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FREE NS General Knowledge Test 1 2025

Based on the 2025 NS CDL manual
Questions: 25
Mistakes allowed: 5
Passing score: 80%
Ensuring the accuracy and quality of our practice tests is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

Welcome to the first of our Nova Scotia General Knowledge Practice Tests, designed to help you master commercial driving theory efficiently. Use this intuitive tool to increase your knowledge and confidence before exam day. You get nonstop access and unlimited attempts to train as often as you like, but we recommend creating and consistently following a daily study routine. All 25 questions are based on the official Nova Scotia Trucking Rules & Regulations Guidebook. They have multiple answer choices, but only one is correct. For your convenience, we have omitted any timer from the practice test so you can learn at your own pace.

Since beginners are more likely to make mistakes, you shouldn’t let a failing score disappoint you. Instead, you can learn from your mistakes and gradually improve your performance. Pay attention to the detailed explanation for each question, as it helps you understand the reasoning behind each correct answer. We provide immediate feedback for each question. Note it down in a notebook or notebook app and revisit the material during future practice sessions. Our Challenge Bank™ stores all the questions you get wrong automatically. You can visit this section to identify areas that need improvement and improve your knowledge. Questions in the Challenge Bank™ will remain there until you answer them correctly.

Students with auditory memory greatly benefit from the voice-over feature. Once activated, this function employs an artificial voice to read the questions and answer choices aloud. Use it to increase your focus and eliminate distractions from your environment. Several other features can be found in the “Test settings” menu on the left side of the page.

Achieving a passing score on the Nova Scotia commercial vehicle knowledge test should not be your only goal. We’ll help you ace the official exam, but you must dedicate the time and effort to becoming a safe and responsible commercial driver. Start your preparation today. Set a schedule, stick with it, and use our tools to guide your progress. With consistent effort, you’ll achieve your professional goals in no time.

Based on 2025 NS commercial driver's license manual
Instant feedback
List of questions (classic view)
  1. What should you do to enter a freeway?
  2. You're approaching a red traffic signal light, but a police officer motions you to go through. What should you do?
  3. You're driving a tractor-trailer. While rounding a right curve on a two-way road, you should
  4. When can a police officer inspect your vehicle?
  5. In Ontario, you must not park or leave your vehicle on a rural roadway unless there is a clear view for at least ________ in both directions.
  6. When should you perform a circle check of your commercial motor vehicle?
  7. If you're approaching a railway crossing at which a signal device or flagperson is warning of an approaching train, you must
  8. After dark, an amber or red light must be visible for ____ from the rear of the load of the commercial vehicle.
  9. Under all conditions, you should drive at a speed that will allow you to
  10. Who is responsible for the safe operation of a motor vehicle?
  11. A licensed driver who wants to learn how to drive a tractor-trailer must
  12. When uncoupling a combination vehicle (such as a tractor-trailer), which of the following is the next step after you've lowered the landing gear?
  13. Any load which projects from the rear of a vehicle by at least 1 metre (about 3 feet) must be marked by
  14. You're driving a vehicle equipped with air brakes. You notice that when you brake, the service brakes aren't holding even though air pressure is satisfactory. What should you do?
  15. To perform the pre-trip inspection of the air brakes, which of the following should you do first?
  16. To enter a highway from a private road or driveway, you should
  17. What is the gross weight of a vehicle?
  18. Ontario law does NOT require ________ on a motor vehicle.
  19. In Ontario, the maximum speed limit on a rural highway is ________ except where otherwise posted.
  20. When you back your tractor to couple a semi-trailer, the fifth wheel opening must be in direct line with
  21. When travelling at over 60 km/h (40 mph), a commercial truck driver must maintain a following distance of at least _________ behind the vehicle ahead, except when passing.
  22. The driver must carry a daily log with entries for the past
  23. Drivers are exempted from keeping a daily log if they drive within a radius of
  24. The driver's log book must contain which of the following entries?
  25. Electronic recording of log entries is
  26. The pyrometer is a dashboard gauge that measures
  27. Which of these produces electricity to keep the vehicle's batteries charged?
  28. The difference in electrical charge potential between two points in a circuit acts as a kind of pressure to make an electrical current flow. This pressure or potential difference is usually measured in
  29. You may not drive a tractor-trailer if the semi-trailer's length exceeds _______ unless you obtain an oversize permit.
  30. What is the maximum permitted width of a semi-trailer?
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