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QuizTraffic rulesUnited Kingdom

This interesting quiz helps you test your knowledge in a clear and visual way. With easy multiple-choice questions, you can quickly build confidence and learn new facts while keeping it simple, interactive, and fun.

Traffic signs
Traffic rules
United Kingdom
True/false 17 United Kingdom 32 Car controls 109 Dashboard lights 40 Priority rules 9 Pedestrians 19 Cyclists 20 Show all 599
What should you do when your view is blocked at a junction?

201. What should you do when your view is blocked at a junction?

Follow the vehicle ahead without checking yourself.
Drive through quickly before other traffic appears.
✓ Slow down and proceed carefully.
Sound your horn and enter the junction.

If your view is blocked, slow down and make sure the way is clear before entering the junction.

Restricted view of approaching traffic at a junction
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why is a microsleep especially dangerous while driving?

202. Why is a microsleep especially dangerous while driving?

It usually makes you drive more slowly.
✓ You can lose awareness of the road for several seconds.
It makes the steering feel heavier.
It only affects your ability to hear.

A microsleep is a brief, involuntary episode of sleep that can last for a few seconds. During that time, you may lose awareness of the road and travel a considerable distance without reacting to hazards.

Driver losing alertness at the wheel
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when livestock are on the road?

203. What should you do when livestock are on the road?

Use the verge to pass the animals.
✓ Slow down and follow the instructions of the person controlling them.
Drive through the group before it spreads across the road.
Follow closely so other traffic can overtake.

Livestock may spread across the road, stop suddenly, or change direction without warning. Slow down, keep a safe distance, avoid sudden movements or loud noises, and follow any instructions from the person controlling the animals.

Livestock being moved along a road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before attempting to jump-start a vehicle?

204. What should you do before attempting to jump-start a vehicle?

Start both vehicles before connecting the leads.
Connect the leads without checking their polarity.
Ignore battery damage if the terminals look clean.
✓ Check the owner's manual and make sure the connections are compatible.

Incorrect jump-starting can damage electrical systems, cause sparks, or make a battery explode. Connect the leads in the correct order before starting the vehicles, and follow the manufacturer's procedure exactly.

Preparing to jump-start a vehicle battery
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Are bicycle helmets generally required in United Kingdom?

205. Are bicycle helmets generally required in United Kingdom?

✓ No.
Yes, for all adults.
Yes, for all cyclists.

Bicycle helmets are not generally required for all cyclists in United Kingdom, although specific age or regional rules may apply.

Cyclist wearing a bicycle helmet
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Speed limits only apply when there is heavy traffic.

206. Speed limits only apply when there is heavy traffic.

✓ False.
True.

Speed limits apply at all times unless a different limit is clearly indicated.

Speed-limit sign beside a road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
When should you use rear fog lights?

207. When should you use rear fog lights?

✓ When visibility is seriously reduced by fog or similar conditions.
When visibility is slightly reduced.
When driving on an unlit road.
When driving on high-speed roads at night.

Rear fog lights are very bright and should only be used when visibility is poor enough to require them.

Rear fog lights used in severely reduced visibility
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if a trailer begins to sway?

208. What should you do if a trailer begins to sway?

Steer quickly from side to side.
✓ Ease off the accelerator and reduce speed smoothly.
Move into another lane to create more space.
Accelerate to pull the trailer straight.

Sudden steering or braking can worsen trailer sway. Stay calm, hold a steady course, and reduce speed smoothly.

Trailer swaying behind a towing vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What can uneven tyre wear indicate?

209. What can uneven tyre wear indicate?

The wheels are correctly aligned.
The tyres have reached normal operating temperature.
The vehicle has been driven mainly at low speeds.
✓ Incorrect pressure, poor alignment, or a suspension or braking problem.

Uneven wear may result from incorrect tyre pressure, wheel misalignment, worn suspension parts, or a brake that is not releasing properly.

Uneven wear across a vehicle tyre
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if EV charging equipment becomes unusually hot or smells burnt?

210. What should you do if EV charging equipment becomes unusually hot or smells burnt?

Cover the equipment to contain the heat.
Pour water over the equipment to cool it.
Keep charging until the vehicle reaches full charge.
✓ Stop the charging session, keep clear, and report the fault.

