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: Legal Matters/Rules of the Road

1. How would a driver calculate the maximum overall permitted weight of their vehicle?

By adding the unladen weight of the vehicle to the load permitted to be carried

By checking the weight of the load which may be carried

By checking the unladen weight of the vehicle

By calculating the unladen weight of the vehicle plus the weight of the fuel

2 / 40

Category: Managing Risk

2. What lighting must be on a two-axle car-trailer?

Indicators, brake lights, rear number plate light, red reflectors and rear tail lights.

Flashing rear tail lights.

Indicators and rear number plate lights only.

Indicators, brake lights, rear number plate light, red reflectors and rear tail lights.

3 / 40

Category: Legal Matters/Rules of the Road

3. Is a driver still insured to drive their vehicle after their insurance policy has expired?

The driver is insured up to 14 days after the expiry of the policy

The driver is not insured after the expiry of the policy

The driver is insured up to 10 days after the expiry of the policy

The driver is insured up to 7 days after the expiry of the policy

4 / 40

Category: Managing Risk

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

Drive at a slower speed than normal

Refuse to drive the vehicle

Ensure that the load is properly restrained

Drive the vehicle only if accompanied

5 / 40

Category: Managing Risk

5. How do you make sure your vehicle is parked safely?

Park your vehicle opposite another vehicle on a narrow road.

Avoid reversing your vehicle into a space.

Don’t park it where it may endanger other road users.

6 / 40

Category: Legal Matters/Rules of the Road

6. What does this sign mean?

Yield to merging/diverging traffic ahead.

Traffic merging/diverging ahead.

Road narrows briefly ahead.

Diversion at junction ahead.

7 / 40

Category: Legal Matters/Rules of the Road

7. What is the maximum permissible speed for cars and motorcycles on motorways?

120 km/h

60 km/h

80 km/h

100 km/h

8 / 40

Category: Legal Matters/Rules of the Road

8. Is a driver allowed to use rebated (green) diesel fuel in a car on a public road?

Green diesel may be used in a car only in winter months

Green diesel may be used in a car only in summer months

Green diesel may be used in a car only if the car is a taxis

Green diesel may never be used in a car

9 / 40

Category: Managing Risk

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

Switch to a different fuel

Adjust the fuel mixture control mechanism

Replace the engine oil filter

Have the vehicle checked by a competent person

10 / 40

Category: Legal Matters/Rules of the Road

10. When is parking permitted on the brow of a hill?

When the driver angles the wheels towards the kerb

Only when there is no traffic on the road

Parking is never permitted on the brow of a hill

Parking is permitted when a vehicle has an efficient handbrake

11 / 40

Category: Managing Risk

11. What should a driver do when involved in an incident where nobody is injured but the vehicles are causing a danger or obstruction on the road?

Halt all traffic until it has been established who is at fault

Move all passengers and put a red warning triangle on the road

Wait for the Gardaí to arrive before moving the vehicles

Take care when moving damaged vehicles and make every effort to warn other traffic

12 / 40

Category: Legal Matters/Rules of the Road

12. What does this road marking mean?

Parking prohibited during business hours

Taxi parking only

Keep outside the yellow lines

Parking prohibited at all times

13 / 40

Category: Managing Risk

13. How could towing an overloaded trailer affect a vehicle?

It could improve the vehicle?s fuel consumption

It could impair the vehicle?s steering and braking

It could improve road holding on bends

It could improve braking ability when going downhill

14 / 40

Category: Technical Matters

14. What may happen if the vehicle?s engine oil is not changed as required?

The vehicle's fuel consumption may decrease

Parts of the engine may suffer increased wear

The engine may overheat

The vehicle's fuel consumption may increase

15 / 40

Category: Legal Matters/Rules of the Road

15. What does this traffic light mean?

Traffic may proceed if turning left.

Traffic may stop if safe to do so.

Traffic may proceed if safe to do so.

Traffic must stop at the traffic light.

16 / 40

Category: Legal Matters/Rules of the Road

16. What does this road marking indicate?

Cycle lane

Traffic calming

Pedestrian island

Zebra crossing

17 / 40

Category: Safe and Socially Responsible Driving

17. When being overtaken and there is oncoming traffic, what should a driver do?

Speed up so the following vehicle cannot overtake

Maintain position and flash the headlights to warn the oncoming traffic

Allow the overtaking vehicle to pass and return safely to the left side of the road

Maintain position because other drivers should not have attempted to overtake

18 / 40

Category: Legal Matters/Rules of the Road

18. Where can drivers locate the Maximum Authorised Mass (MAM) of their vehicle?

On the insurance disc

On the tax disc

On the NCT disc

On a metal plate on the vehicle

19 / 40

Category: Control of Vehicle

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

One of the rear tyres is flat

One of the front tyres is flat

The brake linings or pads are worn

The brake-pads are wet

20 / 40

Category: Safe and Socially Responsible Driving

20. What should a driver do on a narrow road when another vehicle is coming in the opposite direction?

Maintain road position and speed. Then flash the vehicles lights to alert the other driver to your presence

Maintain position and expect the other vehicle to move over

Reduce speed and allow reasonable clearance between their vehicle and the oncoming one before proceeding

Position your vehicle along the middle of the road to encourage the other driver to pull in

21 / 40

Category: Managing Risk

21. When should a driver use their vehicle's hazard warning lights?

When parked at a bend or corner.

