Cambodia Category B Driving Test flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Urban speed limit

In built-up and urban areas of Cambodia the default maximum speed is 40 km/h unless a posted sign shows a lower figure.

Rural road speed limit

Outside built-up areas on ordinary rural roads the default limit is 80 km/h; highways allow 100 km/h unless signs post a lower limit.

Helmet requirement

Every rider and passenger on a motorcycle or three-wheeled vehicle must wear a fastened safety helmet; this is a legal requirement, not optional.

Overtaking side in Cambodia

Traffic keeps right, so overtaking is done on the left. The driver being overtaken must keep right and must not accelerate to block the pass.

Red circular sign

A red circle with a white field is a prohibition sign, such as no entry, no overtaking, or a speed limit. It forbids the shown action.

Red triangular sign

A red triangle with a white field warns of a hazard ahead, such as a bend, junction, or pedestrian crossing. It requires reduced speed and attention.

Solid white centre line

A continuous solid white line at the centre of the road means do not cross it and do not overtake. Broken lines may be crossed when safe.

Flashing red signal

A flashing red light requires a full stop before the line, then proceed only when the way is clear, like a stop sign.

Two-second rule

Keep at least two seconds behind the vehicle ahead in dry weather. Double the gap to four seconds in rain, at night, or behind trucks.

Stopping distance formula

Stopping distance equals thinking distance plus braking distance. Braking distance grows with the square of speed, so doubling speed roughly quadruples it.

Truck blind spot rule

If you cannot see a truck driver's mirrors, the driver cannot see you. Never overtake a turning heavy vehicle on its inside.

Aquaplaning response

When standing water lifts the tyres, ease off the accelerator, hold the wheel steady, and avoid hard braking until steering grip returns.

Push-pull steering

Hold the wheel near 9 and 3 o'clock and pass the wheel between hands without crossing the arms, keeping control during sudden corrections.

Hill start technique

Hold the vehicle with the handbrake, raise the clutch to the biting point, add power, then release the handbrake smoothly so the car does not roll back.

Mirror-signal-manoeuvre

Before changing position: check mirrors, signal the intention, check the blind spot over the shoulder, then move only when clear.

Motorcycle cornering gaze

Keep the head and eyes up and look through the bend. The motorcycle follows the rider's gaze, so staring at a hazard pulls you toward it.

Uncontrolled junction rule

Where no signs or signals control a junction, give way to traffic approaching from your right unless markings indicate otherwise.

Roundabout priority

Traffic already circulating in the roundabout has priority. Vehicles entering must give way to circulating traffic before joining.

Pedestrian crossing priority

Pedestrians already on a marked crossing have absolute priority. Stop before the line and never overtake a vehicle stopped at a crossing.

Four-way stop order

When vehicles arrive together at a four-way stop, the vehicle on the right goes first, then the next in clockwise order.

Legal alcohol limit

Cambodia's legal blood alcohol limit for drivers is 0.05 g/dL (50 mg per 100 mL). Professional and public transport drivers are held to a stricter standard.

Only way to sober up

The body clears roughly one standard drink per hour. Coffee, cold showers, or food do not speed this up; only time restores sobriety.

Medication and driving

Antihistamines, sedatives, and some cough medicines cause drowsiness and impair driving. Read the label and do not drive if warned.

Sample refusal offence

Refusing a police request for a breath or blood sample in a drink-driving check is itself an offence and carries penalties.

Warning triangle placement

Place a warning triangle about 30 to 50 metres behind the vehicle on the road after a breakdown or crash, and switch on hazard lights.

Suspected spinal injury

Do not move a casualty suspected of spinal injury unless there is immediate danger such as fire. Keep them still and warm until help arrives.

Brake failure response

Pump the brake pedal, shift to a lower gear for engine braking, apply the handbrake gradually, and steer toward a safe escape route.

Tyre blowout response

Grip the wheel with both hands, ease off the accelerator, avoid hard braking, and steer straight until the vehicle slows before pulling over.

Tyre tread minimum

Car tyres must have at least 1.6 mm of tread depth. Check pressures cold, and look for cuts and bulges at the same time.

Checking engine oil

With the engine off and the vehicle level, pull the dipstick, wipe it, reinsert it, and confirm the level sits between the MIN and MAX marks.

Hot radiator warning

Never open a radiator cap while the engine is hot. Pressurised coolant can erupt and cause severe burns; wait until the engine is cold.

Licence class B

A class B Cambodian licence covers cars and light vehicles up to 3.5 tonnes. Larger trucks and buses require class C, D, or E.