Traction, Tyres and Brakes

What does the autonomous emergency braking (AEB) system do?

Question image: What does the autonomous emergency braking (AEB) system do?
  • It brakes automatically if a collision is likely and the driver does not react
  • B It increases speed to avoid being rear-ended
  • C It disables ABS in the wet
  • D It only works with the vehicle stopped

Why this is the correct answer

AEB uses a radar sensor to calculate the distance to the vehicle ahead. If it is too short it warns the driver, and if the driver does not react and a collision is likely, it applies emergency braking to avoid or mitigate the impact.

Ready to pass the DGT theory test?

Practise official-format questions in English, with explanations after every answer and full progress tracking.

Try a free practice test