Your Progress

  • 0 Correct
  • 0 Incorrect
  • 0 Skipped
Challenge Bank™
0 /5
0 votes
Click a star to add your vote
  • Back to all tests
  • Score Page
  • 0 Correct
  • 0 Incorrect
  • 0 Skipped
Restart
 
 
 
 
 
Advertisement
  • Based on 2025 ON commercial driver's licence manual
  • Updated for March 2025

ON Class B Commercial Licence Marathon

Embark on the ultimate challenge with our Class B Marathon practice test, specifically designed for Canadian commercial drivers. This comprehensive Marathon test includes every question from our Class B section, totaling over 547 questions. It's the perfect tool for those who have mastered our regular practice tests and are ready for a more rigorous examination. The unique feature of the Marathon is its relentless focus on your improvement: any question you answer incorrectly will reappear throughout the test until you get it right. This means the Marathon only concludes when you've correctly answered 100% of the questions, ensuring a thorough understanding of the material. Ideal for final preparations, this Marathon mimics the intensity and scope of the actual Class B exam, reinforcing your knowledge until perfection is achieved. Dive into this marathon session and drive towards success with unwavering confidence!
  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Triple-checked for accuracy
This test is a Premium member exclusive. You'll get

All 1,500+ exam-like questions specific to Ontario

Interactive learning with AI personal tutor

Get your money back if you don’t pass

What you need to know
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
You test results are ready

Pass the First Time - Guaranteed

You’re moments away from seeing your test results.
Before you view them, see how 14,300+ drivers used Premium to pass faster.

  • Real Exam-Like Questions

    Get 1,500+ exam-like questions seen on the real test.

  • 95% Premium Pass Rate vs. 49% on average

    Most Premium users pass on their first try.

  • Money-Back Guarantee

    We stand behind you until you pass.

Learn More & Guarantee My Pass Continue to my results
Opens in a new tab — your results are saved.