a weak battery have on a vehicle’s driving performance?
17. 17. What happens if the vehicle has a flat battery?
18. 18. What is an effect of under-inflated tyres on a vehicle?
19. 19. What is the primary purpose of the battery fitted to a petrol – or diesel – powered motor vehicle?
20. 20. What is the purpose of engine oil?
21. 21. What may happen if the vehicle’s engine oil is not changed as required?
22. 22. What should a driver do before checking the engine oil level on a vehicle?
23. 23. What should a driver do if the fuel system becomes air-locked?
24. 24. When a driver operates the indicator switch and hears a more rapid clicking noise than normal, what could this mean?
25. 25. When driving, where should a driver rest their left foot?
26. 26. When is it recommended to use coolant?
27. 27. While driving at higher speeds, what does a continuous vibration in the steering indicate?
28. 28. Why should the valve be replaced when having a tubeless tyre fitted?