Use of Public Roads — DGT theory test questions

Use of Public Roads is one of the topics tested on the official Spanish DGT theory exam. Work through the questions below in English — each one shows the correct answer and a clear explanation of the rule behind it — then take a full topic test to check you are ready.

65 questions

• 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?
• On multi-lane roads outside urban areas, where must vehicles over 3,500 kg MAM generally drive?
• In a roundabout, in which direction must you circulate?
• On a road with more than two lanes in the same direction, which vehicles are banned from the third lane or beyond?
• Who can use an HOV (High Occupancy Vehicle) lane?
• Are trailers allowed in an HOV lane?
• What is required when driving in a reversible lane?
• What is the speed limit on an additional lane or an opposite-direction lane?
• What lighting is required when driving in an additional lane?
• Which of the following must use the shoulder?
• Which of the following must also use the shoulder?
• When must cyclists ride in single file on the shoulder?
• What is the maximum time allowed when overtaking another vehicle on the shoulder?
• What is the maximum distance allowed when overtaking on the shoulder?
• What is the minimum distance heavy vehicles must maintain from the vehicle ahead on interurban roads?
• What is the minimum safety distance in a tunnel for general vehicles?
• What is the minimum distance in a tunnel for vehicles over 3,500 kg MAM?
• Where must pedestrians walk if there is no sidewalk in an interurban area?
• Where must pedestrians walk if there is no sidewalk in an urban area?
• What must pedestrians using skates or scooters do on the road?
• Are pedestrians allowed on motorways and expressways?
• What must pedestrians carry at night on interurban roads?
• Who must lead animals on public roads?
• Where must animals be moved on the road?
• What lights must animals carry in poor lighting conditions?
• What is the minimum speed on motorways and expressways?
• What is the minimum speed on conventional roads?
• What is the maximum speed in urban areas?
• What is the minimum speed in urban areas?
• By how much must vehicles transporting hazardous goods reduce their speed?
• By how much must school transport vehicles reduce their speed on non-urban roads?
• What speed reduction applies to light quadricycles and mopeds?
• Is it always legal to drive at the speed limit regardless of conditions?
• Must a driver reduce speed when approaching a level crossing?
• Must a driver reduce speed at a roundabout?
• Must a driver reduce speed near a school?
• At an unmarked intersection with no signage, who has priority?
• Does a paved road have priority over an unpaved road?
• Who has priority at a roundabout?
• Do rail vehicles such as trains and trams always have priority?
• On a narrow road where both vehicles enter at the same time, who has priority?
• On a steep slope of more than 7%, which vehicle has priority?
• When must a driver yield to cyclists?
• When must a driver yield to pedestrians?
• What makes an emergency vehicle have absolute priority?
• What must other road users do when an emergency vehicle with siren and lights approaches?