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Class 4 Commercial Driver Practice · Question

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

The '4-second rule' is the standard recommended following distance for commercial vehicles under ideal conditions to allow for a safe reaction time.

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

Answer options: ✅ 4 seconds

  • 2 seconds
  • 1 car length for every 10 km/h
  • 10 seconds

Correct answer: 4 seconds

Explanation: The '4-second rule' is the standard recommended following distance for commercial vehicles under ideal conditions to allow for a safe reaction time.

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