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!

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1 / 40

Category: Safe and Socially Responsible Driving

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

When there is no oncoming traffic.

This practice is not permitted.

When following a vehicle a short distance ahead.

In built up areas where there is good street lighting.

2 / 40

Category: Technical Matters

2. If the oil pressure gauge shows little or no pressure, or the warning light comes on, what could the problem be?

The oil level is too high

The oil is too thick

The oil is too cold

The oil level is too low

3 / 40

Category: Safe and Socially Responsible Driving

3. What should a driver be aware of before crossing railway or tram lines?

There may be a reduction in tyre noise while crossing the rails

The wheels may become caught in the rails, causing the tyres to deflate

The tyre grip may be improved crossing the rails

There may be an uneven surface and tyre grip may be reduced when crossing the rails

4 / 40

Category: Legal Matters/Rules of the Road

4. What must a driver do when this sign is NOT accompanied by a white stop line on the road?

Stop past the sign

Stop no more than one car length past the sign

Stop only if there is traffic on the major road

Stop at the sign

5 / 40

Category: Legal Matters/Rules of the Road

5. What does this sign mean?

The driver must stop when red lights show

Emerging vehicles have priority. The driver must stop if necessary

The driver must stop when vehicles ahead show brake lights

Stop and wait for green light before proceeding

The driver must stop when red lights show

6 / 40

Category: Safe and Socially Responsible Driving

6. How does giving a late signal affect other road users?

It only affects other road users at traffic lights

It only affects other road users at roundabouts

They are not affected

They may not have been given sufficient time to react

7 / 40

Category: Safe and Socially Responsible Driving

7. What should a driver do if a heavy goods vehicle in front has moved out to make a left turn ahead?

Move out immediately and overtake as quickly as possible

Move to the right but do not overtake

Stay behind it and allow it to complete the turn

Drive into the space on its left-hand side

8 / 40

Category: Managing Risk

8. On a 2-lane motorway, what procedure should a driver adopt when wishing to overtake another vehicle safely?

Use their mirrors, signal and overtake in the left-hand lane only.

Use their mirrors, signal and overtake in the right-hand lane when it is safe to do so.

Check for following traffic and overtake in either lane.

Signal, use their mirrors and overtake in any available lane when it is safe to do so.

9 / 40

Category: Legal Matters/Rules of the Road

9. What does this hand signal mean?

The cyclist is signalling the driver to stop

The cyclist intends to turn left

The cyclist intends to stop

The cyclist intends to cross the road

10 / 40

Category: Legal Matters/Rules of the Road

10. Which vehicle is exempt from speed limits when being used in an emergency?

Ambulance

Mountain rescue

Breakdown recovery

Doctor on call

11 / 40

Category: Safe and Socially Responsible Driving

11. When can a driver expect to encounter black ice?

Black ice only occurs on motorways.

Only in the early hours of the morning.

When the temperature drops close to freezing.

Only late at night.

12 / 40

Category: Managing Risk

12. What should a driver do when entering a tunnel?

Drive closer to the vehicle in front.

Always switch off your radio to avoid distractions.

Never drive below the posted speed limit.

Keep a safe distance from the vehicle in front.

13 / 40

Category: Legal Matters/Rules of the Road

13. What does this sign mean?

Junction ahead with dual carriageway.

Y-junction ahead with roads of lesser importance

Y-junction ahead with roads of equal importance.

Minor road ahead.

14 / 40

Category: Managing Risk

14. What should a driver do if their vehicle breaks down on an automatic railway level crossing?

Get passengers clear of the crossing and phone the signal operator so that trains can be stopped.

Try to push the vehicle clear of the crossing as soon as possible.

Turn on the warning bells at the crossing.

Walk along the track to give warning to any approaching trains.

15 / 40

Category: Legal Matters/Rules of the Road

15. What does this traffic light mean?

Traffic is not allowed to turn right.

The driver may proceed in the direction of the green arrow if the way is clear.

All traffic must turn right.

The driver must stop and wait until the full green light appears.

16 / 40

Category: Managing Risk

16. 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.

17 / 40

Category: Legal Matters/Rules of the Road

17. What does this sign mean?

Motorway to the left

Diversion ahead to the left

Turn left only

Traffic from the right has priority

18 / 40

Category: Safe and Socially Responsible Driving

18. What lights should a driver use when driving in dense fog?

Drive with dipped headlights and fog lights

Drive with sidelights and hazard warning lights

Drive with sidelights and fog lights

Drive with full headlights and fog lights

19 / 40

Category: Legal Matters/Rules of the Road

19. What does this sign mean?

T-junction ahead with a road of major importance.

Cul-de-sac to the left and right.

Cul-de-sac to the right.

T-junction ahead with a road of minor importance.

20 / 40

Category: Technical Matters

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

Loosen the fuel pump

Bleed the air out of the fuel system.

