Belgium Theory C key terms

The default Belgian rule that at an intersection without signs or markings, a driver must give way to vehicles approaching from the right. It applies unless a sign, marking, or traffic light indicates otherwise.

A regulatory sign or road marking requiring a driver to slow down and yield to traffic on the intersecting road. Stopping is only compulsory when necessary to let other vehicles pass safely.

A signed area where the maximum speed is 30 km/h for all vehicles, usually near schools or residential streets. The limit begins at the zone entry sign and ends only at the zone exit sign.

A built-up area marked by the F1 sign at its entry. Inside it the general speed limit is 50 km/h unless signs state otherwise, and parking and horn rules are stricter than outside.

The maximum permitted speed on a road, set by signs or general rules. For lorries it is often lower than for cars, and the applicable limit depends on road type, vehicle mass, and whether a built-up area is entered.

A solid white transverse line on the road that marks where a vehicle must stop at a stop sign, traffic light, or level crossing. The whole vehicle must remain behind this line.

The amber traffic light phase warning that the signal is about to turn red. A driver must stop unless stopping would be dangerous, and may not accelerate to pass through the intersection.

The manoeuvre of overtaking another road user. It must be carried out on the left, with sufficient visibility and space, and is forbidden where signs, markings, or limited sight distance make it unsafe.

The gap a driver must keep from the vehicle ahead so that a sudden stop can be handled safely. It grows with speed and with the mass and braking distance of the lorry.

The area around a vehicle that the driver cannot see directly or through the mirrors. On lorries the right-side blind spot is large, so drivers must check it carefully before turning or changing lane.

The periodic mandatory inspection of a vehicle by an approved centre. It checks roadworthiness, brakes, lights, emissions, and structure, and results in a certificate that may be approved, approved with remarks, or refused.

The official document issued after a periodic inspection. It states the result, lists any defects found, and gives the date by which the next inspection is due; it must be kept in the vehicle.

A defect found during inspection that makes the vehicle unsafe or non-compliant and leads to refusal or a restricted certificate. The vehicle must be repaired and re-inspected before normal use.

The assembly of components that slows and stops the vehicle, including service brakes, parking brake, and for heavy lorries an endurance braking system. It must be tested and kept in good working order.

An auxiliary braking device, such as an engine brake or retarder, that slows the vehicle without using the service brakes. It helps prevent brake fade on long descents with a loaded lorry.

The loss of braking efficiency caused by overheating of brake drums or discs after prolonged or heavy braking. It is avoided by using the retarder and selecting a lower gear on descents.

The air pressure inside a tyre, which must match the manufacturer's specification for the load carried. Incorrect pressure worsens handling, increases fuel use, and can cause tyre failure or uneven wear.

The depth of the grooves in a tyre tread, which must remain above the legal minimum. Insufficient tread reduces grip on wet roads and is a defect checked during periodic inspection.

The hours a professional driver spends at the wheel, recorded by the tachograph. EU rules cap daily and weekly driving and require breaks and rest periods within defined limits.

The recording device fitted to lorries that logs driving time, other work, availability, and rest. Modern digital tachographs also store speed and position data and must be used correctly by the driver.

The personal smart card inserted into a digital tachograph to identify the driver and record their activity. It is personal, must not be used by another driver, and must be carried during driving.

A required interruption of driving after a set period at the wheel. Under EU rules a driver must take a break of at least 45 minutes after 4.5 hours of driving, which may be split into two parts.

The period during which a driver may freely dispose of their time, without driving or other work. Daily and weekly rest minimums are set by EU social rules and recorded on the tachograph.

A signed declaration used to account for periods of driving, work, or rest that were not recorded by the tachograph, for example during sick leave or work for another employer. It must be carried and produced on request.

The practice of securing a load so it cannot shift, slide, or fall during transport. It uses lashings, straps, blocking, or friction mats and must comply with recognised securing standards.

A strap with a tensioning device used to tie down cargo to the vehicle. It must have adequate lashing capacity, be free of damage, and be tensioned according to the load's mass and friction.

The tension applied by a lashing device to hold a load down. It must be sufficient for the load's mass and friction, and the number of lashings is calculated from the required securing force.

The point at which the vehicle's and load's mass is balanced. Keeping it low and central improves stability; a high or off-centre load increases rollover risk and axle overload.

The portion of the total vehicle mass carried by one axle. It must not exceed the manufacturer's or legal maximum, and load distribution must be arranged to keep each axle within limits.

The maximum permissible mass of a vehicle including its load, as stated on the registration document. Exceeding it is an offence and increases braking distance and tyre stress.

Carrying more mass than the vehicle's permitted maximum, whether total or per axle. It is illegal, endangers road safety, damages infrastructure, and may invalidate insurance or lead to fines.

The dimensions of a vehicle and load, including width, height, and length. Lorries must stay within legal maximums, and oversized loads need special authorisation and marking.

The movement of a load that exceeds normal legal dimensions or mass limits. It requires an authorisation and often an escort, route plan, and warning markings to protect other road users.

The immediate help given to an injured person before professional services arrive. It includes securing the scene, calling emergency services, and providing basic care such as stopping bleeding or keeping the casualty warm.

The steps taken at an accident site to prevent further harm, such as warning other traffic, switching on hazard lights, and placing a warning triangle. Rescuers must never put themselves in danger.

A reflective warning triangle placed on the road behind a broken-down or accident vehicle to alert approaching drivers. It is positioned at a safe distance and is mandatory equipment in the vehicle.

A reflective vest worn by anyone leaving a vehicle stopped on the road in poor visibility or darkness. It makes the wearer visible to traffic and must be carried inside the cab.

The telephone number used to call emergency services, such as 112 in Belgium and across the EU. The caller should give the exact location, the number of casualties, and the hazards present.

A driving style in which the driver looks far ahead, predicts hazards, and adjusts speed smoothly. It reduces sudden braking and acceleration, which lowers fuel use and accident risk.

Fuel-efficient driving based on smooth acceleration, early gear changes, steady speed, and anticipating traffic. It reduces consumption, emissions, and wear on brakes and tyres without increasing journey time significantly.

The amount of fuel a vehicle uses over a distance or period. It depends on speed, load, tyre pressure, driving style, and use of auxiliary equipment such as air conditioning or refrigeration units.

The drag force of air acting against a moving vehicle. It rises sharply with speed, so moderating motorway speed and using cab deflectors reduces fuel consumption for lorries.

Running the engine while the vehicle is stationary. Unnecessary idling wastes fuel and increases emissions, so the engine should be switched off during long waits where the vehicle allows it.

An urban area where access is restricted for vehicles with high pollutant emissions. Drivers must check the rules and any required registration before entering with a lorry.