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Ontario Class B (Bus) Commercial Licence Practice Test 11

  • Based on 2026 ON commercial driver's licence manual
  • Updated for January 2026
  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Triple-checked for accuracy

Welcome to the final practice test in this series—Practice Test 11. This test centers around vehicle maintenance, an often overlooked but essential part of being a Class B driver in Ontario. The test comprises questions and requires an 80% pass score. Maintenance is not just about vehicle longevity but also about ensuring a safe journey for all.

Pass the first time with Premium
ON driver's license
  • Based on 2026 ON commercial driver's licence manual
  • Perfect for first-time and renewal commercial applicants, and those adding endorsements

Reviewed for legal and handbook accuracy

Steven Litvintchouk

M.S. (MIT), Chief Educational Researcher (ACES member)

Test design and learning experience oversight

Andrei Zakhareuski

Co-founder & CEO, 15+ years in driver education

Questions are created and maintained by the Tests.ca content team following our multi-layer editorial process and updated whenever the Ontario government changes its handbook or website information.

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