Ontario G Road Test Training · Question
A sign with a truck on a downward grade warns of:
This yellow warning sign depicts a truck on a slope to symbolize a steep downgrade ahead, advising drivers—especially those in heavy vehicles—to shift to a lowe
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Question: A sign with a truck on a downward grade warns of:
Answer options:
- Truck stop ✅ Steep downgrade — use lower gear
- No trucks
- Runaway lane
Correct answer: Steep downgrade — use lower gear
Explanation: This yellow warning sign depicts a truck on a slope to symbolize a steep downgrade ahead, advising drivers—especially those in heavy vehicles—to shift to a lower gear to safely control their speed without riding and overheating the brakes. It does not indicate a truck stop, which uses blue service signs, nor a "no trucks" restriction, which requires a regulatory red circle with a slash. Runaway lanes are indicated by separate, distinct signs further down steep routes. Ontario Ministry of Transportation regulations designate this symbol specifically for steep hills. Recognizing road warning signs and their practical safety implications is a highly tested concept on the Ontario G1 exam.
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Question explanations
- What does an inverted (upside-down) red and white triangle mean?
- A yellow diamond-shaped sign is used to indicate what?
- What does a circular sign with a red border and diagonal line through a black 'P' indicate?
- You are driving in Edmonton and see a flashing amber light on a school bus. What action must you take?
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