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Ireland DTT Car study materials
Ireland DTT Car study resources

Ireland DTT Car practice questions

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Question 1Rules of the Road

On a standard Irish two-way road with no kerb markings or signs, what is the general speed limit applying to a car?

  1. 80 km/h Correct answer.
  2. 50 km/h
  3. 120 km/h
  4. 100 km/h

Explanation

The default speed limit on national and regional/local roads outside built-up areas is 80 km/h for cars unless signs state otherwise. Special speed limits posted on signs override this default. Motorways carry a higher limit of 120 km/h.

Question 2Rules of the Road

When may a driver lawfully use a handheld mobile phone while driving?

  1. When making or receiving an emergency call to 999 or 112 Correct answer.
  2. When driving below 30 km/h in a housing estate
  3. When using the phone's speaker function
  4. When stationary in traffic with the engine running

Explanation

Holding a mobile phone while driving is an offence, but an exemption applies to genuinely contacting emergency services. Being stopped in traffic or driving slowly does not create an exemption. Hands-free use is permitted but still distracts the driver.

Question 3Rules of the Road

What does a broken white line along the centre of the road indicate?

  1. Overtaking is permitted when it is safe to do so Correct answer.
  2. A hazard or junction lies ahead
  3. The road has three lanes in the same direction
  4. Overtaking is prohibited at all times

Explanation

A broken white centre line separates traffic and indicates that overtaking is allowed if it can be done safely. A continuous white line prohibits crossing. Broken lines do not indicate hazards or lane counts on their own.

Question 4Rules of the Road

At a standard pelican crossing, what must a driver do when the amber light begins to flash?

  1. Reverse away from the crossing
  2. Stop and give way to pedestrians on or entering the crossing Correct answer.
  3. Proceed if no pedestrian is visible
  4. Sound the horn and continue

Explanation

At a pelican crossing, a flashing amber light means drivers must yield to pedestrians already on the crossing or about to cross. If the crossing is clear, the driver may proceed. Proceeding while pedestrians are present is an offence.

Question 5Rules of the Road

What is the minimum legal tread depth for car tyres in Ireland?

  1. 2.0 mm
  2. 1.0 mm
  3. 3.0 mm
  4. 1.6 mm Correct answer.

Explanation

Irish law requires car tyres to have a minimum tread depth of 1.6 mm across the central three-quarters of the tread. Tyres below this are illegal and unsafe in wet conditions. Checking tread regularly is part of vehicle roadworthiness.

Question 6Rules of the Road

When approaching a junction where a STOP sign is displayed, what must a driver do?

  1. Come to a complete stop and proceed only when safe Correct answer.
  2. Slow down and proceed if the road looks clear
  3. Stop only if another vehicle is approaching
  4. Stop only during busy periods

Explanation

A STOP sign requires a complete stop at the stop line regardless of traffic conditions. The driver must then proceed only when it is safe to do so. Rolling slowly through a STOP sign is an offence.

Question 7Rules of the Road

Which document must a learner permit holder display while driving?

  1. A valid NCT certificate
  2. A tax disc only
  3. A copy of the vehicle insurance certificate on the windscreen
  4. An L plate displayed clearly at the front and rear of the vehicle Correct answer.

Explanation

Learner drivers must display L plates at the front and rear of the vehicle so they are clearly visible. The L plates must comply with size and colour requirements. Failure to display them is an offence.

Question 8Rules of the Road

What is the purpose of a continuous white line along the edge of the carriageway?

  1. To mark the edge of the road for guidance Correct answer.
  2. To indicate a bus lane
  3. To mark a pedestrian crossing
  4. To indicate a clearway

Explanation

A continuous white line along the edge of the carriageway marks the road edge and guides drivers, especially in poor visibility. It is not a bus lane, crossing or clearway marking. Drivers should keep within the marked edge.

Question 9Rules of the Road

A driver approaches a junction and the traffic lights show a green light, but the exit beyond the junction is blocked by queued traffic. What should the driver do?

  1. Wait before the junction until there is space to clear it Correct answer.
  2. Mount the kerb to pass the queue
  3. Sound the horn until the queue moves
  4. Enter the junction and wait in the box

Explanation

A green light does not give the right to block a junction. A driver should wait before entering until there is clear space to exit on the far side. Entering and stopping in the junction obstructs cross traffic and is an offence.

