The one of the functions of the grooves in the tyre tread
- To facilitate water drainage between the road and the tire and to prevent engine wear.
- To facilitate water drainage between the road and the tire and to maintain tire air pressure,
- To facilitate water drainage between the road and the tire and to prevent tire wear.
- Correct answer: Is too allow water drainage from the tire on wet roads and greater friction and contact with the road..
Why this is the answer
The correct answer in the official bank: Is too allow water drainage from the tire on wet roads and greater friction and contact with the road..
The grooves in the tyre tread drain the water between the tyre and a wet road, so the tread stays in contact with the road and keeps its grip. This lowers the risk of skidding on a layer of water (aquaplaning). The grooves have nothing to do with air pressure or engine wear, and they do not prevent tyre wear. A worn tyre with shallow grooves drains less water and is more dangerous in the rain.