Practice question

For a South Carolina CDL combination vehicle, when changing lanes in a combination vehicle, you should:

  1. Signal early, check mirrors longer, and allow extra time for the trailer to clear
  2. Make the move quickly to minimize blocking traffic
  3. Use the trailer hand valve to settle the load
  4. Wait for a 3-second gap, same as a car

Answer: A — Signal early, check mirrors longer, and allow extra time for the trailer to clear

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Practice more: SC CDL Combination Vehicles Practice Questions - South Carolina CDL Combination Vehicles Test Exam →