Question 10Rules of the Road

On a motorway, what is the correct response if you miss your intended exit?

  1. Reverse carefully along the hard shoulder
  2. Make a U-turn at the next gap in the central reservation
  3. Continue to the next exit and return by a legal route Correct answer.
  4. Stop and wait for a break in traffic, then reverse

Explanation

Reversing, stopping or making U-turns on a motorway are prohibited and extremely dangerous. A driver who misses an exit must continue to the next exit and rejoin the route legally. The central reservation must never be crossed.

Question 11Rules of the Road

What does a yellow box junction marking require of drivers?

  1. Drivers may enter only if their exit is clear, except when turning right and blocked by oncoming traffic Correct answer.
  2. Drivers may wait in the box if traffic is heavy
  3. Drivers must stop before the box at all times
  4. Drivers must not change lanes within the box under any circumstances

Explanation

A yellow box junction must be kept clear. Drivers may enter only when the exit is clear, except when turning right and prevented from doing so by oncoming traffic. Waiting in the box otherwise obstructs other traffic.

Question 12Rules of the Road

A driver is following a large truck on a wet road. What is the safest following strategy?

  1. Flash headlights to signal the truck to speed up
  2. Overtake immediately regardless of visibility
  3. Increase the gap to allow for spray and longer stopping distance Correct answer.
  4. Follow closely to use the truck's shelter from rain

Explanation

Wet roads increase stopping distances and large vehicles throw up spray that reduces visibility. The driver should increase the following gap to maintain a safe stopping distance. Close following behind a truck also removes the forward view of the road.

Question 13Rules of the Road

Under what circumstance may a driver cross a continuous white centre line?

  1. When the vehicle ahead is signalling left
  2. When overtaking a slow-moving tractor
  3. To enter a premises or side road on the right, if it is safe Correct answer.
  4. Whenever traffic is light

Explanation

A continuous white line may be crossed only in limited circumstances such as accessing a premises or side road on the right, when it is safe. Overtaking across a continuous line is prohibited. Traffic volume or another vehicle's signal does not create an exception.

Question 14Rules of the Road

What is the correct action when an emergency vehicle with flashing blue lights and siren approaches from behind?

  1. Brake sharply and stop immediately in your lane
  2. Move to the left when safe and allow it to pass Correct answer.
  3. Mount the kerb to clear the road
  4. Speed up to stay ahead of it

Explanation

Drivers should check mirrors and, when it is safe, move to the left to let the emergency vehicle pass. Braking sharply or stopping abruptly can cause a collision. Speeding up or mounting the kerb is dangerous.

Question 15Rules of the Road

A driver wishes to turn right at a junction with a filter light showing a green arrow. What does the green arrow mean?

  1. Stop and wait for a full green light
  2. The arrow applies only to cyclists
  3. Yield to traffic from all directions
  4. Proceed in the direction of the arrow if the way is clear Correct answer.

Explanation

A green filter arrow permits traffic to proceed in the direction shown, provided the way is clear. It does not require waiting for a full green. Drivers must still check for pedestrians and other traffic.

Question 16Rules of the Road

What does a broken yellow line along the edge of the carriageway indicate?

  1. The edge of the road where parking may be restricted at certain times Correct answer.
  2. A bus lane
  3. A cycle track
  4. A clearway that applies at all times

Explanation

A broken yellow line along the edge of the carriageway indicates parking restrictions that apply at specified times, usually shown on nearby signs. It is not a bus lane, cycle track or all-time clearway. Drivers should check signs for the applicable times.

Question 17Rules of the Road

A driver is travelling at 100 km/h on a dry road. Approximately what total stopping distance should be allowed?

  1. About 70 metres
  2. About 120 metres Correct answer.
  3. About 35 metres
  4. About 50 metres

Explanation

At 100 km/h the total stopping distance on a dry road is approximately 120 metres, combining thinking and braking distance. This is much greater than the distance covered at lower speeds. Wet conditions substantially increase the figure.

Question 18Rules of the Road

When must a driver use dipped headlights during the day?

  1. When visibility is seriously reduced or in poor weather conditions Correct answer.
  2. Only when it is raining heavily
  3. Never; sidelights are sufficient
  4. Only on motorways

Explanation

Dipped headlights must be used when visibility is seriously reduced, such as in fog, heavy rain or falling snow. They help other road users see the vehicle. Sidelights alone are insufficient in poor visibility.

