Hydroplaning occurs when tires ride on what?

• A. Water
• B. Dust
• C. Oil
• D. Snow

Answer: (A)

Hydroplaning happens when a layer of water builds between the tire and the road, so the tire rides on top of the water rather than gripping the pavement. When a vehicle reaches certain speeds or the water is too deep for the tire’s tread to push out, a thin film forms that lifts the tire off the road, causing loss of traction and making steering and braking difficult. This is specifically about water creating that slippery film, not dust, oil, or snow. Dust doesn’t create a continuous film to lift the tire, oil can make surfaces slick but isn’t the same hydroplaning effect, and snow affects traction in other ways.