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Ontario · G1 Knowledge Test · G1 · DriveTest (MTO)

Ontario G1 Knowledge Test — G1 Practice Question

Knowledge test administered by DriveTest (MTO) for the G1 licence. 40 questions, 80% to pass.

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Accuracy —
Rules of the Road

You should replace tires when the tread depth reaches:

Show Answer & Explanation
Correct Answer: B. 1.5 mm

1.5 mm is the legal minimum. Below that, the tire loses the ability to shed water and cannot prevent hydroplaning. Winter tires are less effective with tread below 5 mm.

Why the other answers are wrong

  • A.0.5 mm0.5 mm is well below the legal minimum.
  • C.3 mm3 mm is above minimum but recommended for winter performance.
  • D.5 mm5 mm is winter-performance guideline, not the legal minimum.

More Rules of the Road Questions

Booster seats are required for children in Ontario who are: Ontario's stunt-driving law applies when a driver exceeds the posted speed limit by: Unless posted otherwise, the maximum speed limit on most 400-series highways in Ontario is: A rear-facing infant car seat must never be placed in a front passenger seat that has: You must stop and yield the whole road to pedestrians at:

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