Question 19Rules of the Road

A driver is parked on a two-way street at night in a built-up area with street lighting. What lighting must the vehicle show?

  1. Sidelights or parking lights Correct answer.
  2. Hazard warning lights only
  3. Full headlights
  4. No lights are required because of street lighting

Explanation

When parked at night in a built-up area with street lighting, a vehicle should show sidelights or parking lights. Full headlights would dazzle other road users. Hazard lights are for warning of a breakdown, not routine parking.

Question 20Rules of the Road

What is the correct procedure when a driver intends to overtake a cyclist on a narrow road?

  1. Wait until there is sufficient space and pass with a safe clearance Correct answer.
  2. Flash headlights and accelerate past
  3. Pass at speed to minimise time alongside
  4. Sound the horn and pass closely

Explanation

A driver should wait until there is enough clear road and pass the cyclist with adequate clearance. Passing closely or at speed endangers the cyclist. Sounding the horn or flashing headlights does not create safe space.

Question 21Rules of the Road

A driver approaches a junction with a yield sign and a broken white line across their lane. What is required?

  1. Proceed without slowing if no traffic is visible
  2. Give way to traffic on the major road and proceed only when safe Correct answer.
  3. Come to a complete stop in all cases
  4. Sound the horn before entering the junction

Explanation

A yield sign with a broken white line requires the driver to give way to traffic on the major road. A complete stop is not mandatory, but the driver must slow and proceed only when it is safe. Failing to give way is an offence.

Question 22Rules of the Road

A driver's view is suddenly obscured by low sun while driving at speed. What is the most appropriate response?

  1. Reduce speed and, if necessary, stop in a safe place until visibility improves Correct answer.
  2. Brake hard immediately without checking mirrors
  3. Close one eye and maintain speed
  4. Continue at the same speed using the road markings as a guide

Explanation

When low sun seriously obscures vision, the safest response is to reduce speed and stop in a safe place until visibility improves. Continuing at speed risks collision with unseen hazards. Hard braking without checking mirrors can cause a rear-end collision.

Question 23Rules of the Road

A driver is involved in a collision causing injury to another person. What is the driver's legal obligation?

  1. Continue to the nearest garage and report later
  2. Stop, exchange details and report the collision to An Garda Síochána Correct answer.
  3. Report the collision only if asked by the other driver
  4. Leave the scene if no property damage occurred

Explanation

Where a collision causes injury, the driver must stop at the scene and report it to An Garda Síochána. Details should be exchanged with the other parties. Leaving the scene can constitute an offence.

Question 24Rules of the Road

On a road with a continuous white line on your side and a broken line on the opposite side, what does this arrangement mean for overtaking?

  1. Both directions may overtake freely
  2. Overtaking is prohibited for traffic on your side of the line Correct answer.
  3. The marking applies only to heavy vehicles
  4. Overtaking is permitted for traffic on your side but not the opposite side

Explanation

Where the continuous line is nearest to your lane, you are prohibited from crossing it to overtake, while traffic on the opposite side with the broken line may overtake when safe. The marking applies to all vehicles. Drivers must obey the line nearest to them.

Question 25Rules of the Road

A driver is driving at night and an oncoming vehicle fails to dip its headlights. What is the safest response?

  1. Slow down and look towards the left edge of your lane to maintain position Correct answer.
  2. Switch off your lights briefly
  3. Look directly at the oncoming lights to judge distance
  4. Flash your main beam repeatedly in retaliation

Explanation

When dazzled by oncoming headlights, a driver should slow down and look towards the left edge of the road to maintain position without staring at the lights. Flashing main beam or switching off lights increases danger. Slowing gives more time to react.

Question 26Rules of the Road

What is the general speed limit on a national secondary road, unless signs indicate otherwise?

  1. 50 km/h
  2. 120 km/h
  3. 100 km/h
  4. 80 km/h Correct answer.

Explanation

National secondary roads carry a default speed limit of 80 km/h for cars unless a different limit is posted. Drivers must always check signage, because local bylaws or special speed limit areas can reduce this figure.

Question 27Rules of the Road

A driver intends to turn left at a junction. What is the correct position and observation routine before turning?

