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Cambodia Category B Driving Test study materials
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Cambodia Category B Driving Test practice questions

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Question 1Cambodian Traffic Law and Road Regulations

Under Cambodian traffic law, what is the maximum permitted blood alcohol concentration for a driver of a private car holding a standard Category B licence?

  1. 0.05 percent Correct answer.
  2. 0.00 percent
  3. 0.08 percent
  4. 0.10 percent

Explanation

Cambodian road traffic law sets the legal limit for ordinary drivers at 0.05 percent blood alcohol concentration, which corresponds to roughly 0.25 mg per litre of breath. Exceeding this threshold exposes the driver to fines and possible licence suspension. Professional and heavy-vehicle drivers face a stricter standard.

Question 2Cambodian Traffic Law and Road Regulations

On a Cambodian road without any posted speed limit sign in a built-up area, which speed should a Category B driver treat as the general maximum?

  1. 30 km/h
  2. 40 km/h Correct answer.
  3. 60 km/h
  4. 90 km/h

Explanation

Where no sign indicates otherwise, Cambodian traffic regulations apply a general limit of 40 km/h inside towns and built-up areas. Drivers must also reduce speed below that figure when conditions such as rain, traffic or poor visibility require it. Higher default limits apply only outside built-up areas.

Question 3Cambodian Traffic Law and Road Regulations

What does a circular sign with a red border and a red diagonal slash across a black symbol mean for a Category B driver?

  1. The manoeuvre shown is recommended
  2. A warning about a hazard ahead
  3. A mandatory direction to follow
  4. The manoeuvre or vehicle shown is prohibited Correct answer.

Explanation

In Cambodia circular signs with a red border are regulatory signs, and the red diagonal slash marks a prohibition. The symbol inside shows exactly what is forbidden, such as overtaking, parking or entering with a particular vehicle type. Drivers must obey the prohibition immediately.

Question 4Cambodian Traffic Law and Road Regulations

When approaching a roundabout in Cambodia, which rule governs priority?

  1. Vehicles entering the roundabout have priority
  2. Vehicles already circulating in the roundabout have priority Correct answer.
  3. The largest vehicle always has priority
  4. The vehicle approaching from the right always has priority

Explanation

At a roundabout, traffic already circulating has the right of way and entering drivers must yield. A driver should slow down, look to the left for circulating vehicles and join only when it is safe. Signalling on exit tells other road users what you intend to do.

Question 5Cambodian Traffic Law and Road Regulations

A Category B driver is involved in a collision in which another person is injured. What is the driver's first legal obligation?

  1. Continue to the destination and report it within 24 hours
  2. Exchange details only if the other driver asks
  3. Stop immediately, give assistance and remain at the scene Correct answer.
  4. Drive to the nearest police station to report it

Explanation

Cambodian law requires any driver involved in a collision causing injury to stop at once, help the injured and stay at the scene until the authorities arrive. Leaving the scene of an injury accident is a serious offence. Reporting later does not replace the duty to stop.

Question 6Cambodian Traffic Law and Road Regulations

What is the purpose of the yellow lines painted along the edge of many Cambodian urban roads?

  1. They mark the edge of the carriageway and restrict parking Correct answer.
  2. They show where pedestrians may cross
  3. They mark a lane reserved for overtaking
  4. They indicate that parking is permitted anywhere

Explanation

Yellow edge lines delimit the carriageway and signal that stopping or parking along that stretch is restricted. Drivers should keep inside the marked area and use designated parking places instead. Pedestrian crossings are marked separately with zebra stripes.

Question 7Cambodian Traffic Law and Road Regulations

Which document must a Category B licence holder carry while driving in Cambodia?

  1. Only the vehicle registration card
  2. Only a national identity card
  3. The driving licence and the vehicle registration document Correct answer.
  4. A medical certificate and a tax receipt

Explanation

A driver must be able to present a valid driving licence of the correct category together with the vehicle's registration document during a police check. Carrying these documents is a legal requirement, not a courtesy. Failing to produce them can lead to a fine.

Question 8Cambodian Traffic Law and Road Regulations

What does a continuous solid white line in the centre of a two-way Cambodian road indicate?

  1. The road becomes one-way ahead
  2. Parking is allowed along the centre
  3. Crossing the line to overtake is prohibited Correct answer.
  4. Overtaking is permitted when the road is clear

Explanation

A solid white centre line means drivers must not cross it to overtake or change lanes. It is placed where visibility or road geometry makes overtaking dangerous. A broken line, by contrast, may be crossed when it is safe.

