Alberta Class 7 Knowledge Test — Class 7 Practice Question
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Accuracy —
Rules of the Road
Replace tires when tread reaches:
Show Answer & Explanation
Correct Answer: B. 1.5 mm
Below, hydroplaning risk.
Why the other answers are wrong
- A.0.5 mmIllegal — see the explanation above for applicable rule.
- C.3 mmRecommended, not minimum.
- D.5 mmWinter guideline — see the explanation above for applicable rule.