  1. Keep well left, check the left mirror and blind spot, and watch for cyclists and pedestrians before turning Correct answer.
  2. Stay in the right-hand lane and signal only as the vehicle begins to turn
  3. Move to the centre of the road, check only the right mirror, then turn sharply across the junction
  4. Position in the middle of the lane and rely on the vehicle behind to warn of hazards

Explanation

For a left turn the vehicle should be positioned correctly on the left, and the driver must check mirrors and the left blind spot for cyclists and pedestrians who may be travelling straight ahead. A signal should be given in good time and the turn made without cutting the corner.

Question 28Rules of the Road

What does a broken white line in the centre of a two-way carriageway mean for a driver?

  1. Overtaking is prohibited at all times
  2. The driver must reduce speed to 30 km/h
  3. Parking is allowed on the centre of the road
  4. Overtaking is permitted when it is safe and the road ahead is clear Correct answer.

Explanation

A broken white centre line separates opposing traffic flows and may be crossed to overtake or turn when it is safe to do so. The driver must still judge sight lines, oncoming traffic and any other road markings before crossing.

Question 29Rules of the Road

At a pedestrian crossing controlled by flashing amber lights, what must a driver do?

  1. Proceed only if no pedestrian is on or about to use the crossing, otherwise yield Correct answer.
  2. Stop and wait until the lights turn green
  3. Treat the crossing as closed and drive around it
  4. Sound the horn to warn pedestrians and continue

Explanation

Flashing amber at a pedestrian crossing means drivers must yield to any pedestrian already crossing or waiting to cross, and may proceed only when the crossing is clear. It is not a signal to stop automatically, nor a signal to drive on regardless.

Question 30Rules of the Road

What is the correct way to use a roundabout when intending to take the second exit?

  1. Stop at the yield line and wait for a gap even when the roundabout is empty
  2. Enter the roundabout and drive anticlockwise around the central island
  3. Approach in the right lane, enter without yielding, and signal right throughout
  4. Approach in the left lane unless markings direct otherwise, yield to traffic already on the roundabout, signal left after passing the exit before yours Correct answer.

Explanation

For a second exit the driver normally approaches in the left lane where lanes are not marked otherwise, gives way to traffic already circulating, and signals left after passing the exit before the intended one. Traffic on a roundabout in Ireland travels anticlockwise, and drivers must yield at the line.

Question 31Rules of the Road

What does a regulatory sign with a red circle and the number 50 inside it indicate?

  1. A minimum speed of 50 km/h applies
  2. A distance of 50 metres to the next hazard
  3. A maximum speed limit of 50 km/h applies Correct answer.
  4. A weight restriction of 50 tonnes

Explanation

A red-bordered circular sign showing a number is a regulatory speed limit sign, so 50 inside a red circle sets a maximum speed of 50 km/h. Drivers must not exceed this figure until a different limit is indicated.

Question 32Rules of the Road

A driver is waiting to emerge from a minor road onto a major road. What is the safest observation technique?

  1. Look left only, because traffic comes from the left
  2. Look straight ahead and emerge slowly without checking
  3. Look right, then left, then right again before emerging Correct answer.
  4. Rely on the passenger to confirm the road is clear

Explanation

At a junction the driver should look right, then left, then right again so that the last check is against the nearest oncoming traffic. This sequence ensures the driver has the freshest view of the traffic most likely to conflict with the manoeuvre.

Question 33Rules of the Road

What is the correct action when a driver hears the siren of a fire engine approaching from a side road while the driver is in a queue?

  1. Accelerate through the junction to clear the way
  2. Stop dead in the lane without checking surroundings
  3. Stay calm, check mirrors and blind spots, and make room if it is safe without mounting the kerb or breaking a red light Correct answer.
  4. Mount the kerb immediately to create space

Explanation

Drivers should facilitate emergency vehicles by making space where it is safe to do so, but must not break red lights, mount kerbs or put others at risk. Observation of mirrors and blind spots prevents new hazards being created while yielding.

Question 34Rules of the Road

A driver is driving on a motorway and the vehicle develops a puncture. What is the correct procedure?

  1. Continue driving at reduced speed to the next exit regardless of the damage
  2. Move to the hard shoulder if possible, stop as far left as practicable, switch on hazard lights and keep passengers away from the carriageway Correct answer.
  3. Stop in the right-hand lane and change the wheel there
  4. Reverse along the hard shoulder to the previous exit

Explanation

On a motorway a vehicle in difficulty should be moved to the hard shoulder, stopped as far left as possible, and hazard lights switched on. Occupants should exit on the left side and stand behind the barrier away from traffic while help is arranged.

