New Brunswick Knowledge Test Coach
Speed and stoppingQuestion 93 of 309

What gives your tires the grip needed to start, stop and steer?

  1. The weight of the engine
  2. Friction between the tires and the road
  3. The air pressure of the brakes
  4. The width of the lane
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Correct answer: Friction between the tires and the road

Only the tires touch the road. On a wet road, friction is much lower and stopping is harder.

Source: New Brunswick Driver's Handbook (Government of New Brunswick, 2022), 5.11 Highway, weather and visibility conditions, page 69

Practice speed and stopping

Questions last reviewed: 18 October 2026