Mock Theory Test

Practice Your RSA Theory Test

Our mock theory test allows you to practice your category 'B' (Car) theory test. We cover the five core areas that you will be tested on:

Control of the Vehicle
Legal Matters / Rules of the Road
Managing Risk
Safe and Socially Responsible Driving
Technical Matters

You have forty-five minutes to answer forty questions and must answer at least thirty-five correctly to pass.

Want to brush up on just your road signs before your test? Try our Irish Road Sign test.

Good luck!

Try Our Theory Test

1 / 40

Category: Safe and Socially Responsible Driving

1. Where is black ice likely to occur on the road?

On a hard shoulder only.

Only in built-up areas.

In sheltered or shaded areas.

In mild weather on a coastal road.

2 / 40

Category: Safe and Socially Responsible Driving

2. When a driver is driving in a line of traffic and does not intend to overtake, what should the driver do?

Drive close to the vehicle in front

Stay back and leave a gap for other drivers to overtake

Indicate left as a signal to following traffic to overtake

Beckon to following traffic to overtake

3 / 40

Category: Legal Matters/Rules of the Road

3. What does this sign mean?

Only cyclists and buses are allowed to use the lane during the times indicated.

Only buses, cyclists and taxis are allowed to use the lane ahead during the hours indicated.

Only buses and cyclists may park during the times indicated.

Only buses, cyclists and taxis are allowed to use the lane outside the hours indicated.

4 / 40

Category: Technical Matters

4. What should a driver do if the fuel system becomes air-locked?

Tighten the injector pipes

Drain the fuel filter

Bleed the air out of the fuel system.

Loosen the fuel pump

5 / 40

Category: Technical Matters

5. What happens if the vehicle has a flat battery?

The head light bulbs will have to be replaced

The battery will have to be replaced

The battery will leak acid into the engine

The engine will not start.

6 / 40

Category: Safe and Socially Responsible Driving

6. What should a driver do when driving in slippery road conditions?

Drive at lower speeds and use gentle acceleration and braking

Apply the brakes sharply from time to time to test the road surface

Maintain a normal distance from the vehicle in front

Drive at normal speed but allow extra stopping distance

7 / 40

Category: Managing Risk

7. What should a driver do when driving in heavy rain?

Maintain normal speeds as on a dry road.

Be aware that the vehicle may slide or ‘aquaplane’.

Weave the vehicle slightly in order to improve tyre grip.

Increase speed so that the vehicle will glide over any standing water.

8 / 40

Category: Safe and Socially Responsible Driving

8. What should a driver do when driving on a wide road behind a vehicle that has signalled to turn right ahead?

Overtake on the left-hand side and carry on if safe to do so

Overtake on the left, but only if turning left a short distance ahead

Overtake on the right-hand side and carry on

Stay behind and tap the brakes to signal other drivers to slow down

9 / 40

Category: Managing Risk

9. When should tyre pressure be checked?

When the tyres are cold

When the tyres are part-worn

When the tyres are hot

At service intervals only

10 / 40

Category: Managing Risk

10. What effect can a broken lens have on headlights?

It can cause other bulbs to blow if not fixed immediately

It can reduce and distort the beam

It can increase the brightness of the beam in the other headlight

It can cause the bulb to overheat

11 / 40

Category: Safe and Socially Responsible Driving

11. What is the recommended minimum stopping distance for a car travelling at 50 km/h on a dry road?

5 metres

55 metres

15 metres

25 metres

12 / 40

Category: Control of Vehicle

12. What type of noise might fast cornering create?

Exhaust backfire

Engine backfire

Tyre squeal

Brake squeal

13 / 40

Category: Legal Matters/Rules of the Road

13. What does this sign mean?

Road narrows on the left.

End of dual carriageway.

Merging traffic from the left.

The driver must overtake on the right only.

14 / 40

Category: Managing Risk

14. When a wiper blade fails to clear the windscreen what should the driver do?

Bend the wiper arm to apply more pressure on the windscreen.

