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Ontario Class F Practice Test · Question

Under ideal conditions, what is the minimum recommended following distance for a Class 4 commercial vehicle behind another vehicle?

The 'Four Second Rule' is generally the minimum recommended following distance for commercial vehicles under ideal weather and road conditions to allow for a sa

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Question: Under ideal conditions, what is the minimum recommended following distance for a Class 4 commercial vehicle behind another vehicle?

Answer options:

  • 2 seconds
  • 3 seconds ✅ 4 seconds
  • 6 seconds

Correct answer: 4 seconds

Explanation: The 'Four Second Rule' is generally the minimum recommended following distance for commercial vehicles under ideal weather and road conditions to allow for a safe stopping distance.

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