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  • Based on 2025 NB commercial driver's licence manual
  • Updated for January 2025

New Brunswick Class 1 Licence Test 3

Preparing to drive a semi-trailer truck or a long combination vehicle in New Brunswick? You'll need a Class 1 commercial driver's licence. The transportation industry in NB is booming, so now is a great time: truck drivers are in high demand. As a Class 1 licenced commercial driver, you can work for a trucking company as an employee, or for yourself as an owner-operator. But in order to drive one of the largest vehicles on the road, you must first learn to drive carefully and safely. So before you can get your Class 1 licence, you must pass both a written and a practical test. The written test (also known as the New Brunswick truck driver's knowledge exam) has several multiple-choice questions. This 28-question Class 1 practice test is a great way to prepare as all questions are based on the official 2025 NB commercial driver's manual. As you answer the questions, we recommend checking each question's explanation to gain some further insight into the rule behind it. Good luck and drive safely!
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  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
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What you need to know
5 out of 5 • 1 votes
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
What to expect on the official exam
28

questions

22

correct answers to pass

79

passing score

List of questions (classic view)
  1. Which colour is the trailer supply line?
  2. Without an oversize load permit, the tallest your vehicle can be is
  3. What does this sign mean?
  4. Why are there two service tanks in a modern air brake system?
  5. When must a carrier check your driving record?
  6. What does this sign mean?
  7. When you couple your tractor to a trailer, which of the following is most important?
  8. What does this sign mean?
  9. As a commercial driver, you are expected to practice
  10. How can the trailer hand valve be used?
  11. What does this sign mean?
  12. The braking distance of a tractor-trailer is roughly ________ as the braking distance of a car.
  13. What are the four factors that affect a commercial vehicle's stopping distance?
  14. What does this sign mean?
  15. What is a "glad hand"?
  16. In your daily log, you must record which of the following?
  17. What does this sign mean?
  18. What does this sign mean?
  19. You're driving on a curve to the left. How can you ensure that your trailer's wheels stay in your lane?
  20. What is the wheelbase of a vehicle?
  21. What is a commercial vehicle's danger zone?
  22. To inspect an air brake system, you should wear
  23. While driving your truck, you see an open truck inspection station. What should you do?
  24. What does this sign mean?
  25. Hours of service regulations let a driver choose one of two cycles
  26. What function does the alcohol evaporator perform?
  27. If your vehicle is equipped with antilock brakes (ABS), how should you brake in an emergency?
  28. When must you chock the wheels of your stopped vehicle?