Who administers the Ontario Class A commercial knowledge test?

The Ontario Ministry of Transportation creates the knowledge test, and DriveTest Centres administer it. DriveTest states that knowledge tests are proctored, multiple choice, marked on the spot, and available without an appointment at DriveTest Centres.

What should I study for the Ontario Class A knowledge test?

Ontario says the Official MTO Truck Handbook prepares applicants for the written knowledge test and covers truck-driver regulations and skills. Class A candidates should also understand air brake material from the Official Air Brake Handbook when seeking or using Z endorsement privileges.

How many questions are on the Ontario Class A knowledge test?

The official Ontario and DriveTest pages used for this metadata do not publish a fixed Class A-specific question count. DriveTest says knowledge tests are multiple choice and usually have two or three sections; this practice bank provides 100 original study questions.

What score do I need to pass?

DriveTest publishes a generic knowledge-test requirement of at least 80% total. The official pages used here do not publish a separate Class A-only pass mark.

Is the Class A knowledge test timed?

DriveTest says knowledge tests are not timed and applicants can take the time they need until the office closes. DriveTest also says knowledge tests typically take 20 to 30 minutes.

How much does the Ontario commercial knowledge test cost?

DriveTest lists the commercial knowledge test at $23.75. It also lists the commercial licence package for applicants under 65 at $122.75, including a knowledge test and road test.

Do I need MELT before the knowledge test?

Ontario requires mandatory entry-level training before attempting the full Class A road test, not before simply studying the handbook. New full Class A applicants should still plan for MELT because it is required before the road-test step.

When do I need the Z endorsement?

Ontario says a Z endorsement is required to drive a vehicle with an air brake or air-over-hydraulic brake system. Full Class A/Z is the path associated with full air brake systems on both the tractor and trailer.

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100+ Free Ontario Class A Commercial Practice Questions

Ontario Class A Commercial Driver Knowledge Test practice questions are available now; exam metadata is being verified.

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Question 1

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What does a solid line at the left of your lane indicate about passing?

Passing is allowed if the horn is sounded

Only trucks may pass

It is unsafe to pass from that lane position

Passing is mandatory

to track

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2026 Statistics

Key Facts: Ontario Class A Commercial Exam

Minimum age

Ontario.ca truck licence page

103.5

Minimum MELT hours

Ontario.ca mandatory training page

80%

Knowledge-test pass standard

DriveTest knowledge tests page

$23.75

Commercial knowledge test

DriveTest fees page

$122.75

Commercial package under 65

DriveTest fees page

4,600 kg

Class A towed-vehicle threshold

Ontario.ca truck licence page

4.15 m

Ontario maximum vehicle height

Official MTO Truck Handbook

55 psi

Low-air warning minimum activation

Official Air Brake Handbook

Ontario's full Class A/Z path covers tractor-trailers and other qualifying combinations, including trailers with full air brakes, while restricted Class A condition R does not allow full-size tractor-trailers, trailer air brakes or double trailers. New full Class A applicants must complete at least 103.5 hours of mandatory entry-level training before attempting the road test. DriveTest administers MTO-created, multiple-choice commercial knowledge tests at DriveTest Centres, publishes an 80% total pass standard, says knowledge tests are not timed, and lists the commercial knowledge test at $23.75 and commercial package at $122.75. Official public pages used here do not publish a fixed Class A question count, so this file does not invent one.

Sample Ontario Class A Commercial Practice Questions

Try these sample questions to test your Ontario Class A Commercial exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which Ontario licence best matches a driver who wants full tractor-trailer privileges with air brakes on both the tractor and trailer?

A.Class D with an RV restriction

B.Full Class A with a Z air brake endorsement

C.Restricted Class A condition R

D.Class G with an RV endorsement

Explanation: Ontario describes the full Class A truck licence with a Z endorsement as the licence that covers full air brake systems on both the tractor and trailer. It is the typical full tractor-trailer path for Class AZ drivers.

