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Quebec SAAQ Knowledge Test — Class 5 Practice Question

Knowledge test administered by SAAQ for the Class 5 licence. 30 questions, 75% to pass, 60-minute timer.

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Accuracy —

Risky Behaviours

A winter tire's minimum effective tread depth is approximately:

Show Answer & Explanation

Correct Answer: B. 4.8 mm (6/32 inch)

Winter tires need ~4.8 mm tread.

Why the other answers are wrong

A.2/32 inch (≈ 1.6 mm)That is the bare legal minimum and nowhere near enough for winter.
C.10 mmThat much depth is not required.
D.1 mmThat is not enough tread for any use.