Question 9Cambodian Traffic Law and Road Regulations

A driver holding a Category B licence approaches a pedestrian zebra crossing where a pedestrian has stepped onto the stripes. What must the driver do?

  1. Stop and let the pedestrian cross Correct answer.
  2. Sound the horn and continue at the same speed
  3. Pass behind the pedestrian without slowing
  4. Change lane and accelerate past

Explanation

Drivers must give way to pedestrians who are on or about to use a marked crossing, slowing down and stopping if necessary. Failing to yield at a zebra crossing is a common cause of serious injury in Cambodian cities. The obligation applies even when traffic behind is impatient.

Question 10Cambodian Traffic Law and Road Regulations

A Category B driver wants to overtake a slower truck on a rural road. Which combination of conditions makes the overtake lawful?

  1. A solid centre line and a short straight section
  2. A broken centre line, clear oncoming traffic and no prohibition sign Correct answer.
  3. A junction ahead and a clear right lane
  4. A bend with good visibility and a broken line

Explanation

Overtaking is lawful only where the line marking permits crossing, the road ahead is clear of oncoming traffic and no sign forbids the manoeuvre. The driver must also signal, check mirrors and blind spots and return to the lane safely. Any one missing condition makes the overtake illegal or unsafe.

Question 11Cambodian Traffic Law and Road Regulations

While driving in heavy rain a Category B driver finds that stopping distance has increased and visibility is poor. What is the correct response under Cambodian traffic rules?

  1. Follow the vehicle ahead more closely to use its lights
  2. Switch on hazard lights and keep the same speed
  3. Maintain the posted speed to avoid holding up traffic
  4. Reduce speed and increase the following distance Correct answer.

Explanation

Traffic law requires drivers to adjust speed to the conditions, and wet roads lengthen braking distance while rain reduces visibility. Reducing speed and leaving a larger gap gives time to react. Hazard lights are for a stationary or broken-down vehicle, not for normal driving in rain.

Question 12Cambodian Traffic Law and Road Regulations

At an intersection with no signs, no signals and no markings, how should a Cambodian driver decide who goes first?

  1. The faster vehicle goes first
  2. The vehicle going straight always has priority
  3. The vehicle that sounds its horn first goes first
  4. The vehicle on the right has priority Correct answer.

Explanation

Where an intersection is uncontrolled, the general rule gives priority to the vehicle approaching from the right. Drivers should still slow down and be ready to yield to avoid a collision. Sounding the horn does not create any right of way.

Question 13Cambodian Traffic Law and Road Regulations

A driver with a Category B licence is stopped at a red light at a junction controlled by traffic police. The officer signals the driver to proceed although the light is still red. What should the driver do?

  1. Wait for the green light because the signal overrides the officer
  2. Obey the officer's signal and proceed carefully Correct answer.
  3. Proceed only after the vehicles behind sound their horns
  4. Turn around and take another route

Explanation

When a police officer is directing traffic, the officer's instructions take precedence over the light signals. The driver should follow the hand signal and move off cautiously, watching for pedestrians and cross traffic. Ignoring the officer can itself be an offence.

Question 14Cambodian Traffic Law and Road Regulations

What is the correct use of a seat belt by the driver and passengers in a private car in Cambodia?

  1. Only front-seat occupants must wear one
  2. Only the driver must wear one
  3. All occupants must wear one where belts are fitted Correct answer.
  4. Seat belts are optional on short trips in town

Explanation

Cambodian traffic rules require the driver and all passengers to use seat belts where the vehicle is fitted with them. Belts reduce the risk of death and serious injury in a collision. The duty applies on every trip, however short.

Question 15Cambodian Traffic Law and Road Regulations

A Category B driver is directed by a traffic officer to take a breath test at a roadside checkpoint. What does the law require?

  1. The driver must comply with the test Correct answer.
  2. The driver may refuse without any consequence
  3. The driver may comply only if a lawyer is present
  4. The driver may insist on a blood test instead

Explanation

Drivers are legally required to submit to breath testing when requested by authorised officers at a checkpoint. Refusing the test can lead to penalties comparable to driving over the limit. Cooperation keeps the check short and avoids additional offences.

Question 16Cambodian Traffic Law and Road Regulations

Which behaviour is prohibited for a Category B driver when using a mobile phone while the car is moving?

  1. Using a hands-free kit with both hands on the wheel
  2. Listening to navigation instructions from a mounted device
  3. Using the phone only when stopped at a red light
  4. Holding the phone to the ear to talk Correct answer.

Explanation

Holding a phone to the ear while driving is prohibited because it takes a hand off the wheel and distracts attention from the road. Hands-free use and glance-only navigation are permitted because they leave the driver in control. Even at a red light, holding and using a phone is discouraged and may be penalised.

