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Quebec SAAQ Knowledge Test · Question

What does a sign with a truck on a downward slope mean?

This yellow warning sign alerts drivers to a steep descent ahead, advising heavy vehicle operators to downshift to a lower gear to safely control their speed an

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Question: What does a sign with a truck on a downward slope mean?

Answer options:

  • Truck weigh station ✅ Steep hill ahead — trucks should use lower gear
  • No trucks allowed
  • Truck route

Correct answer: Steep hill ahead — trucks should use lower gear

Explanation: This yellow warning sign alerts drivers to a steep descent ahead, advising heavy vehicle operators to downshift to a lower gear to safely control their speed and prevent brake failure. It does not indicate a weigh station, which features a scale symbol, nor does it represent a truck route or a regulatory truck prohibition. Under the SAAQ Highway Safety Code, yellow diamond signs warn of physical road hazards requiring driver adjustment. Correctly identifying these warning symbols is highly relevant for the road signs section of the Quebec Class 5 theory exam.

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