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Ontario G1 Practice Test · Question

On a long downhill grade, the best way to control speed is to:

Shifting to a lower gear is the correct method because it utilizes engine braking to control downhill speed, preserving the service brakes. Under MTO guidelines

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Question: On a long downhill grade, the best way to control speed is to:

Answer options:

  • Ride the brakes ✅ Shift to a lower gear and let engine braking help
  • Coast in neutral
  • Use the parking brake

Correct answer: Shift to a lower gear and let engine braking help

Explanation: Shifting to a lower gear is the correct method because it utilizes engine braking to control downhill speed, preserving the service brakes. Under MTO guidelines, riding the brakes is incorrect because it causes friction, overheating, and brake fade, while coasting in neutral is illegal as you lose engine control. Using the parking brake is unsafe and can cause loss of vehicle control. The underlying Highway Traffic Act concept emphasizes maintaining full vehicle control at all times. On the G1 exam, expect questions testing your understanding of safe driving techniques on hills and under challenging road conditions.

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