Question 17Cambodian Traffic Law and Road Regulations

What is the meaning of a triangular sign with a red border showing a symbol of a slippery road surface?

  1. Vehicles with poor grip are prohibited
  2. Slippery road ahead; reduce speed Correct answer.
  3. Chains are compulsory on this road
  4. Slippery road ends; resume normal speed

Explanation

Triangular signs with a red border are warning signs, and the symbol indicates the specific hazard ahead. A slippery surface warning tells the driver to slow down and avoid sudden braking or steering. It does not impose a prohibition or end an earlier restriction.

Question 18Cambodian Traffic Law and Road Regulations

A Category B driver tows a small trailer on a Cambodian road. Which statement reflects the law and safe practice?

  1. Any load may be carried if it is tied with rope
  2. The load must be secured and must not obscure lights or the plate Correct answer.
  3. Passengers may ride in the trailer on rural roads
  4. The trailer needs no lights if the trip is short

Explanation

Loads must be properly secured so that nothing falls onto the road, and they must not hide the vehicle's lights, mirrors or number plate. Trailers need working lights and a visible plate. Carrying passengers in a towed trailer is unsafe and unlawful.

Question 19Cambodian Traffic Law and Road Regulations

In which situation does a Category B driver have to give way to an emergency vehicle using flashing lights and a siren?

  1. Only when the emergency vehicle is behind in the same lane
  2. Only at intersections controlled by signals
  3. By pulling over or clearing a path as soon as it is safe Correct answer.
  4. Never, because normal traffic rules still apply

Explanation

Drivers must make way for ambulances, fire engines and police vehicles showing flashing lights and sounding a siren. The correct response is to slow down, signal and move aside or stop where it is safe until the vehicle passes. Blocking such a vehicle can cost lives and is an offence.

Question 20Cambodian Traffic Law and Road Regulations

A Category B driver parks on a city street. Which location makes the parking unlawful?

  1. A marked parking bay along the kerb
  2. In a designated car park
  3. On a side street where parking is not restricted
  4. In front of a private driveway entrance Correct answer.

Explanation

Parking across a driveway blocks access for residents and emergency services and is prohibited. Parking is allowed in marked bays, in unrestricted side streets and in car parks. Drivers should also check for signs and yellow edge lines before leaving the car.

Question 21Cambodian Traffic Law and Road Regulations

A Category B driver is driving at night and an oncoming vehicle approaches with bright headlights on. What is the correct action?

  1. Speed up to pass the vehicle sooner
  2. Look towards the left edge of your lane and slow down Correct answer.
  3. Close your eyes briefly until the vehicle passes
  4. Switch on your own high beams to retaliate

Explanation

When dazzled by oncoming high beams, a driver should avoid staring at the lights and instead follow the left edge of the lane while reducing speed. Flashing high beams back increases the glare for both drivers. If vision is badly affected, it is safer to slow further or stop.

Question 22Cambodian Traffic Law and Road Regulations

A Category B driver is descending a long steep hill with a heavy load. Which technique best respects the rules on vehicle control?

  1. Rely only on the footbrake throughout the descent
  2. Coast in neutral to save fuel
  3. Select a low gear and use engine braking Correct answer.
  4. Switch off the engine to save fuel

Explanation

On a long descent, selecting a lower gear lets the engine limit speed and prevents the brakes from overheating and fading. Coasting in neutral or with the engine off removes engine braking and power assistance, which is dangerous and contrary to good vehicle control. The footbrake should be used in short applications to supplement engine braking.

Question 23Cambodian Traffic Law and Road Regulations

A Category B driver's licence has been suspended after a serious offence. What is the legal position if the person continues to drive during the suspension?

  1. It is allowed only during daylight hours
  2. It is an offence punishable by fine and possible imprisonment Correct answer.
  3. It is allowed if the vehicle belongs to a family member
  4. It is allowed if the driver carries the suspended licence

Explanation

Driving while the licence is suspended is an offence that can lead to a substantial fine, further suspension and even imprisonment. The owner of the vehicle does not acquire a right to drive it. Carrying the suspended licence does not make the driving lawful.

Question 24Cambodian Traffic Law and Road Regulations

A Category B driver approaches a level crossing where the barrier is raised but the red light is flashing. What is the correct decision?

  1. Drive around the barrier if it starts to lower
  2. Sound the horn and cross quickly
  3. Stop and wait until the light stops flashing Correct answer.
  4. Proceed because the barrier is up

Explanation

A flashing red light at a level crossing means a train is approaching, and the driver must stop even if the barrier has not yet come down. The barrier and the light serve different purposes, and the light gives the earlier warning. Crossing against the light risks a collision with a train.

