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Class 4 Commercial Driver Practice · Question

What is the recommended minimum following distance for a Class 4 vehicle when driving in poor weather or on slippery roads?

Following distance should be increased to at least 4-6 seconds in poor weather (snow, rain, fog) to provide enough reaction time for the heavier commercial vehi

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Question: What is the recommended minimum following distance for a Class 4 vehicle when driving in poor weather or on slippery roads?

Answer options:

  • 2 seconds ✅ 4 to 6 seconds
  • 1 second for every 10km/h of speed
  • 3 car lengths

Correct answer: 4 to 6 seconds

Explanation: Following distance should be increased to at least 4-6 seconds in poor weather (snow, rain, fog) to provide enough reaction time for the heavier commercial vehicle.

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