After a heavy downpour, why should a driver keep a greater distance from the vehicle in front?
- Because tyre grip improves when wet.
- Correct answerBecause the required stopping distances is greater.
- Because wheels rotate at a greater speed after rain.
- Because wheels rotate at a slower speed after rain.
Explanation
On a wet road surface, your tyres do not grip the road surface as well as in dry conditions and your required stopping distance is increased. Because of that you should slow down during or after rain and keep a greater distance from the vehicle in front.
Read in Chinese
暴雨过后，为什么司机应该与前车保持更大距离？
- 因为轮胎在潮湿时抓地力提高。
- 因为所需的制动距离更长。
- 因为轮子在雨后以更高的速度旋转。
- 因为下雨后车轮旋转速度较慢。
在湿滑的路面上，轮胎的抓地力不如在干燥条件下好，因此需要更长的制动距离。因此，在下雨时或雨后应减速，并与前车保持更大的距离。
