Liberia Driver's License Written Examination key terms
Liberia Driver's License Written Examination · Get comfortable with the vocabulary.
- Stop sign
- Related: Stop line, Right-of-way, Four-way stop
A red octagonal sign that requires a driver to come to a complete halt at the marked stop line or before entering the intersection, then yield to traffic before proceeding.
- Yield sign
- Related: Right-of-way, Merging
An inverted triangular sign directing a driver to slow down and give way to traffic on the intersecting road, stopping only if necessary to avoid conflict.
- Stop line
- Related: Stop sign, Crosswalk, Traffic signal
A solid white line painted across a lane showing the exact point where a vehicle must halt for a stop sign, traffic signal, or pedestrian crossing.
- Crosswalk
- Related: Pedestrian, Stop line
A marked portion of the roadway, shown by parallel white lines or stripes, where pedestrians cross and where drivers must yield or stop for them.
- Broken white line
- Related: Solid white line, Lane change
A dashed white lane marking that separates traffic moving in the same direction and may be crossed when it is safe to change lanes.
- Solid yellow line
- Related: Broken white line, Overtaking
A continuous yellow center line that marks the left edge of traffic flow and generally may not be crossed to overtake or pass another vehicle.
- Traffic signal
- Related: Steady red light, Flashing amber light, Stop line
An electrically operated light, such as red, amber, or green, that controls the movement of vehicles and pedestrians at an intersection or crossing.
- Steady red light
- Related: Traffic signal, Stop line
A continuous red signal meaning vehicles must stop behind the stop line and remain stopped until the light turns green, unless a permitted turn is allowed.
- Flashing amber light
- Related: Traffic signal, Steady red light
A blinking yellow signal warning drivers to slow down and proceed with caution, checking carefully for crossing traffic or hazards before continuing.
- Right-of-way
- Related: Four-way stop, Yield sign, Roundabout
The legal priority to move first through a junction or narrow passage; it is given by rules or signs and should never be assumed or demanded aggressively.
- Four-way stop
- Related: Stop sign, Right-of-way
An intersection where all approaches have stop signs; drivers stop fully and proceed in the order they arrived, yielding to the vehicle on the right if arriving together.
- Roundabout
- Related: Right-of-way, Yield sign
A circular intersection where traffic flows in one direction around a central island; entering drivers yield to vehicles already circulating inside.
- Merging
- Related: Yield sign, Following distance
Joining a stream of moving traffic from an entrance lane; the merging driver must adjust speed and yield to vehicles already on the main road.
- Overtaking
- Related: Solid yellow line, Blind spot
Passing a slower vehicle ahead, normally on the left, only when lane markings, sight distance, and oncoming traffic make the maneuver clearly safe.
- Speed limit
- Related: Safe speed, Following distance
The maximum lawful speed for a road, set by posted signs or by default rules, and always subject to reduction for weather, visibility, or road conditions.
- Safe speed
- Related: Speed limit, Following distance
A speed appropriate to current conditions such as rain, darkness, traffic, or road surface, which may be well below the posted maximum limit.
- Following distance
- Related: Two-second rule, Safe speed
The gap between your vehicle and the one ahead, measured in seconds by counting as the vehicle passes a fixed point; larger gaps are needed in poor conditions.
- Two-second rule
- Related: Following distance, Safe speed
A method of keeping a safe gap by counting two seconds between the vehicle ahead passing a landmark and your own vehicle reaching it.
- Blind spot
- Related: Overtaking, Lane change
The area around a vehicle not visible in the mirrors; drivers must turn their head to check it before changing lanes or pulling out.
- Lane change
- Related: Blind spot, Broken white line
Moving from one traffic lane to another after signaling, checking mirrors and blind spots, and confirming there is enough space to move safely.
- Blood alcohol concentration
- Related: Driving under the influence, Impairment
The measured amount of alcohol in a person's blood, expressed as a percentage or grams per deciliter, used to decide whether driving is legally permitted.
- Driving under the influence
- Related: Blood alcohol concentration, Impairment
Operating a vehicle while affected by alcohol, drugs, or other substances that reduce judgment, reaction time, or control, which is a serious offence.
