Nova Scotia Driving Test Practice: Ace your driving test

How can you prevent hydroplaning on wet roads?

1. Accelerate quickly

2. Reduce speed and avoid sudden movements

3. Use cruise control

4. Change lanes frequently

The correct answer is: Reduce speed and avoid sudden movements

Reducing speed and avoiding sudden movements is the best strategy to prevent hydroplaning on wet roads. Hydroplaning occurs when a vehicle's tires lose contact with the road surface due to a layer of water, which can reduce traction and control. By reducing speed, you allow the tires to maintain better contact with the road and decrease the likelihood of riding on top of water. This is particularly important in heavy rain or on roads that are not well-drained. Additionally, making any sudden movements—such as sharp turns or abrupt changes in acceleration or braking—can destabilize the vehicle and increase the risk of hydroplaning. Smooth, gradual changes in speed and direction help maintain control of the vehicle and ensure that the tires stay engaged with the road surface. Other actions, such as accelerating quickly, using cruise control, or frequently changing lanes, can all increase the risk of hydroplaning. Swift acceleration can cause the tires to lose grip, especially on wet surfaces. Cruise control could maintain a consistent speed that may not allow for quick adjustments if hydroplaning begins. Constant lane changing may lead to sudden steering movements, which can also contribute to losing control.