Denmark Category C1 Light Truck Theory Test key terms

The Danish Road Traffic Act. It sets the basic rules for all road users in Denmark, including speed limits, right of way, overtaking, lighting, and penalties. It is the legal foundation for the theory test.

Obligation to give way. It determines who must yield at junctions, roundabouts, and crossings. In Denmark the default rule is yield to traffic from the right unless signs, markings, or exit-from-a-property rules say otherwise.

Right-hand priority rule. Where no signs or markings regulate a junction, you must give way to vehicles approaching from your right. It applies in built-up areas and on unregulated rural crossings.

Roundabout. Traffic already circulating has priority, and entering drivers yield. You signal left before entering only when you intend to leave after more than half the circle, and always signal right before exiting.

Speed limit. Standard Danish limits are 50 km/h in built-up areas, 80 km/h outside them, and up to 110 or 130 km/h on motorways. Limits on the specific road are shown by signs and apply until changed or ended.

Motorway. A dual-carriageway road with grade-separated junctions, reserved for motor vehicles capable of the required speed. Trucks over 3.5 tonnes are generally limited to 80 km/h and must keep right except when overtaking.

Expressway. A high-speed road for motor vehicles, usually with at-grade or partly separated junctions and a lower limit than a motorway. The same right-hand driving and overtaking discipline applies.

Safety distance to the vehicle ahead. It must allow stopping if the vehicle in front brakes suddenly. A common guide is the two-second rule, extended in rain, on ice, or when fully loaded.

Braking distance. The distance travelled from the moment the brakes are applied until the vehicle stops. It grows with the square of speed, so doubling speed roughly quadruples braking distance, and it increases on wet or icy roads.

Reaction time. The delay between noticing a hazard and acting, typically about one second for an alert driver. During this time the vehicle still travels at full speed, adding to total stopping distance.

Clear view. The driver must have an unobstructed view of the road and mirrors; windows, mirrors, and lights must be kept clean and free of snow, ice, and dirt. Loads or stickers must not block the field of vision.

Blind spot. The area beside and behind the truck that mirrors do not show. In a C1 vehicle the blind spot is large, so you must check it directly and use extra mirror systems before turning or changing lanes.

Mirrors. A C1 truck needs the prescribed exterior mirrors giving a wide view along both sides, plus a front or close-proximity mirror where required. They must be adjusted before driving and checked regularly while moving.

Vehicle registration. A C1 truck must be registered in the Danish motor vehicle register (Motorregisteret) with its owner, weight, and use. Driving an unregistered or deregistered vehicle on public roads is not permitted.

Registration plate. It identifies the registered vehicle and must be correctly mounted, clean, and legible. Plates may not be covered, bent, or altered, and a trailer needs its own plate.

Periodic technical inspection. Vehicles are inspected at authorised test centres at intervals set by vehicle type and age. The inspection checks brakes, lights, steering, tyres, emissions, and structure, and a passed vehicle receives a valid inspection record.

Braking system. A C1 truck has a service brake, a parking brake, and often an engine or exhaust brake. The system must be free of leaks, respond evenly, and pass the inspection test; air-brake vehicles must build pressure before driving.

Engine or exhaust brake. A retarder that slows the vehicle without using the wheel brakes, useful on long descents to prevent brake fade. It supplements but never replaces the service brake.

Tyre tread depth. Danish rules require a minimum tread depth on truck tyres, and tyres must be correctly inflated and free of cuts or bulges. Winter conditions demand adequate tread and, where required, winter tyres.

Winter tyres. Tyres marked for winter use, fitted when roads are snowy or icy. They improve grip and shorten stopping distance, but they do not remove the need to reduce speed in winter conditions.

Total permitted weight. The maximum authorised mass of the vehicle including load, fuel, driver, and passengers. It is stated on the registration document and must never be exceeded, as overloading affects braking and stability.

Payload. The difference between the permitted total weight and the unladen weight. It is the maximum weight of goods, equipment, and people the truck may carry, and it shrinks if extra equipment is added.

Axle load. The weight carried by a single axle or axle group. Each axle has a permitted maximum, and load must be distributed so no axle is overloaded even when the total weight is legal.

Load securing and distribution. Goods must be placed and tied so they cannot shift, fall, or affect steering and braking. Heavy items go low and over the axles, and the load must stay within weight and dimension limits.

Overhang. The part of the load projecting beyond the front or rear of the vehicle. It must be marked with a warning flag or marker in poor light and must stay within the permitted length and projection limits.

Trailer. A towed unit whose weight, braking, and coupling must match the towing vehicle's permitted limits. A trailer has its own registration plate and must be securely coupled with safety connections before driving.

Drawbar trailer or caravan-style trailer. It is coupled to the truck and adds weight and length, changing braking and turning behaviour. Reversing and cornering require wider swings, and the coupling must be checked before each trip.

Driving and rest time rules. EU rules limit daily driving to nine hours, extendable to ten twice a week, with required breaks and daily and weekly rest. A C1 truck used commercially generally falls under these rules.

Tachograph. A device recording driving time, speed, and distance. It must be used correctly, with driver cards inserted and mode switches set, and records must be kept and shown on request during roadside checks.

Required break. After four and a half hours of driving a driver must take a break of at least 45 minutes, which may be split into 15 and 30 minutes. Time spent loading or waiting may count only under specific conditions.

Seat belt. Driver and passengers must wear belts where fitted, and the driver is responsible for ensuring children are properly restrained. Belts must be used even on short trips and in low-speed areas.

Alcohol limit. The legal blood alcohol limit in Denmark is 0.5 per mille, and stricter penalties apply above 2.0. Driving under the influence of drugs or medication that impairs driving is also prohibited.

Fatigue. Tiredness reduces reaction time and judgement and is a major cause of truck accidents. Long shifts and night driving increase risk, so planned breaks and recognising warning signs are essential.

Accident. At the scene you must stop, secure the site, warn other traffic, call emergency services, and give first aid within your ability. You must exchange details and report the accident to the police when required.

First aid. Basic life support at an accident: check responsiveness and breathing, call 112, control bleeding, and start CPR if trained. A first-aid kit and warning triangle should be carried in the vehicle.

Warning triangle. Used to warn traffic when the vehicle is stopped where it creates a hazard. It is placed at a suitable distance behind the vehicle, further away on fast roads, and must be visible to approaching drivers.

Eco-driving. A style of driving that reduces fuel use and emissions: smooth acceleration, early gear changes, anticipation, steady speed, and avoiding unnecessary idling. It lowers cost and wear on the truck.

Idling. Leaving the engine running while stationary. It wastes fuel, increases emissions, and is restricted in many places. Switch off during longer stops unless the engine is needed for equipment or cold-weather safety.

Fuel consumption. The amount of fuel used per distance, influenced by speed, load, tyre pressure, aerodynamics, and driving style. High speed and hard acceleration raise consumption sharply, especially with a loaded truck.

Slippery road conditions. Snow, ice, and wet leaves reduce grip and lengthen stopping distance. Reduce speed, increase following distance, brake gently, and avoid sudden steering on slippery surfaces.

Fog. It reduces visibility and calls for lower speed, correct fog lights, and larger gaps. Fog lights must be switched off when visibility improves to avoid dazzling other drivers.

Crosswind. Strong wind can push a high-sided truck or trailer out of its lane, especially on bridges and open stretches. Grip the wheel firmly, reduce speed, and allow extra room when passing.