Question 25Cambodian Traffic Law and Road Regulations

A Category B driver causes a collision that injures a pedestrian and then leaves the scene without stopping. Which description best matches the legal consequences in Cambodia?

  1. A serious offence carrying heavy penalties including imprisonment Correct answer.
  2. An offence only if the pedestrian later complains
  3. A civil matter settled only between insurers
  4. A minor administrative warning only

Explanation

Leaving the scene of an injury accident, often called a hit-and-run, is one of the most serious traffic offences in Cambodian law. It can result in imprisonment, heavy fines and licence withdrawal. The offence is established by the driver's conduct, not by whether the victim complains.

Question 26Cambodian Traffic Law and Road Regulations

Under Cambodian traffic law, what is the maximum permitted blood alcohol concentration for a driver of a private car holding a Category B licence?

  1. 0.05 grams per 100 millilitres of blood Correct answer.
  2. 0.08 grams per 100 millilitres of blood
  3. 0.00 grams per 100 millilitres of blood for all drivers
  4. 0.10 grams per 100 millilitres of blood

Explanation

Cambodian road traffic law sets the legal limit for drivers of private vehicles at 0.05 g per 100 ml of blood, which corresponds to roughly 0.25 mg per litre of breath. Professional and commercial drivers face a stricter limit, so the general private-car figure is the one that applies to a Category B holder. Exceeding it is an offence regardless of whether the driver feels impaired.

Question 27Cambodian Traffic Law and Road Regulations

A Category B driver sees a circular sign with a red border containing the number 40 in black. How should the driver interpret this sign?

  1. The distance to the next town is 40 kilometres
  2. A speed of 40 km/h is recommended but not compulsory
  3. The minimum permitted speed is 40 km/h
  4. The maximum permitted speed is 40 km/h on this road Correct answer.

Explanation

A red-bordered circle is a prohibitory sign, and the number inside states the maximum speed allowed in kilometres per hour. Cambodian roads use km/h, so the figure is not a distance. Driving faster than the posted figure is an offence even if the road appears clear.

Question 28Cambodian Traffic Law and Road Regulations

A Category B driver is involved in a collision in which another person is slightly injured. What does Cambodian traffic law require the driver to do first?

  1. Exchange details only if the other party asks for them
  2. Continue the journey and report the incident the next day
  3. Drive to the nearest police station without stopping
  4. Stop immediately, give assistance and remain at the scene Correct answer.

Explanation

Any driver involved in a collision causing injury must stop at once, help the injured and stay until the authorities allow departure. Leaving the scene, even to report later, is a serious offence. Reporting obligations come after the duty to stop and assist.

Question 29Cambodian Traffic Law and Road Regulations

What does a blue circular sign showing a white arrow curving to the right mean for a Category B driver?

  1. The road curves right with no obligation
  2. Turn right ahead is compulsory Correct answer.
  3. Turning right is prohibited
  4. A right turn is recommended for large vehicles

Explanation

Blue circular signs in Cambodia are mandatory signs, so the white arrow directs the driver to follow that direction. The obligation applies to all vehicles at that point, including private cars. A prohibition would instead be shown by a red-bordered circle with a diagonal bar.

Question 30Cambodian Traffic Law and Road Regulations

A Category B driver wishes to turn left at a junction while a pedestrian is crossing the road being entered. What is the correct action?

  1. Pass behind the pedestrian without slowing
  2. Complete the turn because vehicles have priority once the light is green
  3. Sound the horn and continue the turn slowly
  4. Wait until the pedestrian has cleared the path before completing the turn Correct answer.

Explanation

A driver turning into a road must give way to pedestrians already crossing it, even when the vehicle's signal is green. The turn should be completed only when the crossing is clear. Sounding the horn does not create a right of way over a pedestrian.

Question 31Cambodian Traffic Law and Road Regulations

On a Cambodian road with two lanes in the same direction separated by a broken white line, what does the line permit?

  1. No lane changing at any time
  2. Parking along the lane divider
  3. Crossing only to enter a private driveway
  4. Changing lanes when it is safe to do so Correct answer.

Explanation

A broken white line between lanes travelling in the same direction may be crossed for a lane change when traffic conditions allow. The driver must still signal and check mirrors and blind spots. Parking on a lane divider is never permitted.

Question 32Cambodian Traffic Law and Road Regulations

A Category B driver's car has a defective brake light. What does Cambodian law require before the car is used on a public road?