Unusual heat, a burning smell, smoke, sparks, or repeated charging faults can indicate an electrical problem. Stop using the charging equipment if it is safe to do so, keep clear of anything damaged or overheating, and report the fault or seek appropriate assistance.

Faulty electric-vehicle charging equipment
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do with the ignition key once the engine starts?

211. What should you do with the ignition key once the engine starts?

✓ Release it so it returns from START to ON.
Keep holding it in the START position.
Remove it from the ignition.
Turn it immediately to ACC.

Once the engine starts, release the ignition key so it returns from START to the ON position. Holding the key in START unnecessarily can keep the starter motor engaged.

Releasing the ignition key after the engine starts
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you leave extra space behind a vehicle climbing a steep hill?

212. Why should you leave extra space behind a vehicle climbing a steep hill?

Its tyres may warm up more quickly.
Its engine may become louder on the hill.
✓ It may slow down suddenly or roll backward.
Its headlights may point higher uphill.

Vehicles may lose speed or briefly roll backward when starting on a steep incline. Extra space gives you more time to react.

Vehicle following another up a steep hill
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why can headphones or very loud music be dangerous while driving?

213. Why can headphones or very loud music be dangerous while driving?

They can cause the speed limiter to switch off.
They can make road signs harder to read.
✓ They can make important warning sounds harder to hear.
They can make the mirrors more difficult to adjust.

Headphones or very loud music can reduce your awareness of horns, sirens, warning sounds, and surrounding traffic. Keep the volume at a level that allows you to remain aware of what is happening around the vehicle.

Driver wearing headphones at the wheel
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you press the clutch pedal fully when changing gear?

214. Why should you press the clutch pedal fully when changing gear?

To lock the gear lever in position.
To apply the brakes.
To increase engine speed.
✓ To disengage the engine fully from the transmission.

Pressing the clutch pedal fully disengages the engine from the transmission, allowing the gear to be changed smoothly and reducing unnecessary wear on the gearbox and clutch.

Clutch pedal pressed fully for a gear change
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if you see loose gravel on the road?

215. What should you do if you see loose gravel on the road?

Brake firmly before the tyres begin to slide.
✓ Slow down and avoid sudden steering or braking.
Follow the vehicle ahead closely in its tyre tracks.
Maintain your speed and avoid using the brakes.

Loose gravel reduces grip and can make the vehicle skid. Slow down and use smooth steering and braking.

Vehicle on a loose gravel road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you adjust the seat and mirrors correctly before driving?

216. Why should you adjust the seat and mirrors correctly before driving?

To make the steering and pedals easier to operate.
✓ To maintain good control and a clear view around the vehicle.
To make blind spots disappear completely.
To reduce the vehicle's stopping distance.

A correct driving position helps you operate the pedals and steering comfortably and maintain proper control. Correctly adjusted mirrors improve your view around the vehicle and help reduce blind spots. Adjust both before starting your journey.

Adjusting the driving position and mirrors before a journey
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should a three-point seat belt normally be worn during pregnancy?

217. How should a three-point seat belt normally be worn during pregnancy?

With the shoulder belt placed behind the back.
Using only the lap section of the seat belt.
Loosely fitted so it does not press against the body.
✓ With the lap belt low across the hips and the shoulder belt across the chest.

During pregnancy, a three-point seat belt should be worn correctly. The lap belt should sit low across the hips, below the abdomen, while the shoulder belt should pass across the chest and to the side of the abdomen. The belt should fit snugly and should not be placed behind the back or under the arm.

Seat-belt positioning during pregnancy
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if your vehicle catches fire?

218. What should you do if your vehicle catches fire?

Open the bonnet fully to find where the fire started.
Stay inside the vehicle while waiting for assistance.
Try to move personal belongings out before leaving.
✓ Stop, switch off the engine, evacuate everyone, and call the emergency services.

Move everyone well away from the vehicle and call emergency services. If the fire is small and it is safe to do so, use a suitable fire extinguisher. Opening the bonnet fully can supply additional oxygen and cause the fire to intensify.

Vehicle with a fire breaking out
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before releasing the parking brake on a slope?

219. What should you do before releasing the parking brake on a slope?

✓ Make sure the vehicle is securely controlled before releasing it.
Press the accelerator fully.
Turn the steering wheel fully.
Select neutral and release all pedals.

