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QuizTraffic rulesThailand

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
Thailand
True/false 17 Thailand 17 Car controls 109 Dashboard lights 40 Priority rules 9 Pedestrians 19 Cyclists 20 Show all 584
Why should you avoid resting your foot on the clutch pedal while driving?

551. Why should you avoid resting your foot on the clutch pedal while driving?

It can apply the parking brake.
✓ It can cause unnecessary clutch wear.
It can lock the steering.
It can increase tyre pressure.

Resting your foot on the clutch pedal can apply slight pressure to the clutch mechanism and cause unnecessary wear. Keep your left foot off the clutch when it is not needed.

Foot position near the clutch pedal
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid parking a petrol or diesel vehicle on dry grass?

552. Why should you avoid parking a petrol or diesel vehicle on dry grass?

The grass could prevent the parking brake from holding.
The grass could block the vehicle's ventilation system.
✓ Hot exhaust components could ignite the vegetation.
The tyres could lose pressure more quickly.

Parts of the exhaust system, especially the catalytic converter, can become very hot while driving. Parking over dry grass, leaves, or other combustible vegetation can create a fire risk. Park on a suitable non-flammable surface whenever possible.

Vehicle exhaust close to dry grass
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you keep the driver's footwell free of loose objects?

553. Why should you keep the driver's footwell free of loose objects?

✓ They could roll into the pedals and interfere with control.
They could make it harder to adjust the driver's seat.
They could damage the carpet around the pedals.
They could block the footwell ventilation.

Loose objects in the driver's footwell, such as bottles, cans, or rubbish, can roll into the pedal area and interfere with the accelerator, brake, or clutch. Keep the footwell clear so you can operate the pedals safely and without obstruction.

Loose objects in the driver's footwell
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why is a larger following distance needed at motorway speeds?

554. Why is a larger following distance needed at motorway speeds?

It prevents the tyres from becoming too warm.
It makes the vehicle easier to steer.
✓ You need more distance to react and stop safely.
It keeps the engine from working too hard.

At higher speeds, you travel farther during your reaction time and need more distance to brake. A larger gap gives you more time and space to stop safely.

Following distance between vehicles on a motorway
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you hold the steering wheel firmly during strong gusts?

555. Why should you hold the steering wheel firmly during strong gusts?

To reduce braking distance.
To make the power steering work better.
To keep the suspension level.
✓ To maintain control if the vehicle is pushed.

A firm but relaxed grip helps you respond safely to sudden changes caused by wind.

Driver holding the steering wheel during strong gusts
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this vehicle-control symbol indicate?

556. What does this vehicle-control symbol indicate?

✓ Steering-wheel adjustment.
Power-steering control.
Seat adjustment.
Exterior mirror adjustment.

This control adjusts the position of the steering wheel. Depending on the vehicle, the steering wheel may be moved up or down and forwards or backwards to obtain a safe and comfortable driving position.

Control for adjusting the steering-wheel position
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Where should you change a wheel after a puncture?

557. Where should you change a wheel after a puncture?

On soft ground if the jack appears stable.
✓ On firm, level ground well away from moving traffic.
Where the puncture occurred, as long as the hazard lights are on.
As close to moving traffic as possible to keep off the verge.

The vehicle must be stable and protected from traffic. Apply the parking brake and follow the manufacturer's wheel-changing instructions.

Wheel change on firm ground away from traffic
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Which distance unit is used on road signs in Thailand?

558. Which distance unit is used on road signs in Thailand?

✓ Kilometres.
Miles.

Road distances in Thailand are normally shown in kilometres.

Distance units used on road signs
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you never leave a petrol or diesel engine running in an enclosed space?

559. Why should you never leave a petrol or diesel engine running in an enclosed space?

The tyres can lose pressure more quickly.
The cooling system can stop working.
The battery can become overcharged.
✓ Dangerous carbon monoxide can build up.

Exhaust gases from petrol and diesel engines can contain carbon monoxide, a poisonous gas that can build up quickly in an enclosed or poorly ventilated space. Never leave the engine running inside a closed garage or similar area.

Running vehicle engine in an enclosed space
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How can worn tyres affect driving in heavy rain?

560. How can worn tyres affect driving in heavy rain?

They clear water from the road more effectively.
✓ They increase the risk of aquaplaning.
They reduce the chance of skidding at low speeds.
They make steering more responsive in heavy rain.

Tyre tread helps channel water away and maintain grip. Worn tyres cannot clear water as effectively, increasing stopping distance and the risk of aquaplaning.

Worn tyre tread and wet-road grip
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How can you check which fuel is suitable for your vehicle?

561. How can you check which fuel is suitable for your vehicle?

Use petrol unless the engine sounds like a diesel.
✓ Check the fuel-filler label, fuel cap, or vehicle information.
Ask another driver with a similar-looking vehicle.
Choose the fuel that has the same colour nozzle as last time.

