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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 must switch from high beams to low beams when an oncoming vehicle is within what distance?

Show Answer & Explanation
Correct Answer: C. 150 metres

Switch to low beams within 150 metres of an oncoming vehicle to avoid blinding the other driver. High beams blind oncoming drivers for several seconds — enough to cause a collision. Courtesy dimming is both legal and practical.

Why the other answers are wrong

  • A.50 metres50 metres is far too close — the oncoming driver is already blinded at that range.
  • B.100 metres100 metres is closer than required; the Ontario standard is 150 metres.
  • D.300 metres300 metres is more distance than the law specifies; 150 m is the legal minimum.

More Rules of the Road Questions

In good conditions, the minimum safe following distance behind the vehicle ahead is about: When passing a cyclist on an Ontario road, you must leave a minimum clearance of: When approaching an oncoming vehicle at night, you must switch from high beams to low beams at a distance of at least: At a four-way stop, if two vehicles arrive and stop at exactly the same time: When an emergency vehicle with siren and flashing lights approaches from any direction, you must:

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