Before releasing the parking brake on a slope, make sure the vehicle cannot roll unexpectedly. Use the service brake or, when moving off in a manual vehicle, establish the clutch biting point and sufficient power before releasing the parking brake.

Preparing to release the parking brake on a slope
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Is a high-visibility vest required in cars in United Kingdom?

220. Is a high-visibility vest required in cars in United Kingdom?

✓ No.
Yes.

Cars in United Kingdom are not generally required to carry a high-visibility vest.

High-visibility vest for roadside use
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why is high-visibility clothing useful during a roadside breakdown?

221. Why is high-visibility clothing useful during a roadside breakdown?

✓ It makes you easier for approaching drivers and recovery workers to see.
It allows you to remain close to moving traffic.
It makes hazard warning lights unnecessary.
It protects you from injury if a vehicle hits you.

High-visibility clothing improves your visibility, especially at night or in poor weather, but you must still remain away from traffic.

High-visibility clothing worn during a roadside breakdown
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

222. What does this dashboard symbol indicate?

✓ Brake-system warning.
Anti-lock braking system warning.
Low tyre pressure.
Parking brake applied.

This symbol indicates a possible brake-system fault. If it remains illuminated after the parking brake is released, stop safely and have the braking system checked.

Brake-system warning symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before a long journey to reduce the risk of driver fatigue?

223. What should you do before a long journey to reduce the risk of driver fatigue?

Plan to drive through the night.
Keep the cabin as warm as possible.
✓ Get enough sleep before starting the journey.
Drink several energy drinks before leaving.

Getting enough sleep before a long journey helps reduce the risk of driver fatigue. Plan breaks in advance and avoid starting a long drive when you are already tired.

Rest and preparation before a long drive
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
When should you fasten your seat belt?

224. When should you fasten your seat belt?

Only when driving at high speed.
After joining traffic.
✓ Before the vehicle starts moving.
Only when traffic is heavy.

Fasten your seat belt before the vehicle starts moving and keep it fastened throughout the journey. Make sure your passengers are also safely seated and properly restrained.

Fastening a seat belt before setting off
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you expect if the engine suddenly stalls while the vehicle is moving?

225. What should you expect if the engine suddenly stalls while the vehicle is moving?

The steering and brakes will stop working completely.
✓ Steering and braking may require more effort, so move to a safe place.
The steering will become lighter as the vehicle slows.
Power assistance will continue working normally.

Power assistance may be reduced when the engine stops. Keep control, use the hazard lights if needed, and steer toward a safe stopping area.

Driver responding to an engine stall while moving
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do at a railway crossing without barriers?

226. What should you do at a railway crossing without barriers?

Maintain your speed if the tracks look clear.
Follow the vehicle ahead without checking yourself.
Stop only if you hear a train approaching.
✓ Stop if required, check carefully, and cross only when safe.

Approach railway crossings carefully, obey any requirement to stop and any warning signals or barriers, and cross only when it is safe.

Railway crossing without barriers
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What is the purpose of a pedestrian crossing?

227. What is the purpose of a pedestrian crossing?

To give pedestrians priority throughout the whole street.
To separate pedestrians from cyclists along the road.
✓ To help pedestrians cross the road safely.
To allow pedestrians to cross without checking traffic.

Pedestrian crossings provide a designated place where people can safely cross the road.

Pedestrian crossing across a road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

228. What does this dashboard symbol indicate?

Main beam.
✓ Dipped headlights.
Sidelights.
Rear fog lights.

This symbol indicates that the dipped headlights are switched on. Dipped headlights illuminate the road ahead while limiting glare for other road users.

Dipped-headlight symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you adjust your speed in bad weather?

229. Why should you adjust your speed in bad weather?

To keep the engine from overheating.
To make the windscreen wipers work better.
✓ Because visibility and grip may be reduced.
To reduce fuel consumption.

Rain, snow, fog, and ice can reduce visibility and tyre grip. Lower speed gives you more time and distance to react and stop safely.

Vehicle travelling in poor weather
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
When should you select reverse gear in a manual vehicle?

230. When should you select reverse gear in a manual vehicle?

Whenever you want to reduce speed.
While the vehicle is still moving forward slowly.
Before pressing the clutch pedal.
✓ After the vehicle has come to a complete stop.

Select reverse gear only after the vehicle has come to a complete stop. Press the clutch fully before selecting reverse to avoid unnecessary wear or damage to the transmission.

