Ontario G1 Knowledge Test — G1 Practice Question
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Accuracy —
Rules of the Road
A tire with a three-peak mountain and snowflake symbol is labelled as:
Show Answer & Explanation
Correct Answer: B. A tire built for severe snow service
The three-peak mountain/snowflake (3PMSF) symbol meets a tested snow-traction threshold. M+S-rated tires (mud and snow) without this symbol do not meet the winter standard. Insurance discounts require 3PMSF-marked tires.
Why the other answers are wrong
- A.Summer-onlySummer tires have no snow rating.
- C.All-seasonAll-season are M+S, not 3PMSF.
- D.Hybrid electricHybrid vehicles is a powertrain category, not a tire rating.