Question 35Rules of the Road

What is the correct behaviour when entering a motorway from a slip road?

  1. Build up speed on the slip road to match traffic, yield to traffic already on the motorway, and merge when a safe gap appears Correct answer.
  2. Cross directly to the right-hand lane on entry
  3. Enter at low speed and force other traffic to adjust
  4. Stop at the end of the slip road and wait for a gap

Explanation

The slip road is used to accelerate to a speed close to that of motorway traffic so the driver can merge smoothly into a suitable gap. Traffic already on the motorway has priority, so the entering driver must yield.

Question 36Rules of the Road

A driver is towing a small trailer on a national road. What speed must not be exceeded?

  1. 100 km/h
  2. 120 km/h
  3. 80 km/h Correct answer.
  4. 50 km/h

Explanation

A vehicle towing a trailer is subject to a maximum speed of 80 km/h on national roads in Ireland, regardless of the limit applying to solo cars. The lower limit reflects the reduced stability and longer stopping distance of a towing combination.

Question 37Rules of the Road

What does a broken white line across a lane at a junction, together with a yield sign, require of a driver?

  1. Proceed without yielding because the line is broken
  2. Stop completely for at least three seconds before proceeding
  3. Sound the horn before crossing the line
  4. Give way to traffic on the major road and proceed only when it is safe Correct answer.

Explanation

A broken white line at a yield junction marks where the driver must give way to traffic on the major road. The driver need not stop if the road is clear, but must be able to stop and must yield to any approaching traffic.

Question 38Rules of the Road

How should a driver use a bus lane outside its hours of operation?

  1. The lane is reserved for buses at all times
  2. The lane may be used by other traffic during the times it is not in operation, subject to any signs Correct answer.
  3. Only taxis may ever use the lane
  4. The lane may never be used by cars under any circumstances

Explanation

Bus lanes operate during the hours shown on accompanying signs, and outside those hours general traffic may use them. Drivers should still watch for buses pulling out and for cyclists who commonly use these lanes.

Question 39Rules of the Road

A driver is approaching a school warden displaying a stop sign. What is required?

  1. Sound the horn and proceed with caution
  2. Continue at the same speed because the warden only advises
  3. Slow down and pass if no child is visible
  4. Stop and remain stopped until the warden signals that it is safe to proceed Correct answer.

Explanation

A school warden's stop sign has the same legal force as a stop sign, so the driver must stop and wait until the warden lowers the sign or signals that it is safe. Passing while children may be crossing is a serious offence.

Question 40Rules of the Road

What is the correct way to park on a hill facing downhill with a manual gearbox?

  1. Leave the vehicle in neutral with only the handbrake applied
  2. Leave the engine running and the vehicle in neutral
  3. Select first gear and turn the wheels away from the kerb
  4. Apply the handbrake, select reverse gear, and turn the wheels towards the kerb Correct answer.

Explanation

When parking facing downhill the handbrake should be firmly applied, reverse gear selected and the wheels turned towards the kerb so that any movement is checked by the kerb. This combination reduces the risk of the vehicle rolling into traffic.

Question 41Rules of the Road

What does a hatched area bounded by a continuous white line in the centre of the road mean?

  1. Drivers must not enter the hatched area except in an emergency Correct answer.
  2. Drivers may use the area for overtaking freely
  3. The area marks a lane for overtaking slower vehicles
  4. The area is a parking bay for short stops

Explanation

A hatched area bordered by a continuous white line is not to be entered except in an emergency. It separates opposing traffic streams or protects turning lanes and must be treated like a solid obstruction.

Question 42Rules of the Road

A driver is following a tractor on a rural road and a solid white line is on the driver's side. What is the correct approach?

  1. Cross the solid line if the tractor is travelling slowly
  2. Flash headlights to force the tractor to pull in
  3. Remain behind the tractor and wait until the line becomes broken and the road ahead is clear before overtaking Correct answer.
  4. Overtake immediately because agricultural vehicles must be passed

Explanation

A solid white line on the driver's side prohibits crossing for overtaking, so the driver must stay behind until the restriction ends and a safe opportunity arises. Patience is required because sight lines on rural roads are often limited.

Question 43Rules of the Road

What is the correct response when a driver's vehicle begins to aquaplane on a wet road?