Selecting reverse gear in a stationary manual vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do after stopping because of a breakdown?

231. What should you do after stopping because of a breakdown?

Switch off the hazard lights once the vehicle has stopped.
Leave the engine running and keep the vehicle in neutral.
✓ Apply the parking brake, switch off the engine, and use hazard lights.
Stand behind the vehicle to warn approaching traffic.

Secure the vehicle so that it cannot move and use the hazard warning lights to alert approaching traffic. Where required and safe, place a warning triangle to give additional warning.

Broken-down vehicle with hazard warning lights
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What may happen to the steering when the ignition key is removed?

232. What may happen to the steering when the ignition key is removed?

The steering becomes lighter.
✓ The steering lock may engage.
The power steering remains fully active.
The wheels automatically straighten.

On vehicles fitted with a steering lock, removing the ignition key may allow the steering lock to engage. Never remove the key while the vehicle is moving.

Ignition key and vehicle steering lock
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid using an ordinary extension lead to charge an electric vehicle?

233. Why should you avoid using an ordinary extension lead to charge an electric vehicle?

It prevents the vehicle from locking while charging.
It can make the vehicle battery lose capacity immediately.
It prevents the charging port from closing afterwards.
✓ It may overheat because it is not designed for continuous high-power charging.

An ordinary household extension lead may not be designed for the sustained electrical load required for EV charging and can overheat. Use suitable approved charging equipment and follow the vehicle and charging-equipment manufacturer's instructions.

Extension lead used for electric-vehicle charging
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if an animal is standing on the road at night?

234. What should you do if an animal is standing on the road at night?

Switch off your headlights as you approach.
Sound your horn and continue at the same speed.
Drive around it immediately without slowing down.
✓ Slow down and be prepared to stop.

Animals may freeze, turn back, or move unpredictably when caught in vehicle headlights.

Animal standing on a road at night
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What is the purpose of the clutch pedal in a manual vehicle?

235. What is the purpose of the clutch pedal in a manual vehicle?

To slow the vehicle using the brakes.
To increase the engine speed.
✓ To disconnect the engine from the transmission.
To apply the parking brake.

Pressing the clutch pedal temporarily disconnects the engine from the transmission, allowing the driver to change gear or stop without stalling the engine.

Clutch pedal in a manual vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Can you assume that you are safe to drive the morning after drinking?

236. Can you assume that you are safe to drive the morning after drinking?

✓ No, alcohol may still remain in your body.
Yes, if you eat breakfast before driving.
Yes, sleep removes all alcohol from your body.
Yes, if you feel completely sober.

The body needs time to process alcohol. Sleeping, eating, showering, or drinking coffee does not instantly remove it.

Fitness to drive the morning after drinking
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should a motorcyclist avoid riding in another vehicle's blind spot?

237. Why should a motorcyclist avoid riding in another vehicle's blind spot?

The motorcycle's indicators may be harder to see.
The motorcycle's brakes may become less effective.
The vehicle ahead must always change lanes.
✓ The driver may not be able to see the motorcycle.

Motorcycles can be difficult to see, particularly when they remain in another vehicle's blind spot. Avoid staying alongside a vehicle where the driver may not see you, and choose a position where you are more likely to be visible.

Motorcycle in another vehicle's blind spot
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this vehicle-control symbol indicate?

238. What does this vehicle-control symbol indicate?

Electric window control.
Central door locking.
✓ Exterior mirror adjustment.
Mirror folding.

This control adjusts the vehicle's exterior mirrors. The driver normally selects the left or right mirror and then moves the control to change its angle.

Control for adjusting the exterior mirrors
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Who normally has priority at roundabouts in United Kingdom?

239. Who normally has priority at roundabouts in United Kingdom?

Traffic entering the roundabout.
✓ Traffic already on the roundabout.

In United Kingdom, traffic entering a roundabout normally gives way to traffic already circulating.

Vehicles approaching and circulating on a roundabout
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when traffic lights change to amber as you approach?

240. What should you do when traffic lights change to amber as you approach?

Accelerate to pass before the light turns red.
✓ Stop if you can do so safely.
Treat it like a green light until it turns red.
Continue at the same speed if the junction looks clear.

An amber light warns that the signal is changing. Stop if it is safe, but avoid sudden braking that could cause danger behind you.