  1. The fault must be repaired so the vehicle is roadworthy Correct answer.
  2. The driver may drive if a passenger watches the rear
  3. The driver may drive during daylight only
  4. The driver may drive if the journey is short

Explanation

A vehicle used on a public road must be in a roadworthy condition, and defective lights make it unfit for use. The driver is responsible for checking the vehicle before driving. Short journeys or daylight do not exempt a vehicle with faulty lights.

Question 33Cambodian Traffic Law and Road Regulations

What does a red-bordered triangular sign showing a black cross symbol warn a Category B driver about?

  1. A place of worship ahead
  2. A hospital zone ahead
  3. A crossroads or junction ahead where extra caution is needed Correct answer.
  4. A railway crossing without barriers

Explanation

Triangular signs with a red border are warning signs, and the cross symbol indicates an intersection ahead. The driver should reduce speed and prepare to give way as required. A railway crossing is shown by a different symbol, such as a train or a barrier.

Question 34Cambodian Traffic Law and Road Regulations

A Category B driver is driving at night on an unlit rural road and no other traffic is present. Which lighting should be used?

  1. Hazard warning lights
  2. Main beam headlights, dipped when other vehicles approach Correct answer.
  3. Side lights only
  4. Front fog lights alone

Explanation

On an unlit road with no other traffic, main beam headlights give the driver the best view ahead. They must be dipped when an oncoming or preceding vehicle could be dazzled. Hazard lights and fog lights are not substitutes for proper night lighting.

Question 35Cambodian Traffic Law and Road Regulations

How must a Category B driver signal an intention to turn when the vehicle's indicators are working?

  1. Flash the headlights instead of indicating
  2. Sound the horn briefly before turning
  3. Use a hand signal only
  4. Use the direction indicator in good time before the manoeuvre Correct answer.

Explanation

A driver must give a clear signal of an intended turn in good time so other road users can react. The vehicle's direction indicators are the normal means of doing this. Hand signals are a fallback when indicators fail, and the horn or headlights do not communicate direction.

Question 36Cambodian Traffic Law and Road Regulations

A Category B driver approaches a roundabout and intends to take the second exit. What is the correct procedure?

  1. Enter without slowing because vehicles on the roundabout must stop
  2. Give way to traffic already on the roundabout and signal before leaving Correct answer.
  3. Signal right throughout the circuit until the exit
  4. Keep to the outside lane for the whole circuit

Explanation

At a roundabout the driver must yield to traffic already circulating and only enter when there is a safe gap. The exit should be signalled in good time before leaving. Vehicles already on the roundabout have priority over those entering.

Question 37Cambodian Traffic Law and Road Regulations

A Category B driver is convicted of driving without a valid licence. What is the legal consequence under Cambodian traffic law?

  1. A fine and possible further penalties imposed by the court Correct answer.
  2. Automatic confiscation of the vehicle by the police
  3. Nothing, provided the driver owns the car
  4. Only a verbal warning with no record

Explanation

Driving without a valid licence is an offence punishable by a fine and, depending on the circumstances, additional penalties such as licence suspension or court action. Ownership of the vehicle does not confer a right to drive it. A verbal warning alone is not the prescribed consequence.

Question 38Cambodian Traffic Law and Road Regulations

A Category B driver is following a slow-moving motorcycle on a narrow road and the motorcycle rider signals a left turn. What should the driver do?

  1. Reduce speed and allow the rider to complete the turn Correct answer.
  2. Overtake on the left as the rider slows
  3. Move close behind the rider to discourage the turn
  4. Sound the horn and maintain speed

Explanation

When a rider ahead signals a turn, following drivers must slow down and leave room for the manoeuvre to be completed safely. Overtaking on the side the rider is turning toward creates a collision risk. Pressure from close following is dangerous and unlawful.

Question 39Cambodian Traffic Law and Road Regulations

A Category B driver is carrying a child in the front passenger seat of a private car. Which statement reflects Cambodian law and safe practice?

  1. The child may sit unrestrained if an adult holds them
  2. The child may stand between the front seats if the journey is short
  3. The child must be restrained in an appropriate child seat or belt for their size Correct answer.
  4. The child may use the adult belt placed behind their back

Explanation

Passengers must be properly restrained, and a child needs a restraint suited to their size, such as a child seat or an adjusted belt. Holding a child in the arms does not protect them in a collision. Placing a belt behind the back defeats its purpose.

Question 40Cambodian Traffic Law and Road Regulations

A Category B driver is driving downhill and the footbrake begins to fade after prolonged use. What is the safest response?

