DGT B licence questions: Basic concepts

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In a quadricycle fitted with seat belts, with adult occupants and no exemptions, who must use them and on which roads?
With no higher-priority instruction or signal indicating otherwise, what must you do at this STOP sign?
Under the rules in force from 1 October 2026, must a bicycle rider aged 16 or over wear a helmet when riding on an urban road as part of…
Outside built-up areas, when voluntarily stopping to rest, what location should you choose in addition to obeying applicable prohibitions?
Must trailers and semi-trailers have a technical inspection card?
On a moped without a protective structure and belts qualifying for the documented exemption, must rider and passenger wear helmets?
When a driver joins a road via an acceleration lane, at what speed must they do so?
Does talking on a mobile phone pose any danger if you use a hands-free system?
What are the four environmental badges used to classify vehicles according to their level of pollution?
Is it mandatory for a moped to be insured in order to be driven?
Must a lorry driver with a fitted seat belt and no applicable exemption use it on both urban and interurban roads?
At properly signposted pedestrian crossings, overtaking...
On a motorway, if the adjacent lane is clear and changing lanes is safe and lawful, which manoeuvre can help a joining vehicle?
On a paved road outside built-up areas where it is permitted and with no applicable lower limit, what is the generic maximum for a light…
Can civil protection personnel prevent vehicles from accessing the route affected by a sporting event?
What is the legal rule on driving with amphetamines present, including the medical-treatment exception?
The driver is required to give warning by means of visual signals...
Which of these behaviours creates risk for a pedestrian?
Because of congestion, a vehicle remains immobilised for over two minutes inside an underpass. What must the driver do with the engine and…
In a tunnel you drive a passenger car with maximum authorised mass not exceeding 3,500 kg and do not intend to overtake. What is the…
As a general rule, which vehicles may tow an accident-damaged or broken-down vehicle, excluding the mass-or-dimensions exception?
Regarding adjoining properties, what characterises access to a Spanish autovía?
A give-way triangle painted on the carriageway has a vertex pointing towards the approaching vehicle. What does it require at the next…
Which drivers does this R-404 require to use the carriageway at whose entrance it is placed?
Can imprisonment be imposed for driving a motor vehicle or moped under the influence of alcohol even without a fatal accident?
If the width of the road does not allow the vehicle to be overtaken easily and without danger, what must the driver of a large vehicle do…
What colour is the give-way triangle normally painted on the carriageway?
Under the general legal definition, outside a learner vehicle with additional controls, who is considered the driver?
What must a driver do when performing a reversing manoeuvre?
When driving a car ordinarily on a motorway, may you reverse to reach an exit you have just passed?
On a Spanish autovía, a bus intends to join traffic from a signposted stop. Must other drivers facilitate the manoeuvre?
Besides the left indicator, which left-arm signal can warn of a U-turn to the left?
On a conventional road with no part reserved for them, a 3,000 kg MAM agricultural tractor, a bicycle and a moped use the passable,…
At a junction with no signs regulating priority, what priority do rail vehicles such as trams have?
At a marked pedestrian crossing, without express authorisation or an officer’s order, may you make a U-turn to travel in the opposite…
This sign prohibits passage to...
Under the rules in force from 1 October 2026, which bicycle riders must wear a helmet on an urban road under Article 118.2?
At the same ground speed and otherwise comparable conditions, which longitudinal wind increases relative air speed and tends to raise fuel…
On a two-way carriageway with two lanes in total, one for each direction, which lane should a car normally use?
As a general rule, once the vehicle has stopped, on which side should people enter or leave?
You intend to turn right. How must you signal your intention?
You are in a normal-direction lane adjoining a contraflow lane opened under Article 41. What lighting must you use?
This sign indicates danger due to the proximity of...
What action helps reduce risks arising from the road’s characteristics or condition?
Two vehicles cannot pass each other on a narrow gradient of at least 7%, with no priority signs or passing place the uphill vehicle could…
In the common knowledge test for the B licence, the expected time is:
Two vehicles meet at a narrowing with a gradient of at least 7%, no priority signs and insufficient room to pass simultaneously. Who has…
This sign prohibits entry to...
For a passenger car unrelated to the public transport service, which action is prohibited in a signposted bus-stop area?
