The risk of hydroplaning can can be reduced by driving:
- Through shallow water.
- More quickly.
- More slowly. ✓
- Through deep water.
Answer: C. More slowly.
Drive more slowly: reducing your speed lowers the chance that your tires ride up on a thin film of water.
Why this is the answer
The handbook's rain section says to slow down when rain begins and when roads are slick. It explains hydroplaning as the vehicle sliding on a thin layer of water between the tires and the road, and it lists speeding as something that raises that risk. Because speed is one of the factors the handbook ties to hydroplaning, driving more slowly is the choice that matches its guidance. The same section also warns against trying to drive through flooded water, so choosing a water depth to drive through is not the recommended approach.
Why the other answers are wrong
- A. Through shallow water. — Driving through shallow water is not presented as a way to reduce hydroplaning; the handbook instead warns against driving through flooded water.
- B. More quickly. — Driving more quickly is the opposite of the handbook's advice, since it names speeding as a factor that increases the risk of hydroplaning.
- D. Through deep water. — Driving through deep water is specifically discouraged, because the handbook says not to attempt a flooded roadway.
Remember it
Think of hydroplaning as your tires losing touch with the road; backing off the speed helps keep that contact.