Practice question

For an NJ commercial vehicle equipped with air brakes, what is the proper gear selection for a long downgrade with a loaded CMV?

  1. Use a higher gear than for climbing the same grade
  2. Use a lower gear than you would use to climb the same grade, selected BEFORE starting down
  3. Stay in neutral to coast
  4. Highest gear available

Answer: B — Use a lower gear than you would use to climb the same grade, selected BEFORE starting down

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Practice more: NJ CDL Air Brakes Test Practice Questions - New Jersey Commercial Driver License (CDL) Air Brakes Knowledge Test Exam →