Use of Public Roads
Study all Use of Public Roads questions for the Spanish DGT theory test.
Reviewed on 9 Oct 2026
65 questions
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- What is the maximum blood alcohol level for drivers with more than 2 years of licence?
- At an unmarked intersection, who has right of way?
- The safe distance to the vehicle ahead must allow you to…
- Low-beam headlights must be used…
- The maximum blood alcohol level for a novice driver (less than 2 years of licence) is…
- Is it allowed to use a mobile phone while driving?
- When driving outside built-up areas, is daytime use of low-beams mandatory?
- Parking is forbidden…
- If a continuous transverse marking appears on the road, you must…
- In a roundabout, who has right of way?
- What must every road user do when approaching vulnerable users such as children, elderly, or people with disabilities?
- What must a driver do when refuelling?
- What must a driver do if they cause an obstacle on the road?
- Is it permitted to use a hand-held mobile phone while driving?
- Is it permitted to use headphones while driving?
- Are radar detectors permitted while driving?
- On which side of the road must you always drive?
- On a road with one lane in each direction, which vehicles must keep to the right?
- On a three-lane two-way road, when can the centre lane be used?
- On a three-lane two-way road, can the leftmost lane ever be used?
Questions people find hardest
Share of answers that were wrong, from learners who have answered each question at least 20 times.
- In a roundabout, in which direction must you circulate? 52% wrong
- Where must animals be moved on the road? 39% wrong
- Does a paved road have priority over an unpaved road? 26% wrong
- By how much must school transport vehicles reduce their speed on non-urban roads? 25% wrong
- When driving outside built-up areas, is daytime use of low-beams mandatory? 23% wrong
Frequently asked questions
- What is the maximum blood alcohol level for drivers with more than 2 years of licence?
- 0.5 g/l The maximum allowed is 0.5 g/l in blood (0.25 mg/l in breath) for general drivers.
- At an unmarked intersection, who has right of way?
- The vehicle on the right At unmarked junctions, priority goes to the vehicle approaching from the right.
- The safe distance to the vehicle ahead must allow you to…
- Stop without crashing in case of sudden braking The safe distance must be enough to stop without crashing if the car ahead brakes sharply.
- Low-beam headlights must be used…
- At night on sufficiently lit roads Low-beams are used at night on lit roads, in lit tunnels and whenever visibility conditions require.
- The maximum blood alcohol level for a novice driver (less than 2 years of licence) is…
- 0.3 g/l For novice drivers (under two years of licence), the maximum allowed is 0.3 g/l in blood (0.15 mg/l in breath).