When broken down and causing an obstruction.

When reversing onto a narrow road.

When moving slowly in traffic.

22 / 40

Category: Managing Risk

22. What should a driver do where a section of road ahead has a shallow flooded area?

Use a high gear and maintain the same speed keeping the engine revs low.

Decrease speed and use a higher gear.

Increase speed and use a higher gear.

Drive in a low gear as slowly as possible keeping the revs high.

23 / 40

Category: Legal Matters/Rules of the Road

23. What does this sign mean?

Low bridge ahead

Sharp descent for 100 metres

100 metres to the next exit

Sharp ascent in 100 metres

24 / 40

Category: Managing Risk

24. 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.

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

Turn on the warning bells at the crossing.

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

25 / 40

Category: Legal Matters/Rules of the Road

25. What does this traffic light mean?

Proceed if the way is clear

Stop, unless it is unsafe to do so

Prepare to move off

The traffic lights are out of order

26 / 40

Category: Managing Risk

26. What should a driver do if they notice steam rising from the engine compartment?

Stop where safe and investigate the cause

Increase speed to increase the air flow into the engine compartment

Top up with anti-freeze immediately

Remove the filler cap from the coolant bottle

27 / 40

Category: Managing Risk

27. What is the purpose of the red reflectors at the rear of a vehicle?

They are a substitute in case of brake-light failure

They warn the driver behind to switch to main beam

They warn pedestrians of the vehicle's location

They reflect light at night to make other road users aware of the vehicle

28 / 40

Category: Technical Matters

28. What is the primary purpose of the battery fitted to a petrol - or diesel - powered motor vehicle?

To provide braking

To reduce fuel consumption

To start the engine

To provide heat to the engine

29 / 40

Category: Safe and Socially Responsible Driving

29. When driving behind a bus that is signalling to turn left and there is oncoming traffic, what should a driver do?

Overtake it on the right-hand side

Overtake it on the left-hand side

Tap the brakes and sound the horn to signal to other vehicles to slow down

Stay back and allow it to complete the turn

30 / 40

Category: Legal Matters/Rules of the Road

30. What does this sign mean?

Flooding up ahead on left

Uneven surface on left

Loose chippings on road

Vehicle broken down ahead on right

31 / 40

Category: Managing Risk

31. How would a driver know that a brake-light bulb is not working?

They would notice the brake pedal getting softer under pressure

By standing at the rear of the vehicle and checking as another person presses the brake pedal

By standing at the rear of the vehicle and getting another person to turn on side lights

They would notice the brake pedal become firmer under pressure

32 / 40

Category: Managing Risk

32. What should the driver do to secure the vehicle when changing a front nearside (left-hand side) wheel?

Ensure the gear lever is in neutral

Point the front wheels away from the kerb

Point the front wheels towards the kerb

Ensure that the vehicle cannot roll when jacked up

33 / 40

Category: Legal Matters/Rules of the Road

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

Stop no more than one car length past the sign

Stop only if there is traffic on the major road

Stop past the sign

Stop at the sign

34 / 40

Category: Managing Risk

34. What should a driver do if a red system warning light lights up on the dashboard of their vehicle?

Continue on and see if it goes out

Drive to the nearest garage and have it checked

Continue on and listen for any unusual sounds

Stop and investigate the cause

35 / 40

Category: Legal Matters/Rules of the Road

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

Mountain rescue

Breakdown recovery

Doctor on call

Garda

36 / 40

Category: Technical Matters

36. When a driver operates the indicator switch and hears a more rapid clicking noise than normal, what could this mean?

An indicator bulb may have blown

The hazard warning light switch is faulty

The hazard warning lights are on

The voltage regulator is not functioning properly

37 / 40

Category: Safe and Socially Responsible Driving

37. What should a driver do in a queue of traffic controlled by traffic lights?

Put on a right signal to prevent following vehicles from overtaking

A driver should maintain their position in the queue

Overtake on the left and move to the head of the queue if there is space available

Overtake on the right and move to the head of the queue if there is space available

38 / 40

Category: Managing Risk

38. When attaching a trailer to their vehicle, what must a driver check?

That the load is positioned to the rear of the trailer.

That the load is positioned to the front of the trailer.

That the trailer has a spare wheel.

That the load is evenly spread.

39 / 40

Category: Safe and Socially Responsible Driving

39. Where are the blind spots that a driver needs to be aware of when towing a loaded trailer?

Parts of the road ahead which are obscured by other large vehicles

The view to the front hidden by the sun-visor

The area to the side and rear of the vehicle and the trailer that the driver cannot see

The goods or cargo area on the back of the trailer

40 / 40

Category: Safe and Socially Responsible Driving

40. What would happen if a driver cuts in too soon when overtaking another vehicle?

The safety gap between the vehicles increases

It will force oncoming vehicles to suddenly slow causing danger

The driver would not need to indicate when moving in

It would force the other vehicle to suddenly slow or change direction causing danger

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
03/06/2026	Corrected a bug Where 14 Questions Would Display any Chosen Answer as Wrong	MC
31/08/2026	Questions & Explanations Updated / Added	MC

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