  1. Apply the handbrake to slow the vehicle
  2. Ease off the accelerator, avoid sudden braking or steering, and hold the steering steady until grip returns Correct answer.
  3. Brake hard and steer sharply to regain control
  4. Accelerate to push through the water

Explanation

Aquaplaning occurs when tyres lose contact with the road surface through water, so sudden inputs can cause a skid. Easing off the accelerator and keeping the steering steady allows the tyres to regain contact gradually.

Question 44Rules of the Road

A driver is dazzled by the headlights of a following vehicle reflected in the mirrors at night. What is the most appropriate response?

  1. Speed up to increase the distance from the following vehicle
  2. Adjust the mirror to the anti-dazzle position and maintain a steady speed without looking directly at the light Correct answer.
  3. Brake sharply to warn the following driver
  4. Switch on rear fog lights to retaliate

Explanation

Using the anti-dazzle setting on the interior mirror reduces glare without removing the ability to see behind. The driver should keep a steady speed and avoid sudden braking so the following driver is not surprised.

Question 45Rules of the Road

A driver approaches a junction where a traffic light is broken and flashing amber. What is the correct action?

  1. Proceed at normal speed because the lights are not working
  2. Stop and wait for the lights to be repaired
  3. Treat the junction with caution, yield to traffic on the major road and proceed only when it is safe Correct answer.
  4. Treat the junction as a stop sign and remain stopped indefinitely

Explanation

When traffic lights are out of order or flashing amber, drivers must approach with caution and apply the rules that would apply at an uncontrolled junction. That means yielding to traffic on the major road and proceeding only when it is clearly safe.

Question 46Rules of the Road

A driver wishes to make a U-turn on a road with a continuous white centre line. What does the law require?

  1. The U-turn is permitted if the driver uses a driveway to reverse into
  2. The U-turn is permitted if the driver signals and checks mirrors
  3. The U-turn must not be made across a continuous white line, so the driver should continue to a suitable place to turn Correct answer.
  4. The U-turn is permitted at any time if the road is quiet

Explanation

A continuous white centre line may not be crossed, so a U-turn that would cross it is not permitted. The driver should continue until a place where the restriction ends or a suitable junction allows a safe turn.

Question 47Rules of the Road

What is the effect of a broken yellow line along the edge of the carriageway on a rural road?

  1. It prohibits parking at all times
  2. It marks a cycle lane that cars may not enter
  3. It indicates a minimum speed limit
  4. It marks the edge of the carriageway and may be crossed to access a premises or lay-by when safe Correct answer.

Explanation

A broken yellow edge line identifies the edge of the carriageway and may be crossed when it is safe to enter a premises, lay-by or hard shoulder. It does not create a parking prohibition or a cycle lane.

Question 48Rules of the Road

A driver is travelling on a road with a hard shoulder marked by a continuous yellow line. When may the driver use the hard shoulder?

  1. When the driver needs to make a phone call
  2. When the driver wishes to overtake a slower vehicle
  3. Only in an emergency or where signs permit its use as a running lane Correct answer.
  4. At any time to allow faster traffic to pass

Explanation

The hard shoulder is normally reserved for emergencies and for vehicles that have broken down, and a continuous yellow line marks its boundary. It may be used as a running lane only where signs specifically allow it, such as during certain motorway schemes.

Question 49Rules of the Road

What is the correct action when a driver's vehicle is involved in a collision where no one is injured but damage is caused to another vehicle?

  1. Drive on because no injury occurred
  2. Report the incident to the insurer without stopping
  3. Stop, exchange details with the other party, and report the incident to the Gardaí if details cannot be exchanged Correct answer.
  4. Leave a note only if the other driver is present

Explanation

Even where there are no injuries, a driver involved in a collision must stop and provide the necessary details to the other party. If details cannot be exchanged, the incident should be reported to the Gardaí as soon as practicable.

Question 50Rules of the Road

A driver is on a motorway and traffic ahead slows suddenly. What is the safest action?

  1. Maintain speed and rely on the vehicle ahead to move aside
  2. Change lanes immediately without signalling
  3. Check mirrors, reduce speed progressively and switch on hazard warning lights briefly to warn following traffic Correct answer.
  4. Brake as hard as possible without checking behind

Explanation

Progressive braking gives following drivers time to react, and a brief use of hazard lights can warn traffic behind of a sudden queue. Mirrors should be checked before reducing speed so the driver knows what is happening behind.