Switch the wiper control from high speed to low speed repeatedly.

Have the wiper blades replaced as soon as possible.

Apply a light film of oil to both of the wiper blades.

15 / 40

Category: Technical Matters

15. What does the speed rating of a tyre indicate?

The maximum speed the vehicle can overtake at

The maximum speed the vehicle can be driven at

The minimum speed for which the tyre is designed

The maximum speed for which the tyre is designed

16 / 40

Category: Legal Matters/Rules of the Road

16. What does this sign mean?

Minimum permitted weight is 3 tonnes.

Only 3-axled vehicles are permitted.

3-axled vehicles are not permitted.

Maximum permitted weight is 3 tonnes.

17 / 40

Category: Managing Risk

17. In general, how frequently should a vehicle's lights be checked?

When wintertime approaches

Daily before driving

At minor service intervals

At major service intervals

18 / 40

Category: Safe and Socially Responsible Driving

18. In dry weather how might a driver judge what is a safe following distance to vehicle in front?

By using a fixed point and applying the two second rule

By allowing at least two vehicle lengths between the vehicles

Allow a least two vehicle lengths for each kilometre per hour

Drive at the same speed as the vehicle in front

19 / 40

Category: Technical Matters

19. What should a driver do before checking the engine oil level on a vehicle?

Make sure that the engine is switched off and cold

Make sure that the vehicle is in a low gear

Make sure that the engine is switched on and hot

Make sure that the engine is running

20 / 40

Category: Safe and Socially Responsible Driving

20. When is it safe for a driver to use the main beam headlights when driving at night?

When following a vehicle a short distance ahead.

This practice is not permitted.

When there is no oncoming traffic.

In built up areas where there is good street lighting.

21 / 40

Category: Legal Matters/Rules of the Road

21. What is the purpose of traffic calming measures?

To slow down traffic in the vicinity

To prioritise heavy goods traffic

To inform the driver of an increased speed limit ahead

To alert drivers to road flooding ahead

22 / 40

Category: Managing Risk

22. If, when driving along, the driver notices that the engine power is lower than normal, what should they do?

Replace the engine oil filter

Have the vehicle checked by a competent person

Switch to a different fuel

Adjust the fuel mixture control mechanism

23 / 40

Category: Managing Risk

23. What should a driver do to secure the towing vehicle before unhitching a trailer?

Apply the handbrake, switch off the ignition and engage a low gear

Lower the jockey wheel and then switch off the ignition

Apply the handbrake, lower the jockey wheel and switch off the engine

Disconnect the electrical supply to the trailer lights and lower the jockey wheel

24 / 40

Category: Managing Risk

24. What should a driver do when joining a motorway from a slip road?

Drive directly onto the motorway as the driver on the acceleration lane has right of way.

Drive along the hard shoulder until a suitable gap appears in the motorway traffic to allow the driver to merge into it.

Try to match the vehicle speed to that of traffic already on the motorway and merge into it in a suitable gap.

Always stop at the end of the acceleration lane and yield to traffic on the motorway.

25 / 40

Category: Managing Risk

25. What type of drink should be given to a person who has been injured in a collision?

A cold drink

A hot drink

No drink should be given

A non-alcoholic drink

26 / 40

Category: Safe and Socially Responsible Driving

26. What effect does a wet road surface have on a vehicle?s braking ability?

It makes no difference to the required braking distance

It reduces the braking distance of that required on a dry surface

Modern tyres provide grip on a wet road as effectively as on a dry road

Generally, it doubles the braking distance of that required on a dry surface

27 / 40

Category: Managing Risk

27. What should a driver do when requested to drive a vehicle that they feel is overloaded?

Drive the vehicle only if accompanied

Ensure that the load is properly restrained

Drive at a slower speed than normal

Refuse to drive the vehicle

28 / 40

Category: Legal Matters/Rules of the Road

28. What does this sign mean?

Contra-flow bus lane.

With-flow bus lane.

Double-decker buses only.

Two-way traffic system.