Before refuelling, check which fuel type the vehicle requires. The correct fuel is often shown inside the fuel-filler flap, on or near the fuel cap, or in the vehicle information or owner's manual. Do not rely only on nozzle colours, as these can vary between filling stations and countries.

Checking the fuel label before refuelling
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do about a flat tyre on a high-speed road?

562. What should you do about a flat tyre on a high-speed road?

Drive slowly on the damaged tyre to the next exit.
Repair the tyre beside the traffic lane using hazard lights.
Ask passengers to help change the wheel quickly.
✓ Move to a protected location if possible and call for professional recovery.

Changing a wheel close to high-speed traffic is extremely dangerous. Move away from traffic and use professional assistance.

Vehicle stopped with a flat tyre on a high-speed road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before driving away after charging an electric vehicle?

563. What should you do before driving away after charging an electric vehicle?

Place the cable loosely beside the charging bay.
✓ Disconnect the charging cable and secure it properly.
Leave the charging flap open so it can cool.
Leave the cable connected until the vehicle starts moving.

Before driving away, disconnect the charging cable correctly and return it to the charger or store it securely in the vehicle, as appropriate. Close the charging port and check that the area around the vehicle is clear.

Disconnecting an electric vehicle after charging
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What can selecting a lower gear provide in a manual vehicle?

564. What can selecting a lower gear provide in a manual vehicle?

Automatic parking-brake operation.
✓ Greater engine braking.
A shorter steering ratio.
Higher tyre pressure.

Selecting a suitable lower gear can increase engine braking, helping the vehicle slow or control its speed without relying entirely on the brakes.

Manual gear selection for engine braking
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if you are approaching an animal-drawn vehicle?

565. What should you do if you are approaching an animal-drawn vehicle?

Drive close behind until there is room to pass.
Overtake quickly before the animal changes direction.
✓ Slow down and pass carefully with plenty of space.
Sound your horn so the driver notices you.

Animals can be startled by noise or sudden movement. Reduce speed, keep distance, and pass only when it is safe.

Vehicle approaching an animal-drawn vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if your vehicle begins to aquaplane?

566. What should you do if your vehicle begins to aquaplane?

✓ Ease off the accelerator and keep steering gently.
Brake firmly to force the tyres back onto the road.
Change lanes immediately to find a drier surface.
Turn the steering wheel sharply to regain grip.

Aquaplaning happens when the tyres lose contact with the road surface. Ease off the accelerator, avoid sudden movements, and wait for grip to return.

Vehicle losing tyre contact on a water-covered road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if a load extends beyond the vehicle?

567. What should you do if a load extends beyond the vehicle?

Secure only the part that remains inside the vehicle.
Leave it unmarked if it is easy to see.
✓ Make sure it is legal, secure, and properly marked when required.
Cover it with a cloth instead of marking it.

An extending load may create additional danger and may require specific markings or equipment under local rules.

Load projecting beyond a vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before releasing the parking brake on a slope?

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

Turn the steering wheel fully.
✓ Make sure the vehicle is securely controlled before releasing it.
Press the accelerator 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
Why is high-visibility clothing useful during a roadside breakdown?

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

It makes hazard warning lights unnecessary.
It protects you from injury if a vehicle hits you.
It gives you priority when walking beside the road.
✓ It makes you easier for approaching drivers and recovery workers to see.

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
Why should you avoid following another vehicle too closely in fog?

570. Why should you avoid following another vehicle too closely in fog?

To reduce fuel consumption in poor visibility.
To increase stopping distance.
✓ You may have too little time to react if it brakes suddenly.
To keep the windscreen clearer.

Following too closely reduces your reaction time and can lead to a collision if the vehicle ahead slows unexpectedly.

Following another vehicle in fog
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when temporary traffic lights show red?

571. What should you do when temporary traffic lights show red?

✓ Stop before the signal or temporary stop line.
Only permanent traffic lights are valid.
Follow the vehicle ahead through the signal.
Continue if the road ahead appears clear.

Temporary traffic signals must be obeyed like permanent signals. Stop and wait until you are permitted to continue.

Red signal on temporary roadworks traffic lights
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

572. What does this dashboard symbol indicate?

✓ Front fog lights.
Main beam.
Sidelights.
Rear fog lights.

This symbol indicates that the front fog lights are switched on. Front fog lights are designed to improve illumination close to the road in conditions of severely reduced visibility. Rules governing their use vary by country.

Front fog-light symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What is the main purpose of a motorway emergency lane or hard shoulder?

573. What is the main purpose of a motorway emergency lane or hard shoulder?

For driving when the motorway is busy.
✓ For emergencies and breakdowns.
For allowing faster vehicles to pass.
For overtaking slow-moving traffic.