A car and tram approach a junction with no priority signs. Why does the tram have priority?
Under the common circulation conditions in Annex III of Spain’s General Traffic Regulations, where must special vehicles subject to them…
When overtaking pedestrians in a car outside a built-up area on a road with one lane per direction, what minimum lateral clearance must you…
Is a lorry driver required to carry a reflective vest in their vehicle?
In geometry, when distinguishing direction from orientation of movement, what does an unoriented straight line represent?
What should a driver do if dazzled by the lights of a vehicle travelling in the opposite direction?
Does an R-409 sign allow a car to enter the path where it is placed?
A car driver leaves the vehicle on an interurban road and is going onto the carriageway or shoulder. Must the driver wear a reflective vest?
At a junction without priority signs between two paved roads, with no cycle lane or crossing or other exception, a lone cyclist approaches.…
How is the prohibition of passage indicated on a traffic light for trams?
Outside built-up areas, which of these situations permits overtaking on the right with sufficient space and utmost care?
Where is it prohibited to deposit goods during loading and unloading operations?
Should you critically assess advertising that presents risky driving behaviour?
For an adult driver transporting dangerous goods, what is the prescribed maximum breath-alcohol concentration?
From the perspective of alcohol, which breath-alcohol level is safest for driving?
By avoiding risk factors, can the probability of suffering a traffic accident be reduced?
According to the DGT’s consolidated data for Spain in 2024, on which type of roads were more road-crash deaths recorded?
What changes does alcohol cause in a driver's behaviour?
May bicycles use an autopista motorway?
Which activity can distract a driver even without holding the device?
If, on an interurban road, a two-wheeled moped wants to turn left and there is no lane adapted for this:
Why must you respect urban speed limits and slow further when conditions require it?
You drive a car and intend to turn left on a two-way carriageway without a separating line or a special layout or sign requiring a…
During ordinary motorcycle riding, outside regulated instruction or a test, may you use conventional audio earphones connected to your…
When you come across this traffic sign...
In a car more than one metre wide, may you carry a ladder projecting sideways through the windows?
What precaution should be taken in relation to slow-moving or large or heavy vehicles?
Must you give way when you come to a stop sign at a junction?
At a STOP with a transverse stop line, a parked vehicle obstructs your view of the crossing road from the line. May you skip the first stop…
Where is parking permitted in a stay-and-play zone signposted with S-28?
On an autopista or autovía, may you use your private car, which is not an authorised recovery vehicle, to tow another broken-down vehicle…
To reduce front-side collision risk on a motorcycle when another vehicle turns or joins, which precaution is appropriate?
On a motorcycle less than one metre wide, how far from the longitudinal centreline may the load extend on each side?
Can looking at your own appearance in the mirror instead of observing traffic increase risk while driving?
In the absence of traffic officers or auxiliary personnel, may roadworks personnel regulate vehicle passage using signs from the official…
As a general rule, what is the maximum authorised height of a vehicle, including its load?
Outside a built-up area, a carriageway has three lanes for the same direction. Which lanes may a lorry over 3,500 kg MAM normally use?
At the same speed and with other conditions unchanged, what can increase braking distance compared with a dry road with good grip?
What is the function of horizontal road studs?
Must an adaptable mixed-use vehicle carry a high-visibility reflective vest?
What must you do when a priority vehicle behind you is on an urgent call and announces its approach with its special warning signals?
A signal controlling your reserved bus lane shows an illuminated horizontal white bar. What does it indicate?
What must we check on the carriageway when carrying out the reversing manoeuvre?
As a general rule, it is prohibited to drive private cars with a blood alcohol level exceeding...
Another driver remains stopped after the light turns green. With no danger or emergency, may you sound the horn solely to tell them they…
If headlights are aimed too low, how can this affect obstacle detection at night?
In a passenger car, what is the required number pattern for main-beam headlights?
On a road with several lanes travelling in the same direction, do the indications of the signs apply to the full width of the carriageway?
What characterises vulnerable road users?
Unloading on a one-way urban road is unavoidable. On the left beside the premises, stopping is permitted and creates no dangerous…
In a pedestrian collision, with other conditions unchanged, what effect does higher impact speed have on the pedestrian?