Ontario G1 Knowledge Test — G1 Practice Question
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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.