  1. Apply the parking brake fully while moving
  2. Pump the brake pedal repeatedly while continuing at the same speed
  3. Switch off the engine to slow the car
  4. Select a lower gear to use engine braking and stop safely to let the brakes cool Correct answer.

Explanation

Brake fade occurs when brakes overheat, and the remedy is to reduce reliance on them by engaging a lower gear so the engine helps slow the car. The driver should then stop in a safe place and let the brakes cool. Continuing at speed or using the parking brake abruptly can cause loss of control.

Question 41Traffic Signs, Signals, and Road Markings

នៅផ្លូវប្រសព្វដែលមានស្តុបពណ៌ក្រហមលោតភ្លើង អ្នកបើកបរត្រូវធ្វើអ្វី?

  1. បន្តទៅមុខដោយល្បឿនដូចដើម ព្រោះស្តុបក្រហមលោតភ្លើងគ្រាន់តែជាការព្រមាន
  2. ឈប់តែពេលមានយានជំនិះផ្សេងកំពុងឆ្លងកាត់
  3. បន្ថយល្បឿនហើយបន្តទៅមុខប្រសិនបើផ្លូវទំនេរ
  4. ឈប់ពេញលេញនៅខាងមុខបន្ទាត់ឈប់ ហើយរង់ចាំរហូតដល់ភ្លើងប្រែពណ៌ Correct answer.

Explanation

ស្តុបក្រហមលោតភ្លើងមានន័យថាអ្នកបើកបរត្រូវឈប់ពេញលេញ មិនមែនគ្រាន់តែបន្ថយល្បឿនទេ។ ការឈប់ត្រូវធ្វើនៅមុនបន្ទាត់ឈប់ ឬមុនផ្លូវឆ្លងកាត់អ្នកថ្មើរជើង ហើយរង់ចាំរហូតដល់ស្តុបប្រែជាពណ៌បៃតង ឬភ្លើងឈប់លោត។ ការបន្តទៅមុខដោយគ្រាន់តែពិនិត្យផ្លូវទំនេរ គឺជាការបំពានច្បាប់ចរាចរណ៍។

Question 42Traffic Signs, Signals, and Road Markings

ខ្សែបន្ទាត់ពណ៌លឿងពីរជាប់គ្នាតាមបណ្តោយកណ្តាលផ្លូវមានន័យដូចម្តេច?

  1. អនុញ្ញាតឱ្យឆ្លងកាត់ដើម្បីវ៉ាយានជំនិះយឺត
  2. អនុញ្ញាតឱ្យឆ្លងកាត់តែពេលយប់
  3. អនុញ្ញាតឱ្យឆ្លងកាត់ប្រសិនបើគ្មានយានជំនិះផ្សេង
  4. ហាមឃាត់មិនឱ្យឆ្លងកាត់ ឬវ៉ាគ្រប់ករណី Correct answer.

Explanation

ខ្សែបន្ទាត់លឿងពីរជាប់គ្នាបង្ហាញព្រំដែនចរាចរណ៍ដាច់ខាត ដែលហាមឃាត់យានជំនិះគ្រប់ប្រភេទមិនឱ្យឆ្លងកាត់ ឬវ៉ា។ អ្នកបើកបរត្រូវរក្សាគន្លងរបស់ខ្លួន ទោះបីផ្លូវទំនេរក៏ដោយ។ ការឆ្លងកាត់ត្រូវធ្វើបានតែនៅកន្លែងដែលមានខ្សែបន្ទាត់ដាច់ ឬខ្សែពណ៌ស។

Question 43Traffic Signs, Signals, and Road Markings

ស្លាកសញ្ញារាងត្រីកោណសមភាពដែលមានស៊ុមក្រហម និងផ្ទៃពណ៌ស ជាទូទៅបង្ហាញពីអ្វី?

  1. ការព្រមានពីគ្រោះថ្នាក់ ឬស្ថានភាពខាងមុខ Correct answer.
  2. ការណែនាំអំពីសេវាកម្មនៅតាមផ្លូវ
  3. ការបង្ហាញល្បឿនអប្បបរមាដែលត្រូវបើក
  4. ការហាមឃាត់ដែលត្រូវគោរពយ៉ាងតឹងរ៉ឹង

Explanation

ស្លាកសញ្ញារាងត្រីកោណសមភាពស៊ុមក្រហមជាក្រុមស្លាកព្រមាន ដែលជូនដំណឹងអំពីគ្រោះថ្នាក់ ឬលក្ខខណ្ឌផ្លូវខាងមុខ។ អ្នកបើកបរត្រូវបន្ថយល្បឿន និងបង្កើនការប្រុងប្រយ័ត្ននៅពេលឃើញស្លាកនេះ។ ការហាមឃាត់ត្រូវប្រើស្លាករាងរង្វង់ស៊ុមក្រហមជាធម្មតា។

Question 44Traffic Signs, Signals, and Road Markings

ស្លាករាងរង្វង់ពណ៌ខៀវដែលមានលេខនៅខាងក្នុង មានន័យដូចម្តេច?

