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FREE Ontario G1 Diagnostic Practice Test
- Based on official Ontario 2025 Driver's manual
- Updated for August 2025
- Perfect for learner’s permit and full adult driver’s licence
- Triple-checked for accuracy
To obtain a Class G1 learner’s licence in Ontario, you must be at least 16 years old, pass a vision screening and the Class G1 Knowledge Exam, and present valid government-issued identification. Our Free Ontario G1 Diagnostic Practice Test covers 15 of the most commonly missed questions in our multi-test series of learner’s licence preparation materials. Failure to pass the official knowledge exam creates delays and additional fees. Our practice tests ensure you pass on your first attempt!
Topics you must learn for the knowledge exam include Ontario’s licence classifications and graduated licensing restrictions, road signs, enforced speed limits and penalties, and mandatory seatbelt and child safety seat usage. You’ll also need to be familiar with Ontario’s zero-tolerance alcohol and impaired driving laws and its demerit system for traffic violations. Additionally, there are rules for driving under adverse conditions and compliance expectations during enforcement stops that may be tested.
The knowledge exam may also cover speed limits, school zones and construction areas. You’ll need to understand protocol during traffic stops when drivers are legally required to present their licence, vehicle registration, and insurance immediately. You’ll also need to be familiar with Ontario’s Graduated Licensing System (GLS), which gradually adds driving privileges over a 20-month period (24-month minimum if no driving course is taken). It includes three stages: Class G1 (Level I: Learner’s Licence), Class G2 (Level II: Probationary Licence), and the Class G full licence. The GLS applies to all new drivers, limits your driving to between 5 a.m. and midnight, and prohibits your driving on 400-series highways with speed limits exceeding 80 km/h. You must have a licensed driver with at least four years of driving experience in the vehicle with you at all times.
That’s just the tip of the iceberg. Don’t worry. Our tests help you pass on your first attempt. The Ontario Knowledge Exam comprises two sections of 20 multiple-choice questions. You must take the exam at a registered drive test center, and you must correctly answer at least 16 out of 20 (80%) questions on each of the two sections to pass.
Our Free G1 Diagnostic Practice Test is based on the most recent version of the Ontario Driver’s Handbook and contains multiple-choice questions. It is one of five available practice tests as well as five additional Ontario-specific resources, some of which have added features for our Premium members. Check out our other Ontario Knowledge Exam Practice Tests!
- Based on official Ontario 2025 Driver's manual
- Perfect for learner’s permit and full adult driver’s licence
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.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.
What to expect on the actual ON exam
20+20
questions
16+16
correct answers to pass
80%
passing score
More resources
Are you in another province?
- British Columbia: Test 1 / Test 2
- Manitoba: Test 1 / Test 2
- New Brunswick: Test 1 / Test 2
- Newfoundland and Labrador: Test 1 / Test 2
- Northwest Territories: Test 1 / Test 2
- Nova Scotia: Test 1 / Test 2
- Nunavut: Test 1 / Test 2
- Ontario: Test 1 / Test 2
- Prince Edward Island: Test 1 / Test 2
- Quebec: Test 1 / Test 2
- Saskatchewan: Test 1 / Test 2
- Yukon: Test 1 / Test 2
Our commitment to accuracy and quality in our practice tests
Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.
Written by Andrei Zakhareuski Updated over a week ago
At Tests.ca, we understand the importance of reliable and accurate practice tests to help you prepare for your driver's knowledge exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.
Here's an inside look at how we maintain the highest quality in our practice tests.
Content Creation and Verification Process
- Alignment with Official Driving Handbooks:
Every question we develop is based on the most recent version of each province's official driving manual. Our team regularly monitors each province's official website for the latest updates to ensure our practice tests are always aligned with the most current information. - Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation. - Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy. - Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors. - User Feedback Mechanism:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly. - Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the provincial government manuals. Additionally, we update the free electronic copy of the province's driver's license manuals on our site, typically within a few days after the government publishes them.
Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your driver's knowledge exam.
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