- Impairment
- Related: Driving under the influence, Fatigue
Any reduction in a driver's ability to see, judge, react, or control the vehicle caused by alcohol, drugs, illness, fatigue, or strong emotions.
- Fatigue
- Related: Impairment, Distraction
Extreme tiredness that slows reactions and can cause a driver to fall asleep at the wheel; the safe response is to stop and rest, not to push on.
- Distraction
- Related: Fatigue, Hands-free device
Any activity that takes a driver's eyes, hands, or attention away from the road, such as phone use, eating, or adjusting controls while moving.
- Hands-free device
- Related: Distraction
Equipment that lets a driver talk on a phone without holding it; it reduces manual distraction but still takes mental attention from driving.
- Seat belt
- Related: Child restraint, Head restraint
A restraining strap that holds occupants in place during sudden stops or crashes; it must be worn correctly by the driver and all passengers where required.
- Child restraint
- Related: Seat belt
A specially designed seat or booster for young passengers that positions the seat belt correctly and protects them in a crash according to their size and age.
- Head restraint
- Related: Seat belt
The padded support at the top of a seat that limits backward head movement in a rear impact and helps prevent neck injury; it should be properly adjusted.
- Tyre tread depth
- Related: Tyre pressure, Skidding
The thickness of rubber remaining on a tyre's surface; too little tread reduces grip, especially on wet roads, and tyres must be replaced when worn.
- Tyre pressure
- Related: Tyre tread depth
The amount of air inside a tyre, checked when cold against the vehicle manufacturer's recommended figure; incorrect pressure harms grip, wear, and fuel use.
- Pedestrian
- Related: Crosswalk, Vulnerable road user
A person travelling on foot or using a wheelchair or similar aid; drivers must give way at crossings and take extra care near schools and markets.
- Vulnerable road user
- Related: Pedestrian, Cyclist, Motorcycle
A road user with little physical protection, such as a pedestrian, cyclist, motorcyclist, or child, who needs extra space and lower speeds from drivers.
- Cyclist
- Related: Vulnerable road user, Blind spot
A person riding a bicycle; drivers should pass with generous clearance, check for them before turning, and watch for them at junctions and in blind spots.
- Motorcycle
- Related: Vulnerable road user, Blind spot
A two-wheeled motor vehicle that is harder to see than a car; drivers must check mirrors and blind spots carefully and allow a full lane when passing.
- Heavy vehicle
- Related: Blind spot, Following distance
A large truck, bus, or other commercial vehicle with long stopping distances and wide blind spots; other drivers should avoid cutting in front of them.
- Skidding
- Related: Tyre tread depth, Safe speed
Loss of tyre grip on a slippery surface, causing the vehicle to slide; the response is to ease off the accelerator and steer smoothly without harsh braking.
- Collision report
- Related: Third-party insurance, Roadside emergency
A written record of a crash giving time, place, parties, vehicles, injuries, and damage, often required by police or insurers after an incident.
- Roadside emergency
- Related: Hazard lights, Collision report
A breakdown or crash situation where the driver should move off the road if possible, switch on hazard lights, and place a warning triangle behind the vehicle.
- Hazard lights
- Related: Roadside emergency
Flashing indicator lights on all four corners used to warn other road users of a stopped, slow, or broken-down vehicle in an emergency.
- Third-party insurance
- Related: Vehicle registration, Collision report
Cover that pays for injury or damage the insured driver causes to other people or their property, and which is normally required before a vehicle may be used on public roads.
- Vehicle registration
- Related: Third-party insurance, Driving licence
The official record linking a vehicle and its plate number to an owner; the certificate and plate must be valid and kept up to date while driving.
- Driving licence
- Related: Vehicle registration, Learner permit
A document issued by the authorities permitting a person to drive specified classes of vehicle, which must be carried or produced when lawfully requested.
- Learner permit
- Related: Driving licence
A provisional authorisation allowing a person to practise driving under stated conditions, such as supervision by a licensed driver and display of learner signs.