  1. ចំនួនគន្លងចរាចរណ៍ដែលមាន
  2. ចម្ងាយទៅផ្លូវប្រសព្វខាងមុខ
  3. ល្បឿនអតិបរមាដែលអនុញ្ញាត
  4. ល្បឿនអប្បបរមាដែលត្រូវរក្សា Correct answer.

Explanation

ស្លាករាងរង្វង់ពណ៌ខៀវដែលមានលេខខាងក្នុងជាស្លាកបញ្ជាល្បឿនអប្បបរមា ដែលតម្រូវឱ្យអ្នកបើកបររក្សាល្បឿនមិនឱ្យទាបជាងលេខនោះ។ ការបើកយឺតពេកអាចរំខានដល់លំហូរចរាចរណ៍។ ចំណែកល្បឿនអតិបរមាត្រូវបង្ហាញដោយស្លាកស៊ុមក្រហម។

Question 45Traffic Signs, Signals, and Road Markings

នៅផ្លូវប្រសព្វដែលគ្មានស្តុបភ្លើង និងគ្មានស្លាកឈប់ អ្នកបើកបរត្រូវអនុវត្តច្បាប់អ្វី?

  1. យានដែលមកពីខាងស្តាំមានសិទ្ធិឆ្លងមុន Correct answer.
  2. យានដែលបើកលឿនជាងមានសិទ្ធិឆ្លងមុន
  3. យានដែលមានទំហំធំជាងមានសិទ្ធិឆ្លងមុន
  4. យានដែលបើកតាមផ្លូវត្រង់មានសិទ្ធិឆ្លងមុនគ្រប់ករណី

Explanation

នៅផ្លូវប្រសព្វដែលគ្មានការគ្រប់គ្រង ច្បាប់ទូទៅតម្រូវឱ្យយានដែលមកពីខាងស្តាំទទួលសិទ្ធិឆ្លងមុន។ អ្នកបើកបរត្រូវបន្ថយល្បឿន សង្កេតមើលយានជំនិះជុំវិញ ហើយឈប់ប្រសិនបើចាំបាច់។ សិទ្ធិឆ្លងមុនមិនអាស្រ័យលើទំហំ ឬល្បឿនរបស់យានទេ។

Question 46Traffic Signs, Signals, and Road Markings

ខ្សែបន្ទាត់ពណ៌សដាច់ៗនៅកណ្តាលផ្លូវមានន័យដូចម្តេច?

  1. ហាមឃាត់ការវ៉ាយានជំនិះគ្រប់ករណី
  2. បង្ហាញថាយានត្រូវឈប់នៅចំណុចនេះ
  3. បង្ហាញថាផ្លូវនេះជាផ្លូវឯកទិស
  4. អនុញ្ញាតឱ្យវ៉ា ឬឆ្លងកាត់នៅពេលមានសុវត្ថិភាព Correct answer.

Explanation

ខ្សែបន្ទាត់ពណ៌សដាច់ៗបង្ហាញថាការវ៉ា ឬការឆ្លងកាត់ត្រូវបានអនុញ្ញាត ប៉ុន្តែត្រូវធ្វើឡើងនៅពេលមានសុវត្ថិភាព និងមិនរំខានដល់យានផ្សេង។ អ្នកបើកបរត្រូវពិនិត្យកញ្ចក់ និងសញ្ញាសម្គាល់មុនពេលវ៉ា។ ការហាមឃាត់វ៉ាត្រូវប្រើខ្សែបន្ទាត់ជាប់គ្នា។

Question 47Traffic Signs, Signals, and Road Markings

ស្លាករាងប្រាំបីជ្រុង (ដូច STOP) នៅផ្លូវប្រសព្វតម្រូវឱ្យអ្នកបើកបរធ្វើអ្វី?

  1. បើកស្តុបអន្តរាយហើយបន្ត
  2. បន្ថយល្បឿនប៉ុណ្ណោះ
  3. បន្តទៅមុខដោយមិនចាំបាច់ឈប់
  4. ឈប់ពេញលេញ ហើយផ្តល់សិទ្ធិដល់យានផ្សេង Correct answer.

