Driver Assistance Systems (ADAS) — DGT theory test questions

Driver Assistance Systems (ADAS) 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.

30 questions

• What are Advanced Driver Assistance Systems (ADAS)?
• What percentage of road accidents is attributed to human error, the problem ADAS aim to reduce?
• What characterises a passive ADAS system?
• What does an active ADAS system do, unlike a passive one?
• What function does the Automatic Emergency Braking (AEB) system perform?
• What is the typical sequence of action of the Automatic Emergency Braking (AEB) system?
• What does Adaptive Cruise Control (ACC) do?
• What type of sensors does Adaptive Cruise Control (ACC) mainly use to measure the distance to the vehicle ahead?
• What does the Traffic Sign Recognition (TSR) system do?
• What is Blind Spot Detection (BSD) for?
• If Blind Spot Detection (BSD) flags a vehicle in its zone and you signal towards that side, what normally happens?
• In which situation is Rear Cross Traffic Alert (RCTA) especially useful?
• What does the Lane Departure Warning (LDW) system do?
• How does Lane Keeping Assist (LKA) differ from a simple Lane Departure Warning (LDW)?
• When using parking assist, what obligation does the driver retain?
• What does Hill Start Assist (HSA) prevent?
• How does the driver drowsiness detection system identify fatigue?
• If the drowsiness detection system triggers an alert during a journey, what is the most appropriate action?
• What technology does Night Vision Assist use to detect pedestrians or animals beyond the reach of the headlights?
• Which of the following is a recognised benefit of ADAS systems for vulnerable road users?
• How can ADAS systems contribute to fuel efficiency?
• Which factor can impair the correct operation of ADAS cameras and sensors?
• What risk does over-reliance on ADAS systems carry?
• For ADAS systems to work correctly, what care do their cameras and sensors require?
• Since July 2022, what does the European Union require regarding certain ADAS systems in new vehicles?
• Which of the following systems is mandatory in new EU vehicles since July 2022?
• In the practical test for the Class B licence in Spain, what is permitted regarding vehicles with ADAS systems?
• What do vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication technologies enable in the evolution of ADAS?
• As a best practice when using ADAS systems, what attitude should the driver always maintain?
• What is the core message about the role of ADAS systems in driving?