Practice question

Which federal rule is most directly tied to passing the North Carolina CDL Combination Vehicles knowledge test?

  1. At least 80 percent correct on each knowledge test
  2. A fixed 30-minute time limit for every endorsement
  3. A requirement to take the doubles/triples skills test
  4. A seven-day CLP holding period

Answer: A — At least 80 percent correct on each knowledge test

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