Quebec Knowledge Test Coach
Safe driving techniquesQuestion 287 of 318

Why must you be careful at the entrance and the exit of a tunnel?

  1. The road is always icy at the ends of a tunnel.
  2. Your headlights go off by themselves in a tunnel.
  3. Your eyes need time to adjust to the light.
  4. The speed limit changes with no sign.
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Correct answer: Your eyes need time to adjust to the light.

When you enter or leave a tunnel, the light changes fast. Your eyes need some time to adjust. In a tunnel, use low beams and keep a safe distance.

Source: Driving a Passenger Vehicle (SAAQ, 2022), Chapter 4, Sharing the Road > In a Tunnel, page 143

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Questions last reviewed: 18 October 2026