Practice question

What happens during hydroplaning?

  1. Your tires grip the road more
  2. Your tires ride on the surface of the water like a water ski
  3. Your vehicle starts to spin out of control
  4. Your brakes become less effective

Answer: B — Your tires ride on the surface of the water like a water ski

During hydroplaning, your tires ride on the surface of the water like a water ski. This occurs when water on the roadway exceeds the tread design's ability to channel it away from the tire's contact patch. As speed increases or if water accumulation is significant, the tires can lose contact with the road and float on top of the water instead of maintaining grip, which leads to a loss of control over steering and braking. This phenomenon highlights the importance of driving cautiously in wet conditions and ensuring your tires have adequate tread to minimize the risk of hydroplaning. While other scenarios described, such as diminished braking effectiveness or spinning out of control, can occur as a result of hydroplaning, the primary event during hydroplaning itself is the tires losing traction and gliding over the water surface.

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