Free Ontario AZ Practice Test Part 4
Preparing for your Free Ontario AZ Practice Test? Whether you’re aiming to drive a truck or other commercial vehicle, our free, up-to-date Free Ontario Class A Licence Test are designed to help you pass with confidence. Based on the official MTO Commercial Driver’s Handbook, these tests cover everything you need to know to safely and legally operate a commercial vehicle in Ontario.
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What to Expect on the Official Ontario Commercial Driver’s Licence Test
Note: The number of questions may vary depending on your licence class (A, D, B, C, etc.).
Road Signs & Traffic Signals
40
Rules of the Road & Regulations
32
Vehicle Inspections & Safety Procedures
80%
Air Brake Knowledge
30 min
Passing Score
80%
FAQs About the Ontario Commercial Driver’s Licence Test
Ontario offers several classes: Class A (tractor-trailer), Class D (straight truck), Class B (school bus), Class C (transit bus), Class E & F (smaller buses), and Z (air brake endorsement).
You must meet eligibility requirements, pass a medical exam, write a knowledge test, and complete any mandatory training (like MELT for Class A). After that, you book and pass a road test.
MELT (Mandatory Entry-Level Training) is required for all new Class A licence applicants. It includes a standardized curriculum covering in-class, in-yard, and on-road instruction.
The test includes road signs, traffic laws, vehicle inspections, safe driving practices, and air brake systems (if applicable).
There are typically 30 to 50 multiple-choice questions, depending on the licence class.
You must score at least 80% to pass. That usually means getting 24 to 40 questions correct, depending on the test length.
❌ No. You must take the test in person at a DriveTest Centre.
✅ Yes. A valid medical report is required for Classes A, B, C, D, E, and F before testing or renewing your licence.
A commercial licence is typically valid for 5 years, subject to periodic medical checks and renewals.
If you’re driving a vehicle equipped with air brakes, you must complete an air brake training course and pass both the Z knowledge test and practical brake inspection.
Free Ontario Commercial Test Practice – Truck, Bus & Air Brake (Class A, D, B, C, Z)
Getting your Ontario commercial driver’s licence is your gateway to a new career on the road—whether you’re hauling freight across provinces, driving a city bus, or working in a skilled trade. But before you can operate a commercial vehicle, you must pass the Ontario commercial knowledge test, and preparation is the key to your success.
Our free Ontario commercial practice tests are designed to help you pass on your first try. Every question is 100% based on the official MTO Commercial Driver’s Handbook and reflects the real test format used at DriveTest Centres. With realistic multiple-choice questions, no registration required, and unlimited access, you’ll build the knowledge and confidence to drive professionally and safely.
Whether you’re a new driver upgrading your licence or preparing for your Z (air brake) endorsement, these Ontario commercial practice tests are your go-to tool for success.
🚛 Ready to Start Your Career in Commercial Driving?
Start practicing today and take your first confident step toward earning your Ontario commercial licence. With the right preparation tools, you’ll be ready to pass the knowledge test and start your driving career with skill, safety, and confidence.
👉 Take Our Free Ontario Commercial Practice Test
📘 Download the Official Ontario Commercial Driver’s Handbook
📺 Watch Our Commercial Licence Prep Videos on YouTube: @usadmvpermitpracticetest
🌐 Visit: usadmvpermitpracticetest.com
Why Get a Commercial Driver's Licence in Ontario?
Ontario’s transportation industry is booming, with demand for qualified commercial drivers at an all-time high. Whether you’re planning to drive a tractor-trailer (Class A), straight truck (Class D), school bus (Class B or E), or a transit bus (Class C or F), you’ll need a valid Ontario commercial driver’s licence.
A commercial licence opens doors to: Ontario Truck Driver Licence Practice Test
Well-paying job opportunities
Long-haul or local driving careers
Advancement into logistics, training, or fleet management
Benefits and job security in a high-demand industry
Ontario Commercial Licence Classes
Before applying, it’s important to know which licence class suits your goals:
| Class | Vehicle Type |
|---|---|
| Class A | Tractor-trailers, combination vehicles |
| Class D | Straight trucks (over 11,000 kg) |
| Class B | School buses (over 24 passengers) |
| Class C | Transit and intercity buses |
| Class E | Small school buses (under 24 passengers) |
| Class F | Ambulances, vans, and small buses |
| Class Z | Air brake endorsement (needed with most commercial classes) |
About the Ontario Commercial Knowledge Test
Before you can get behind the wheel, you must pass the written knowledge test. The test is based on the Ontario Commercial Driver’s Handbook and includes questions on:Ontario Truck Driver Licence Practice Test
Commercial driving laws and responsibilities
Vehicle inspection and maintenance
Road signs and traffic signals
Safety protocols and defensive driving
Air brake systems (for Class Z)
Test Format:
Multiple-choice
Randomized questions
Minimum 80% passing score
Practice Before You Write – Free Ontario Commercial Licence Practice Test
Prepare confidently with our free practice test based on the official MTO Commercial Driver’s Handbook. Our questions are structured just like the real test, giving you:
Realistic test experience
Detailed explanations for every answer
Topics covering all major knowledge areas
Unlimited retakes to boost your score
👉 Start practicing now to improve your chances of passing on the first try!
What to Study for the Ontario Commercial Driver’s Test
Use the MTO Commercial Driver’s Handbook as your primary study material. Focus on the following chapters: Ontario Truck Driver Licence Practice Test
Vehicle inspections
Safe operating procedures
Professional driver responsibilities
Regulatory compliance and hours of service
Air brake system (if required)
Road signs and markings
Tip: Pair the handbook with our online practice tests for best results.
Eligibility Requirements for Ontario Commercial Licence
To apply for a commercial driver’s licence in Ontario, you must:
Be at least 18 years old
Hold a valid Ontario Class G or higher licence
Pass a vision test
Pass the written knowledge test
Pass a medical exam (Classes A, B, C, D, E, and F)
Complete entry-level training for Class A (MELT program)
Pass the road test for your specific licence class
Air Brake (Z) Endorsement
Most commercial vehicles in Ontario require a Class Z air brake endorsement. You must:
Complete an approved air brake training course
Pass a knowledge test
Pass a practical air brake inspection test
👉 We also offer a dedicated Air Brake Practice Test to help you ace this section.
Booking Your Test
To book your commercial knowledge test, visit:
DriveTest Ontario
You can schedule:
Written test (available on a walk-in basis at most centres)
Road test (booked in advance)
Air brake endorsement test (if applicable)
Make sure to bring:
Valid ID
Proof of training (Class A only)
Medical form (if required)
Applicable fees
Entry-Level Training for Class A (MELT)
If you’re applying for a Class A licence, you must complete the Mandatory Entry-Level Training (MELT) program before booking a road test. This course includes classroom, in-yard, and on-road instruction from an approved training provider.
Learn more on the MTO MELT Program
How to Pass the Ontario Commercial Licence Test – Tips & Tricks
Study the Handbook Thoroughly: Don’t skip diagrams, definitions, or safety checklists.
Use Practice Tests Often: Repetition improves memory and test-taking confidence.
Focus on Air Brake Rules: These are frequently misunderstood.
Practice Inspections: Understand pre-trip inspection steps clearly.
Ask Questions: Join forums or speak to other drivers to clarify confusing topics.
Get Started – Free Ontario Commercial Practice Test
✅ Based on the official MTO Handbook
✅ Unlimited attempts
✅ Instant feedback and answers
✅ Available for all licence classes (A, D, B, C, Z, and more)