Explanation

ស្លាកឈប់រាងប្រាំបីជ្រុងតម្រូវឱ្យយានឈប់ពេញលេញនៅបន្ទាត់ឈប់ ឬនៅមុនផ្លូវប្រសព្វ។ បន្ទាប់ពីឈប់ហើយ អ្នកបើកបរត្រូវផ្តល់សិទ្ធិដល់យានដែលមានសិទ្ធិឆ្លងមុន និងអ្នកថ្មើរជើង។ ការបន្ថយល្បឿនធម្មតាមិនគ្រប់គ្រាន់ទេ។

Question 48Traffic Signs, Signals, and Road Markings

អ្នកកំពុងបើករថយន្តហើយឃើញស្លាកព្រមាន «ផ្លូវកោងទៅឆ្វេង»។ តើអ្នកគួរធ្វើអ្វីមុនចូលផ្នែកកោងនោះ?

  1. ឈប់ភ្លាមនៅកន្លែងនោះដើម្បីពិនិត្យផ្លូវ
  2. ប្តូរទៅគន្លងខាងស្តាំភ្លាមៗ
  3. បន្ថយល្បឿនមុនចូលផ្នែកកោង ហើយរក្សាគន្លងរបស់ខ្លួន Correct answer.
  4. បង្កើនល្បឿនដើម្បីឆ្លងផុតផ្នែកកោងឱ្យលឿន

Explanation

ស្លាកព្រមានផ្លូវកោងជូនដំណឹងថាអ្នកនឹងជួបផ្នែកកោងដែលមានដែនកំណត់មើលឃើញ។ ការបន្ថយល្បឿនមុនចូលផ្នែកកោងជួយឱ្យអ្នកគ្រប់គ្រងចង្កូតបានល្អ និងរក្សាគន្លងដោយមិនឆ្លងខ្សែកណ្តាល។ ការបង្កើនល្បឿននឹងបង្កហានិភ័យធ្លាក់ចេញពីផ្លូវ។

Question 49Traffic Signs, Signals, and Road Markings

ខ្សែបន្ទាត់ពណ៌លឿងជាប់គ្នាមួយនៅខាងអ្នកបើកបរ និងខ្សែដាច់នៅខាងយានផ្សេង មានន័យដូចម្តេចសម្រាប់អ្នក?

  1. អ្នកអាចឆ្លងកាត់បាន ប៉ុន្តែយានខាងផ្សេងមិនអាច
  2. យានទាំងសងខាងត្រូវឈប់រហូត
  3. ខ្សែនេះបង្ហាញថាផ្លូវជាឯកទិស
  4. អ្នកមិនត្រូវឆ្លងកាត់ទេ តែយានខាងផ្សេងអាចឆ្លងបាន Correct answer.

Explanation

នៅពេលខ្សែលឿងជាប់គ្នានៅខាងអ្នកបើកបរ ការឆ្លងកាត់ត្រូវហាមឃាត់សម្រាប់អ្នក ទោះបីខ្សែខាងយានផ្សេងជាខ្សែដាច់ក៏ដោយ។ ការអនុញ្ញាតអាស្រ័យលើខ្សែដែលនៅជិតយានរបស់អ្នកបំផុត។ ដូច្នេះយានដែលមកពីទិសផ្ទុយអាចឆ្លងបាន តែអ្នកមិនអាចទេ។

Question 50Traffic Signs, Signals, and Road Markings

ស្លាកព្រមាន «ផ្លូវឆ្លងកាត់អ្នកថ្មើរជើង» តម្រូវឱ្យអ្នកបើកបរធ្វើអ្វីនៅពេលជិតដល់?

  1. វ៉ាយានដែលឈប់នៅមុខដោយរហ័ស
  2. បន្ថយល្បឿន និងត្រៀមឈប់ឱ្យអ្នកថ្មើរជើងឆ្លងកាត់ Correct answer.
  3. បើកស្តុបអន្តរាយរហូតឆ្លងផុត
  4. បន្តល្បឿនដូចដើមព្រោះអ្នកថ្មើរជើងត្រូវរង់ចាំ

Explanation

ស្លាកផ្លូវឆ្លងកាត់អ្នកថ្មើរជើងជូនដំណឹងថាមានកន្លែងឆ្លងកាត់ខាងមុខ ដែលអ្នកបើកបរត្រូវបន្ថយល្បឿន និងត្រៀមឈប់។ អ្នកថ្មើរជើងដែលកំពុងឆ្លងកាត់ ឬឈររង់ចាំមានសិទ្ធិឆ្លងមុន។ ការវ៉ាយានដែលឈប់ឱ្យអ្នកថ្មើរជើងគឺជាការបំពានធ្ងន់ធ្ងរ។