DGT B licence questions: Basic concepts

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What is the name given to the phenomenon caused by the excessive emission of sulphur compounds?
Are vehicle drivers obliged to take a breathalyser test if traffic officers require it during a preventive check?
Can respecting motorcycles’ right of way help prevent crashes, especially at junctions?
A pedestrian walks at night on the shoulder of an interurban road. Must they use an item to make them visible?
At a level crossing, what should you do if the barrier is moving to rise?
What is the purpose of no-entry prohibition signs?
Another car intends to join traffic. What obligation do drivers already travelling on the road have?
What is the most common way to enter a motorway?
A broken yellow line is beside the edge of the carriageway. What does it restrict on its own?
Which element is impaired by darkness when driving at night?
A traffic jam keeps your vehicle stopped inside a tunnel for more than two minutes. What must you do?
Is it prohibited to enter beyond this sign while pushing hand carts?
Any driver is obliged to…
On a road outside a built-up area with two lanes in your direction, which lane does a car normally use?
With a car safely parked, where should a cigarette end be placed to avoid throwing it onto the road?
Two vehicles meet on a narrow section with no priority signs and a gradient of at least 7%. The uphill vehicle cannot reach a passing place…
In a built-up area, a public transport bus signals that it will leave a marked stop. Must you facilitate the manoeuvre?
On vehicles with a width of less than one metre, the load must not project laterally by more than...
If, due to traffic circumstances, a vehicle is immobilised inside an underpass, the driver must, among other measures,...
What is the headrest fundamentally for?
When there is no free space nearby, is it permitted to double-park?
In a lorry under 3,500 kg maximum authorised mass fitted with seat belts, with adult occupants and no exemptions, who must fasten them?
As a general rule, without an emergency, may you park on the usable part of an interurban road’s shoulder?
If, while riding a motorcycle, you cannot avoid a pothole in the road, which of the following is the most appropriate course of action?
A 13-year-old wants to be a passenger on an ordinary two-wheel motorcycle authorised to carry a passenger. May they do so if all other…
Which of these functions may an area marked with a yellow zigzag have?
In low light, how does appropriate vehicle lighting contribute to safety?
The safest blood alcohol level for driving is...
What number-plate reading distance, with normal eyesight, does the regulation use to define an insufficiently lit road?
When a car overtakes a cyclist outside a built-up area, what minimum lateral clearance is required?
On an ordinary three-lane roundabout, without signs allowing an exit from another lane, where should you position yourself before leaving?
If a person has slower reactions, which situation can be particularly difficult when driving?
What is the maximum distance, in metres, that may be travelled in reverse when carrying out a parking manoeuvre?
A continuous M-2.4 line separates a specialised lane from adjacent basic lanes. How does its width compare with an ordinary continuous line?
Does the general equipment requirement require a fire extinguisher in a private car travelling without a trailer?
At a level crossing where the barriers are moving, a vehicle...
On a conventional road outside a built-up area, without a prohibition or emergency, how should you position the vehicle when parking…
Is it advisable for motorcyclists to wear gloves?
On a two-lane road running in the same direction, if after overtaking you are going to carry on overtaking, can you continue driving in the…
On noticing the special warning signals of an approaching ambulance on an urgent call, what should other drivers do?
Outside built-up areas, what lateral separation must a motorcycle rider leave from the protruding parts of another motorcycle they are…
A Spain-registered car’s load falls and obstructs the carriageway. Must the danger be signalled while removal is arranged?
You are on a paved road and a car approaches from an unpaved road on your right, with no signs governing priority. Must you give way solely…
Where must the loading and unloading of a vehicle take place?
In places where the visibility of signage is obstructed for the users affected by it, it is prohibited to...
On an interurban road, what circumstance can justify immobilising a vehicle on the usable shoulder if it cannot be moved somewhere safer?
A lorry of 3,500 kg MAM carries a regulatory alternative to changing a wheel. Must it additionally carry a full-size spare wheel?
What effect can ecstasy or MDMA have on driving?
What do advanced driver assistance systems, also known as ADAS, contribute to road safety?
Why is throwing a lit cigarette end out of the window prohibited?
