DR Congo Driving Theory Test key terms

Octagonal red sign with white lettering that requires a complete halt at the line or intersection edge, followed by yielding to all cross traffic before moving off.

Inverted triangle sign warning that the driver must slow down and give way to traffic on the intersecting road, stopping only if necessary.

Default rule at unmarked intersections requiring a driver to yield to vehicles approaching from the right; it does not apply where signs or signals state otherwise.

Circular junction where entering traffic yields to vehicles already circulating; the roundabout itself is normally marked by a blue circular sign with white arrows.

Solid white or yellow line that must not be crossed or straddled, typically marking the centre of the road or the edge where overtaking is prohibited.

Broken line that may be crossed when it is safe and legal, for example to overtake or change lane, provided the manoeuvre does not endanger other road users.

Transverse white line at a stop sign or traffic light where the vehicle's front must halt; stopping beyond it can obstruct pedestrians or cross traffic.

Red traffic signal requiring a complete stop before the stop line; proceeding while red is an offence unless a police officer directs otherwise.

Amber signal warning that the light is about to turn red; a driver should stop unless doing so would be unsafe because of close following traffic.

Signal authorising movement, but only if the junction beyond is clear; a green light does not remove the duty to yield to pedestrians already crossing.

Police officer or authorised official whose hand signals override traffic lights and road signs; drivers must obey the officer's directions immediately.

Marked zebra or striped crossing where pedestrians have priority once they have stepped onto it; drivers must slow and stop to let them cross.

Overtaking manoeuvre that must be carried out only when visibility is clear, the line markings permit it, and no oncoming or following vehicle is endangered.

Gap kept behind the vehicle ahead, commonly at least two seconds in good conditions and more in rain, dust or poor visibility, to allow safe braking.

Total distance a vehicle travels before stopping, made up of the reaction distance during the driver's thinking time plus the braking distance itself.

Delay between a hazard appearing and the driver applying the brakes, typically around one second but longer when tired, distracted or impaired.

Loss of tyre contact with the road caused by a film of water, producing heavy steering and reduced braking; the driver should ease off the accelerator without braking sharply.

Air pressure inside each tyre, checked cold against the manufacturer's figures; incorrect pressure harms grip, fuel use and tyre life and raises blowout risk.

Depth of the tread grooves on a tyre; worn tread below the legal minimum reduces grip on wet roads and must be replaced before it becomes dangerous.

Engine oil level read on the dipstick with the vehicle level and engine off; too little oil risks seizure, so it should be checked regularly and topped up as needed.

Hydraulic fluid in the braking system that transmits pedal force to the brakes; a low level or spongy pedal signals a fault requiring immediate attention.

Coolant mixture circulating through the engine to control temperature; low level or overheating warns of a leak and the engine should not be run hot.

Parking brake that holds the vehicle stationary when parked; it must be fully released before driving or the rear brakes will overheat and lose effectiveness.

Hazard warning lights flashing on all four corners, used to signal a breakdown, accident or sudden slowing so other drivers are warned of the danger.

Reflective warning triangle placed behind a broken-down vehicle on the road to alert approaching traffic, at a distance suited to the road and visibility.

Reflective vest worn by anyone outside a broken-down vehicle at night or in poor visibility so approaching drivers can see them in time.

Drowsiness from long driving, night driving or illness that slows reactions and causes micro-sleeps; the only remedy is to stop and rest, not to push on.

Concentration of alcohol in the blood, measured in grams per litre; driving above the legal limit is an offence and impairs judgement, vision and reaction time.

Driving licence of the appropriate category that must be carried or produced on demand; driving without one, or outside its category, is a punishable offence.

Vehicle registration document naming the owner and vehicle details; it must be kept valid and produced during checks or when ownership changes.

Compulsory third-party insurance covering injury or damage caused to others; driving uninsured is illegal and the certificate must be shown on request.

Periodic official inspection of a vehicle's roadworthiness, covering brakes, lights, tyres and emissions; a valid certificate is required to keep the vehicle on the road.

Joint accident report form completed and signed by both drivers after a collision, recording circumstances and damage for the insurers to settle the claim.

Offence of leaving the scene of an accident without stopping, identifying oneself or helping the injured; it carries serious penalties.

First actions at a crash scene: secure the area, switch off engines, warn traffic and avoid moving an injured person unless there is immediate danger such as fire.

Recovery position used for an unconscious but breathing casualty, lying on the side with the airway clear, to prevent the tongue or vomit blocking breathing.

Emergency telephone number used to call police, fire or ambulance, giving the exact location, number of casualties and nature of the incident clearly.