Drain the fuel filter

Tighten the injector pipes

21 / 40

Category: Technical Matters

21. If a vehicle is driven with low oil pressure, what effect does this have on its engine?

It increases exhaust emissions

It increases wear and tear on the engine

It increases fuel efficiency

It increases fuel consumption

22 / 40

Category: Legal Matters/Rules of the Road

22. What does this sign mean?

Stop your vehicle

Other traffic must give way to you

Give way to traffic coming from your right

Stop for school crossing ahead

23 / 40

Category: Technical Matters

23. What is the purpose of engine oil?

It lubricates the braking system

It lubricates the wheel bearings

It lubricates the engine

It lubricates the exhaust system

24 / 40

Category: Safe and Socially Responsible Driving

24. When driving at night, what is the safest approach for a driver to adopt?

Drive at the maximum speed limit with full headlights on to see clearly ahead.

Drive at a speed that enables the driver to stop within the distance ahead that they can see to be clear.

Drive at the maximum speed limit with dipped headlights on at all times.

Drive with full headlights on at all times.

25 / 40

Category: Legal Matters/Rules of the Road

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

A driver may overtake if it is safe to do so

Road narrows ahead

A driver may not overtake

Dual carriageway ahead

A driver may overtake if it is safe to do so

26 / 40

Category: Legal Matters/Rules of the Road

26. If a vehicle is being driven by someone who is not the owner but has the owner's consent, who should ensure that the driver is properly insured?

The insurance company

The driver and the vehicle owner

The driver only

The vehicle owner only

27 / 40

Category: Control of Vehicle

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

The rear wheels

All the wheels

The front wheels

The rear right-hand wheel

28 / 40

Category: Safe and Socially Responsible Driving

28. What is the safest practice when driving on icy roads?

Drive at normal speed but apply the brakes from time to time to check for grip.

Drive in a low gear at all times using maximum acceleration.

Rely completely on the ABS or other advanced driver assistance systems.

Drive at a slower speed than usual using gentle acceleration and braking.

29 / 40

Category: Legal Matters/Rules of the Road

29. What does this sign mean?

No parking inside the white line

Trams emerging from left

Tram lane on left

Bus and tram lane on left

30 / 40

Category: Managing Risk

30. With regard to tyres, what should a driver do before starting a long journey?

Check the tyres are inflated to normal air pressure

Reduce the air pressure in the tyres

Increase the air pressure in the tyres

Reduce front tyre air pressure and increase rear tyre air pressure

31 / 40

Category: Managing Risk

31. What should a driver do if the right-hand headlight bulb fails when driving at night?

Drive with the hazard lights on

Replace it temporarily with the brake light bulb

Replace it temporarily with the left-hand headlight bulb

Have the bulb replaced immediately

32 / 40

Category: Managing Risk

32. Why is it important to ensure that the vehicle headlights are correctly aligned?

To reduce battery consumption

To increase the lifespan of the headlights

To enable the driver to see properly

To enable the driver to drive faster in the dark

33 / 40

Category: Managing Risk

33. What can be affected by driving on under-inflated tyres?

The exhaust system

The coolant system

Oil pressure

Fuel consumption

34 / 40

Category: Legal Matters/Rules of the Road

34. Unless otherwise indicated, what is the maximum permissible speed for cars or motorcycles on national roads?

120 km/h

80 km/h

60 km/h

100 km/h

35 / 40

Category: Safe and Socially Responsible Driving

35. What should the driver do when driving behind a vehicle that is going from side to side on the road in an unsafe manner?

The driver should signal and go around to the left of the vehicle

The driver should stay well back in a safe position

The driver should signal and go around to the right of the vehicle

The driver should drive close behind the vehicle with a view to overtaking

36 / 40

Category: Control of Vehicle

36. Why should a tractor be driven more slowly on uneven road surfaces?

To reduce road noise

To maintain tyre pressure

To avoid fuel spilling from the tank

To avoid severe bouncing

37 / 40

Category: Legal Matters/Rules of the Road

37. What does this Garda signal mean?

Turn right

Stop if approaching from either the front or behind

Turn left

Proceed if approaching from the front

38 / 40

Category: Technical Matters

38. If driving a vehicle with automatic transmission, what in particular should a driver be aware of?

That wheel-spin occurs more often

That driving on a motorway is not permitted

That the gear box may overheat while being driven in low gear.

That engine braking power is reduced

39 / 40

Category: Legal Matters/Rules of the Road

39. What does this sign mean?

Industrial estate ahead

Pipe laying ahead

Uneven surface ahead

Series of steep hills ahead

40 / 40

Category: Legal Matters/Rules of the Road

40. What does this traffic light mean?

Traffic may proceed but not turn right.

Give way to any oncoming traffic turning right.

Traffic may proceed if the way is clear.

Traffic must stop at the traffic light.

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

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