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Quebec SAAQ Knowledge Test · Question

In addition to the period between a half-hour after sunset and a half-hour before sunrise, when are you required to use your vehicle's headlights and taillights?

You must use your vehicle's full lighting system (not just daytime running lights) whenever poor weather conditions like fog, rain, or snow reduce visibility to

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Question: In addition to the period between a half-hour after sunset and a half-hour before sunrise, when are you required to use your vehicle's headlights and taillights?

Answer options: ✅ At any time when visibility is less than 150 metres.

  • Only when it is actively precipitating (rain or snow).
  • Whenever you are driving on a highway with a speed limit over 90 km/h.
  • At all times to comply with daytime running light laws.

Correct answer: At any time when visibility is less than 150 metres.

Explanation: You must use your vehicle's full lighting system (not just daytime running lights) whenever poor weather conditions like fog, rain, or snow reduce visibility to under 150 metres.

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