A car is going to turn right and activates its right indicator sufficiently in advance, without a conflicting arm signal. Has it correctly…
When may a lorry up to 3,500 kg use a lane opened in the opposite direction to normal, if it is not expressly prohibited for that vehicle?
A car overtakes a pedestrian outside a built-up area on a carriageway with one lane in each direction. May it fully occupy the adjacent…
Is a vehicle with a combustion engine permitted to be driven without an exhaust silencer?
How many directions of travel do roads divided into two carriageways by a central reservation generally have?
Is voluntary parking inside a tunnel permitted?
If a breakdown immobilises a car at night on the shoulder of an interurban road, which lights must remain on?
Another vehicle causes a crash and its driver is civilly liable for your injuries. Can that vehicle’s compulsory insurance cover them?
At a regulated intersection with this sign, is turning right permitted?
Vehicles travelling on the hard shoulder of the road are prohibited from travelling side by side, except...
Outside a built-up area, with no usable pedestrian area and no exception requiring or justifying the right side, on which side should a…
If the barriers at a level crossing are moving...
Which of these lights requires stopping unless you are too close to stop safely when it comes on?
Which manoeuvre does the specific double-parking rule prohibit?
On a lorry less than 5 metres long, an indivisible load must not project by more than...
At a narrow section with no priority sign or steep gradient, if it is uncertain who entered first, which criterion determines priority?
At an R-5 sign at a narrow passage, may you enter if doing so would force an oncoming vehicle to stop?
What is the purpose of safety barriers at road edges and central reservations?
Due to roadworks on the carriageway, a lane has been opened in the opposite direction to normal. Can a car with a trailer use it?
A pedestrian walks outside a built-up area without a usable pedestrian area and is neither in an organised group nor pushing a vehicle. May…
Can the roads we drive on have several carriageways?
What does an illuminated red cross in an overhead lane signal indicate?
An adult taxi passenger without a medical-exemption certificate occupies a seat fitted with a belt. Must they buckle up for a short journey?
On a motorway, outside a tunnel or underpass, what distance must a 3,000 kg MAM lorry maintain from the vehicle ahead?
On an urban road, when overtaking a car on a motorcycle, what lateral clearance must you leave?
Under the ordinary conditions for using an HOV lane, may a car towing a trailer use it?
This sign warns of the proximity of...
May you voluntarily stop a motorcycle on the usable part of an interurban road’s shoulder?
In which of the following cases may the driver of a non-priority vehicle use audible warning signals outside built-up areas?
Is it compulsory to wear sunglasses when the sun is shining in the driver's eyes?
How must a passenger sit on the rear seat of a motorcycle without a sidecar?
Are three-wheeled vehicles required to have direction indicator lights?
At a junction with a STOP sign and stop line, with good visibility from the line, what must you do even if you see no other vehicles?
You drive a car straight ahead and notice that the following driver intends to overtake you. As a general rule, what must you do?
May a child over seven and under twelve travel on the rear passenger seat of a motorcycle authorised to carry a passenger?
You have stopped your car behind another vehicle before reaching a STOP line. When the vehicle ahead moves on, what must you do?
After a road crash, what should you do first before approaching the victims?
Is it advisable to signal to a pedestrian to cross the road?
How does this sign affect a lorry, considering only the restriction it shows?
On a motorway, from this sign onwards...
On the apron of a motorway toll station, is it permitted to pick up a hitchhiker?
What problem can clips used to make a seat belt fit less tightly cause?
A vehicle for people with reduced mobility has no specially designated route and has a usable, sufficiently wide right shoulder. Must it…
On a two-way carriageway with only two lanes in total, one per direction, for which manoeuvre may a driver normally use the left lane if…
Considering only this sign, may a moped enter?
Is it necessary to carry a high-visibility vest for a passenger in a car?
Are vehicles allowed to travel if the silencer is damaged and therefore does not perform its function effectively?
Before opening the doors to get out of a vehicle, you must always make sure that...
A privately used car that is eleven years old must undergo the periodic roadworthiness test...
What does a broken yellow line painted on the kerb or beside the carriageway edge regulate?