29 / 40

Category: Technical Matters

29. On a motorway, when should a driver use the hazard warning lights?

When towing another vehicle

When slowing down quickly because of danger ahead

When driving on the hard shoulder.

When another vehicle is following too closely

30 / 40

Category: Control of Vehicle

30. The parking brake (hand brake) generally works on which wheels?

The front wheels

All the wheels

The rear right-hand wheel

The rear wheels

31 / 40

Category: Managing Risk

31. What should a driver do if they arrive at the scene of a collision involving a vehicle carrying hazardous materials?

Try to prevent any further leakage of hazardous materials before raising the alarm

Keep well clear and call the emergency services

Contact the haulage company who own the vehicle

Try to move the vehicle to a safe place

32 / 40

Category: Safe and Socially Responsible Driving

32. What should a driver do if a bus in front has moved out to make a left-hand turn and there is oncoming traffic?

Overtake on the right-hand side

Stay back and allow the bus to complete the turn

Maintain speed until up close behind the bus

Overtake on the left-hand side

33 / 40

Category: Legal Matters/Rules of the Road

33. What does this traffic light mean?

The traffic lights are out of order

Stop, unless it is unsafe to do so

Proceed if the way is clear

Prepare to move off

34 / 40

Category: Technical Matters

34. Under what circumstances could both cross-ply and radial tyres be fitted to a vehicle?

When driving in slippery road conditions

When heavy loads are being carried

When towing a trailer in snow

When each type is fitted on a different axle

35 / 40

Category: Managing Risk

35. After exiting the motorway and coming towards a junction at the end of the deceleration lane (slip road) what should a driver do?

The driver should continue at the junction as traffic on the slip road has right of way.

The driver must always stop at the end of a slip road.

Be alert for oncoming and crossing traffic at the end of the slip road.

Maintain motorway speeds to the end of the slip road.

36 / 40

Category: Legal Matters/Rules of the Road

36. If driving from A to B, what do these road markings mean?

Only motorcyclists may cross the lines to overtake

A driver may not cross the lines to overtake

Oncoming traffic may not cross the lines to overtake

A driver may cross the lines to overtake

37 / 40

Category: Control of Vehicle

37. If a driver applies the foot brake and hears a scraping noise, what is the most likely cause?

One of the front tyres is flat

The brake linings or pads are worn

The brake-pads are wet

One of the rear tyres is flat

38 / 40

Category: Technical Matters

38. Why should the valve be replaced when having a tubeless tyre fitted?

To ensure the tyre will remain inflated

To ensure the wheel nuts remain tight

To ensure the wheel remains aligned

To ensure the wheel remains balanced

39 / 40

Category: Legal Matters/Rules of the Road

39. What does this sign mean?

No right turn

Yield to other traffic when turning right

Turn right if there is no oncoming traffic

Cul-de-sac to the right

40 / 40

Category: Technical Matters

40. What is an effect of under-inflated tyres on a vehicle?

Improved braking and steering

Increased wear on the vehicle's engine

Improved fuel economy and braking

Impaired braking and steering

Your score is

Disclaimer

This is completely free to use as often as you like. We try to ensure all the questions' accuracy and validity and keep them updated with the official RSA theory test questions. The tests try to simulate the real experience as much as possible. Like the actual test, you are given 45 minutes to complete the test. At the end of each test, you are given your result and can review your incorrect answers to see where you went wrong. If you see any errors or omissions, please get in touch with us.

Version Control

Date	Changes	By Whom
25/10/2023	Theory test created.	MC
14/03/2024	Questions Updated / Added	MC
29/05/2024	Questions & Explanations Updated / Added	MC
04/06/2024	Questions & Explanations Updated / Added	MC
18/06/2024	Questions & Explanations Updated / Added	MC
23/09/2025	Questions & Explanations Updated / Added	MC
27/01/2026	Questions & Explanations Updated / Added	MC

Mock Theory Test

Practice Your RSA Theory Test

Recent Posts

Disclaimer

Version Control