Question 8161
When it is raining or there are puddles on the roadway, why should you reduce your speed to one that allows the tires to properly displace the water and grip firm ground?
- To keep the brakes from getting wet.
- To avoid unnecessary wear on the tire tread.
- To reduce the risk of hydroplaning.
Show answer and explanation
Correct answer: To reduce the risk of hydroplaning.
If you drive too fast over water, the tires do not have time to push it out of the way, and the wheels float on it with no grip. This is hydroplaning, and the car stops responding to your controls. Driving at a speed that lets the tires displace the water and make contact with the asphalt reduces that risk. In the image, the car throws up a lot of water as it passes.