Practice question

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

Signal early, check mirrors longer, and allow extra time for the trailer to clear
Make the move quickly to minimize blocking traffic
Use the trailer hand valve to settle the load
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

The correct answer is shown above. Try the full quiz for additional practice.