Vehicle approaching an amber traffic light
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the windscreen becomes damaged while driving?

241. What should you do if the windscreen becomes damaged while driving?

✓ Reduce speed and stop safely if your view is affected.
Continue driving if you can still see part of the road.
Rely on the mirrors instead of the windscreen.
Remove loose glass while the vehicle is moving.

Severe damage can obstruct your view and weaken the glass. Do not continue if you cannot see the road clearly.

Damaged windscreen affecting the driver's view
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you check before starting a bicycle journey?

242. What should you check before starting a bicycle journey?

Only the tyres and chain.
Nothing if the bicycle worked properly yesterday.
✓ The brakes, tyres, lights, and steering.
Only the brakes if the journey is short.

A basic safety check can reveal problems with the brakes, tyres, lights, or steering before they cause an accident.

Checking a bicycle before a journey
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before using a pedestrian crossing?

243. What should you do before using a pedestrian crossing?

✓ Make sure it is safe to cross.
Rely on the crossing markings to make every vehicle stop.
Check only the lane nearest to you before crossing.
Cross once a driver makes eye contact with you.

Even at a pedestrian crossing, make sure approaching drivers have seen you and are able to stop before you cross.

Pedestrian checking traffic before using a crossing
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid blocking a junction?

244. Why should you avoid blocking a junction?

Your stopping distance becomes longer.
Junctions may only be entered at low speed.
Vehicles in a junction lose priority.
✓ Other traffic needs space to move safely.

Blocking a junction can prevent vehicles, cyclists, or pedestrians from moving safely. Enter only when there is enough space to drive through and clear the junction.

Traffic blocking a road junction
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the accelerator becomes stuck while you are driving?

245. What should you do if the accelerator becomes stuck while you are driving?

Press the accelerator harder to try to free it.
Keep driving and wait for the accelerator to release.
✓ Select neutral, brake firmly, and steer to a safe stopping place.
Switch off the engine immediately before selecting neutral.

Selecting neutral disconnects engine power from the wheels. Brake firmly, maintain steering control, and switch off the engine after stopping safely.

Stuck accelerator pedal in a vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if a direction indicator does not cancel after a turn?

246. What should you do if a direction indicator does not cancel after a turn?

✓ Return the indicator control to its neutral position.
Leave it flashing until the next turn.
Switch on the hazard warning lights.
Press the horn.

Direction indicators often cancel automatically after a turn, but if an indicator remains on, return the indicator control to its neutral position so you do not mislead other road users.

Returning the indicator stalk to its neutral position
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should a motorcycle helmet be worn correctly and securely fastened?

247. Why should a motorcycle helmet be worn correctly and securely fastened?

To improve the rider's hearing in traffic.
To prevent the motorcycle from skidding.
To reduce fuel consumption at higher speeds.
✓ To reduce the risk of serious head injury in a collision.

A correctly fitted and securely fastened motorcycle helmet helps protect the rider's head and can reduce the risk and severity of head injury in a collision or fall.

Motorcyclist wearing a securely fastened helmet
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should you normally apply the brake pedal for a smooth stop?

248. How should you normally apply the brake pedal for a smooth stop?

✓ Apply pressure progressively.
Pump the pedal repeatedly.
Use the parking brake instead.
Press it as hard as possible immediately.

For normal braking, apply the brake pedal progressively and smoothly. As the vehicle comes to a stop, easing the pressure slightly can help avoid a sudden jerk.

Progressive brake-pedal pressure for a smooth stop
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

249. What does this dashboard symbol indicate?

Power-steering warning.
Brake-system warning.
Charging-system warning.
✓ Service or maintenance required.

This symbol indicates that the vehicle requires servicing or maintenance. The exact meaning and required maintenance can vary between vehicles, so check the vehicle information display or owner's manual.

Service reminder symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when traffic is merging from another lane?

250. What should you do when traffic is merging from another lane?

Move closer to the vehicle ahead to keep your lane clear.
✓ Adjust your speed and leave space when safe.
Maintain your speed and expect them to merge behind you.
Move into another lane without checking around you.

When traffic merges, good observation and speed control help vehicles join safely without sudden braking or conflict.

Vehicle merging from an adjacent lane
AI-generated by Traffic-rules.com • WCIT • CC BY-SA