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FREE Yukon Class 1 Licence Test 2025 | YT

Based on the 2025 YT CDL manual
Questions: 25
Mistakes allowed: 5
Passing score: 80%
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Yukon is a sparsely settled land of stunning landscapes and extreme winters. Class 1 driving in the territory can be quite hazardous in winter. Still, Class 1 drivers can find economic opportunities in several key economic sectors.

Mining continues to be Yukon’s major industry, especially gold, silver, copper, zinc, and lead. Class 1 drivers haul mining equipment to the mines. They haul ore from the mines on intermodal routes (ports or rail) to other provinces or the United States for processing. Also, ongoing construction and infrastructure development need Class 1 drivers to transport lumber, cement, and construction equipment to construction sites. The logistics sector also needs Class 1 drivers to resupply communities with fuel and stores with food and other goods.

To upgrade your Class 5 driver’s licence to a Class 1 commercial driver’s licence, you must meet a series of requirements, including providing adequate identification, passing a vision test, submitting a doctor’s medical report, and passing a Class 1 knowledge test on the theory of operating Class 1 vehicles. The official Yukon reference for operating commercial vehicles (Classes 1 through 4) is the handbook Driving Commercial Vehicles. Once you’ve passed the knowledge test, you can obtain a Class 1 learner’s permit, allowing you to operate Class 1 vehicles under supervision. Keep practicing until you feel ready to pass the official driving test for a Class 1 licence.

Practically all Class 1 vehicles have air brakes, so you must also obtain an air brake endorsement on your Class 1 licence. There are two ways you can get the air brake endorsement in Yukon. One way is to complete an approved Air Brake course. The other way is to pass a separate knowledge test on air brakes and then pass the air brake practical test.

Class 1 driving theory is challenging to master just by reading about it. We offer three Yukon Class 1 Knowledge practice tests to reinforce and enhance your knowledge of the subject through intensive repetition.

This is the first of those practice tests. It’s up to date as of April 2025 and based on the official handbook, Driving Commercial Vehicles. Our AI Assistant can help you with any question by supplying a hint or rephrasing the question. You can even ask your own questions about commercial driving. If you still miss the question, the AI Assistant will immediately show you the correct answer and an explanation.

Finally, please check out our other two Yukon Class 1 Knowledge practice tests and our nine Yukon Air Brake practice tests!

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Based on 2025 YT commercial driver's license manual
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List of questions (classic view)
  1. What must you do at a stop sign with a painted stop line?
  2. Over-braking with a trailer can sometimes lead to
  3. What does this sign tell you?
  4. When is a pre-trip inspection required?
  5. What gauges should you check after starting your vehicle?
  6. Which valves make up the tractor protection system?
  7. When coupling a tractor to a semitrailer,
  8. What does this sign mean?
  9. In an air brake system, what is brake lag time?
  10. What does this sign mean?
  11. Before driving down a grade (hill), you should
  12. When inspecting the brake chambers, you should check for which of the following?
  13. The supply line is also called
  14. When brakes become overheated, they also become
  15. Which belts should you check during your pre-trip inspection?
  16. What is the purpose of the National Safety Code?
  17. What is a normal reaction time for a driver?
  18. Most manufacturers of commercial vehicles recommend draining the moisture and oil from an air brake system on a ________ basis.
  19. What is the Gross Vehicle Weight Rating (GVWR)?
  20. Which of these is not a part of a drum brake?
  21. What is the purpose of the slider on a trailer?
  22. What is the most common cause of air loss in a trailer?
  23. What is brake lag time?
  24. What does this sign mean?
  25. Why is it important to know which parts of the air brake system exhaust air?
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