A motorway emergency lane or hard shoulder is primarily intended for emergencies and breakdowns, not normal driving. In some places it may be opened temporarily as a traffic lane when signs or signals specifically permit this.

Motorway hard shoulder beside the traffic lanes
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does the ON position of a traditional ignition switch normally do?

574. What does the ON position of a traditional ignition switch normally do?

✓ Switches on the vehicle's electrical systems without operating the starter.
Switches off all electrical accessories.
Locks the steering.
Turns the starter motor.

The ON position normally switches on the vehicle's electrical and ignition systems without operating the starter motor. The engine is started by turning the key further to the START position.

ON position on a traditional ignition switch
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the brakes fade during a long descent?

575. What should you do if the brakes fade during a long descent?

Shift into neutral and let the vehicle roll freely.
✓ Select a lower gear and stop safely to allow the brakes to cool.
Switch off the engine to help slow the vehicle.
Keep pressing the brakes continuously all the way downhill.

Continuous braking can cause overheating and reduced braking performance. A lower gear provides engine braking and reduces demand on the brakes.

Vehicle descending a hill with overheating brakes
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Which roads are most likely to cause aquaplaning?

576. Which roads are most likely to cause aquaplaning?

✓ Roads with standing water or deep puddles.
Roads with loose chippings.
Roads with freshly painted road markings.
Roads exposed to strong sunlight.

Standing water can collect in dips, ruts, or puddles, increasing the chance that tyres will lose grip.

Standing water on a road surface
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should a disabled vehicle be towed?

577. How should a disabled vehicle be towed?

With nobody controlling the disabled vehicle.
✓ Use approved towing points and a method permitted by local rules.
Without checking the steering or brakes.
By attaching a rope to the bumper.

Incorrect towing can damage the vehicle or cause loss of control. Follow the manufacturer's instructions and local rules, and use professional recovery when the correct procedure is uncertain.

Disabled vehicle being towed
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the power steering suddenly stops assisting you?

578. What should you do if the power steering suddenly stops assisting you?

Accelerate to make the steering easier.
Keep driving normally if the vehicle still turns.
✓ Hold the wheel firmly, use greater steering effort, and stop safely.
Make sharp steering movements to test the remaining assistance.

The vehicle can normally still be steered, but much more effort may be required. Reduce speed and arrange an inspection.

Driver coping with a loss of power-steering assistance
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you not overtake near the top of a hill?

579. Why should you not overtake near the top of a hill?

✓ You may not see oncoming traffic or hidden hazards.
Your engine loses power near the top of a hill.
Speed limits always decrease near hill crests.
Vehicles ahead always have priority on hills.

Near the top of a hill, your view ahead is limited. Oncoming vehicles, cyclists, pedestrians, or obstacles may be hidden.

Hill crest hiding the road ahead
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

580. What does this dashboard symbol indicate?

Low tyre pressure.
Power-steering warning.
✓ Electronic stability control.
Anti-lock braking system.

This symbol relates to the electronic stability control (ESC) system. It may flash when the system is actively helping to maintain stability. If it remains illuminated, the system may be switched off or have a fault.

Electronic stability control symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this vehicle-control symbol indicate?

581. What does this vehicle-control symbol indicate?

✓ Electronic parking brake.
Cruise control.
Parking assistance.
Automatic brake hold.

This control operates the electronic parking brake. Pulling or pressing the switch applies or releases the parking brake, depending on the vehicle.

Electronic parking-brake switch and symbol
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Can drivers use a handheld phone while driving in Thailand?

582. Can drivers use a handheld phone while driving in Thailand?

✓ No.
Yes.

Drivers in Thailand are generally not allowed to use a handheld phone while driving.

Driver using a handheld phone
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when approaching a curve with poor visibility?

583. What should you do when approaching a curve with poor visibility?

Maintain your speed if the road ahead appears clear.
✓ Slow down and stay in your lane.
Move slightly toward the centre for a better view.
Follow the vehicle ahead closely through the curve.

A curve can hide oncoming traffic, obstacles, cyclists, or pedestrians. Reduce speed and keep a safe position.

Road bend with a restricted view ahead
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Should passengers travel in an ordinary goods trailer?

584. Should passengers travel in an ordinary goods trailer?

✓ No, passengers should travel in approved seating positions.
Only when the trailer has high sides.
Only on short journeys or quiet roads.
Yes, if the trailer is travelling at low speed.

An ordinary goods trailer is not designed to carry passengers and normally has no suitable seats or restraint systems. Passengers should travel in seating positions designed and approved for carrying people. Special passenger-carrying trailers may be subject to different local rules.

Ordinary goods trailer and passenger safety
AI-generated by Traffic-rules.com • WCIT • CC BY-SA