Denmark Category C Truck Theory Test flashcards

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

Speed limit built-up area

In Denmark the general speed limit in built-up areas is 50 km/h unless signs show otherwise. Signs override the general rule, so always check the posted limit.

Motorway speed limit

The general Danish motorway limit is 130 km/h, but trucks over 3.5 t are restricted to lower limits, typically 70–80 km/h, and posted signs always take priority.

Priority to the right

At junctions with no signs or signals, you must yield to traffic approaching from the right. Exiting a private road, gravel track or petrol station always yields to all traffic.

Warning triangle distance

Place the warning triangle at least 50 m behind the vehicle on ordinary roads and about 100 m behind on motorways, so approaching drivers have time to react.

Air brake low pressure

Air brake reservoirs normally hold about 8–10 bar. A low-pressure warning appears around 4.5–5.5 bar, and spring brakes apply automatically below about 2 bar.

Fifth wheel check

After coupling, confirm the locking jaw is fully closed and the handle secured. A visual pull test with the trailer brakes applied confirms a safe connection.

Truck tyre tread depth

Trucks must have at least 1.6 mm tread depth across the central three-quarters of the tyre. Check pressures cold and look for cuts, bulges and uneven wear.

AdBlue consumption

AdBlue is used in the SCR system to reduce NOx emissions. Consumption is roughly 3–6 % of diesel use; running out can derate the engine.

Stopping distance formula

Total stopping distance equals reaction distance plus braking distance. Reaction distance is speed in m/s times reaction time; braking distance grows with the square of speed.

Two-second rule

Keep at least two seconds behind the vehicle ahead in good conditions. Double it to four seconds on wet roads and use six or more seconds on ice.

Retarder use on descents

Use the retarder or engine brake on long descents to control speed without continuous foot braking. Switch it off on slippery surfaces where drive wheels could lock.

Off-tracking in turns

A truck and trailer cut the corner, so the rear wheels follow a tighter path than the front. Allow extra room and check mirrors through tight turns.

Axle load limits

Danish axle-load limits depend on tyre size and registration. Steering axles are typically up to 10 t and drive or trailer axles up to about 10–11.5 t each.

Lashing capacity rule

Lashing capacity depends on cargo weight and friction. As a rule of thumb, use at least one strap per 2–3 m of load length and more for low-friction loads.

Friction coefficients

Wood on wood has a friction coefficient around 0.6, while steel on steel is about 0.2. Lower friction means more lashings or anti-slip mats are needed.

Curtain-side cargo securing

Side curtains do not secure cargo by themselves. Use internal load bars, straps or a headboard to stop forward, rearward and sideways movement.

Daily driving limit

The daily driving limit is 9 hours, extendable to 10 hours twice per week. The weekly limit is 56 hours and the two-week limit is 90 hours.

45-minute break rule

After 4.5 hours of driving, take a break of at least 45 minutes. It may be split into 15 minutes then 30 minutes, in that order.

Daily rest requirement

Daily rest is normally 11 hours, reducible to 9 hours up to three times between weekly rests. A split daily rest is 3 hours plus 9 hours.

Weekly rest compensation

A reduced weekly rest of at least 24 hours must be compensated by an equivalent block of rest taken before the end of the third week following that week.

Emergency number Denmark

Dial 112 for fire, police and ambulance in Denmark. State your location, the number of casualties and any hazards such as leaking fuel or blocked lanes.

CPR ratio

For an unresponsive casualty who is not breathing normally, start CPR with 30 chest compressions followed by 2 rescue breaths, and continue until help arrives.

Brake fade prevention

Continuous foot braking on long descents overheats the brakes and causes fade. Use a low gear and the retarder so the engine does the braking work.

Eco-driving shift point

Accelerate smoothly and shift up early, around 1,200–1,500 rpm for a diesel, keeping engine speed low in the highest suitable gear to save fuel.

Idling fuel waste

Idling burns fuel without moving the vehicle. Switch off the engine for stops longer than about one to two minutes; modern engines need no long warm-up.

Aerodynamic aids

Cab-roof fairings, side skirts and roof spoilers reduce drag. Adjust them to the trailer height and keep them fitted to lower fuel consumption on long runs.

Driver CPC periodic training

Professional truck drivers complete 35 hours of approved periodic training every five years. The training covers safety, regulations, health and eco-driving.

Driver card rules

The digital tachograph driver card is personal and must not be lent or used by another driver. Report loss or damage and obtain a replacement within 15 days.

Tachograph record keeping

Keep the last 28 days of tachograph data available for inspection. Make manual entries for other work, availability and rest not recorded automatically.

Tunnel emergency procedure

If fire breaks out in a tunnel, stop, switch off the engine, leave the key, and evacuate on foot to the nearest exit or refuge. Do not turn around.

Fog light use

Use rear fog lights only when visibility is below about 50 m, and switch them off when visibility improves. Misuse dazzles following drivers.

Winter tyre decision

Winter tyres are not legally mandatory in Denmark, but M+S or 3PMSF tyres with good tread are strongly recommended when snow or ice is expected.

High winds on bridges

High-sided trucks are vulnerable to crosswinds on bridges. Reduce speed, hold the wheel firmly, and expect restrictions or closures in strong wind.