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Prince Edward Island · Knowledge Test · Instruction Permit · Highway Safety Division

Prince Edward Island Knowledge Test — Instruction Permit Practice Question

Knowledge test administered by Highway Safety Division for the Instruction Permit licence. 40 questions, 80% to pass.

Province progress 0 / 397
Accuracy —
Rules of the Road

Minimum acceptable tire tread depth in PEI is approximately:

Show Answer & Explanation
Correct Answer: B. 1.5 mm (tire wear indicator shows flush with tread)

Below 1.5 mm, hydroplaning and wet-traction dramatically degrade; replacement is safety-critical.

Why the other answers are wrong

  • A.Bald (0 mm)Bald tires have virtually no wet traction and are illegal.
  • C.5 mm5 mm is recommended replacement point in winter; the legal minimum is lower.
  • D.10 mm10 mm is a new-tire value; legal minimum is far less.