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

FREE NB Class 2 (Bus) Commercial Licence Practice Test

To apply for a Class 2 commercial driver’s licence in New Brunswick, you must be at least 18 years old, hold a full Class 5 or higher driver’s licence with a clean driving record, pass a vision test, undergo a medical exam, and submit a Medical Examination Report. (Try to submit the report soon because you can’t take the road test for a Class 2 licence until the report has been approved.)

After you submit the medical report, you must pass an in-person knowledge test on the theory of driving Class 2 vehicles. The passing score is 80%. Because most large Class 2 vehicles in New Brunswick have air brakes, you should also obtain an Air Brake endorsement. To do this, pass the official Air Brake knowledge test and the Practical Air Brake test. You must complete these steps and get your endorsement before you start driving Class 2 vehicles unsupervised. Mandatory Entry-Level Training (MELT) is not required for a Class 2 licence in New Brunswick.

Once you pass the Class 2 knowledge test, you may obtain a Class 2 learner’s licence, which will allow you to practice commercial driving under supervision.

Once you feel ready, you may take the road test for a commercial driver’s licence. You must take the road test in a Class 2 vehicle. If you’re also applying for an Air Brake Endorsement (which would be a good idea), the vehicle must be equipped with air brakes.

The Department of Public Safety does not appear to have published a general commercial driver’s licence manual, although it has published an Air Brake Manual. Part 9 of the New Brunswick Driver’s Handbook has just a little information about general commercial driving. If you would like more intensive knowledge training in Class 2 driving than this, you’ve come to the right place!

This New Brunswick Class 2 Knowledge practice test, the first of seven such tests we offer, covers the basics of operating Class 2 vehicles. If you get stuck on a question, ask our AI Assistant to give you a hint, rephrase the question, or answer your own questions about commercial driving. If you still miss the question, the AI Assistant will provide you with the correct answer and an explanation.

As the holder of a Class 2 licence, you’ll be allowed to drive a wide variety of vehicles: Classes 2, 3, 4, and 5. You may find employment operating transit buses, coach or charter buses, school buses, shuttle buses, seniors’ or accessible transportation, or tour minibuses.

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  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Triple-checked for accuracy

What you need to know

4.5 out of 5 • 2 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.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.
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List of questions (classic view)
  1. A bus driver should choose a safe driving speed, primarily based on
  2. The air pressure of a spare tire should equal
  3. When should the bus driver perform a safety check of the bus?
  4. You're approaching an intersection, and you notice that the roadway beyond the intersection is blocked with traffic. What should you do?
  5. When travelling slower than the other traffic, you should
  6. If you're approaching a level railway crossing that is not protected by gates or railway crossing signals, what should you do?
  7. A vehicle being used for the removal of snow from a roadway must be equipped with a
  8. What is the main purpose of maintaining the correct air pressure in the tires?
  9. Under Ontario law, when a school bus stops with its red signals flashing, other drivers must
  10. A broken centre line on a roadway means that you may
  11. Which of the following items of equipment is not required on a school bus?
  12. If a front tire blows out, what should you do first?
  13. If your right wheels drop off the roadway, what should you do to get back onto the roadway?
  14. Generally the safest drivers are those who
  15. If a bus becomes disabled on a roadway at night, flares or reflectors must be placed approximately _________ in front of and behind the vehicle.
  16. When driving in fog, you should use
  17. You're driving on a two-way street when you hear the siren of an approaching emergency vehicle. What must you do?
  18. What is the most important concern for a bus driver?
  19. If your vehicle lacks antilock brakes (ABS), how can you stop quickly on a wet or icy roadway?
  20. When travelling at over 60 km/h (40 mph), a bus driver must maintain a following distance of at least _________ behind the vehicle ahead, except when passing.
  21. A controlled railway crossing may have
  22. A light-rail transit (LRT) train may take up to ________ to stop in an emergency.
  23. A Slow-Moving Vehicle sign should be placed on any vehicle that travels no faster than
  24. A tire that is overinflated or underinflated can
  25. A tractor-trailer travelling at high speeds creates air turbulence in which of the following areas?
  26. A vehicle that is twice the weight of a car and is travelling at twice the speed of that car requires how much braking power to stop in the same distance?
  27. A white diamond marking in your lane indicates that
  28. A white X pavement marking in your lane means that
  29. What is a danger zone?
  30. Which dashboard gauge can help you decide when to upshift?
  31. Airbags are
  32. An engine governor is
  33. An octagonal (eight-sided) red sign is
  34. An oncoming vehicle at night has not dimmed its high-beam headlights. What should you do?
  35. Any defect or deficiency that you find on your bus must be
  36. At a railroad crossing, flashing red lights and ringing bells mean that
  37. At a stop sign, you must
  38. At an intersection with no traffic lights or traffic signs, you should
  39. At an intersection, the traffic light is red, but a police officer motions you to go through. What should you do?
  40. At what speed should you back up your vehicle?
  41. At which of the following engine speeds should you drive your vehicle?
  42. Before you drive your vehicle, you should
  43. Before you drive, you should
  44. Before you enter a curve, what gear should you select?
  45. Before you may turn left at an intersection, you must yield to
  46. Besides regular brake maintenance, who is responsible for ensuring that the brakes of a vehicle are working properly before the vehicle is driven?
  47. Cars A and B have arrived at this intersection at about the same time. Car A wants to turn left and Car B wants to go straight. Who has the right-of-way?
  48. Compounding the air brakes can
  49. Different-sized tires can
  50. Double-clutching is
  51. During a pre-hill inspection of a vehicle equipped with air brakes, you should do which of the following?
  52. During freezing conditions, you should exercise extreme caution when driving through which of the following?
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