2What is the minimum age to apply for an Ontario Class A or Class D truck driver's licence?

A.16 years old

B.17 years old

C.18 years old

D.21 years old

Explanation: Ontario lists 18 years old as the minimum age for Class A and Class D truck licence applicants. Applicants must also meet licensing, vision, medical and testing requirements.

3A driver holds a restricted Class A licence, condition R. Which vehicle use is not allowed under that restriction?

A.Driving a car covered by Class G

B.Driving a heavy truck covered by Class D

C.Pulling a trailer equipped with air brakes

D.Operating a smaller horse trailer combination without trailer air brakes

Explanation: Ontario states that a restricted Class A holder cannot pull a trailer equipped with air brakes. Restricted Class A is intended for smaller truck-trailer combinations and does not provide full Class A privileges.

4Why does mandatory entry-level training matter for a new Ontario full Class A applicant?

A.It must be completed before attempting the Class A road test

B.It replaces the need for a vision test

C.It allows the applicant to skip the knowledge test

D.It is required only after the driver fails a road test

Explanation: Ontario requires mandatory entry-level training before a new full Class A applicant attempts the Class A road test. The training does not replace the separate knowledge, vision, medical and road-test requirements.

5Ontario's mandatory entry-level training for Class A applicants must include at least how much instruction?

A.24 hours

B.40 hours

C.80 hours

D.103.5 hours

Explanation: Ontario states that mandatory entry-level training includes at least 103.5 hours of instruction. It covers the entry-level knowledge and skills needed to operate a large truck safely on Ontario roads.

6To avoid a manual transmission restriction on a Class A road test, what vehicle transmission setup does Ontario require?

A.Any automatic transmission with paddle controls

B.A manual transmission with at least eight forward gears and a high-low range

C.Any vehicle with five forward gears and air brakes

D.A semi-automatic transmission with a clutch simulator

Explanation: Ontario says the Class A or AR road test must be completed in a vehicle with a manual transmission consisting of at least eight forward gears with a high-low range to avoid the manual transmission restriction. Otherwise, the driver is restricted to automatic, semi-automatic or automated-manual Class A/AR vehicles in Ontario.

7Which vehicle is specifically outside the privilege of an Ontario Class A licence?

A.A vehicle pulling double trailers when properly licensed

B.A heavy truck covered by Class D

C.A bus carrying passengers

D.A car or light truck covered by Class G

Explanation: Ontario states that a Class A licence does not allow the driver to drive a bus carrying passengers, a motorcycle or a moped. Bus passenger privileges require the appropriate bus class, not Class A alone.

8As of May 11, 2026, what additional documentation does Ontario say Class A to F applicants must provide when applying?

A.Proof of primary Ontario residence, legal presence in Canada and eligibility to work in Canada

B.Proof of owning the truck used for the road test

C.A letter from every previous employer

D.Proof that they have never held a passenger-car licence

Explanation: Ontario's truck licence page states that, as of May 11, 2026, Class A, B, C, D, E or F applicants need documents verifying Ontario as their primary place of residence, legal presence in Canada and eligibility to work in Canada. This is separate from the identity, medical and testing requirements.

9Who creates Ontario commercial knowledge tests administered at DriveTest Centres?

A.The Ontario Ministry of Transportation

B.Individual truck training schools

C.The vehicle owner supplying the road-test truck

D.The insurance company named on the vehicle

Explanation: DriveTest states that knowledge tests for driver licence applicants are created by the Ministry of Transportation. DriveTest Centres administer those tests on behalf of MTO.

10What score does DriveTest publish as the minimum total score to pass a knowledge test?

A.60 percent

B.70 percent

C.80 percent

D.90 percent

Explanation: DriveTest states that knowledge-test applicants must earn a total score of at least 80 percent to pass. That is the official generic DriveTest pass standard published for knowledge tests.

About the Ontario Class A Commercial Practice Questions

Verified exam format metadata for Ontario Class A Commercial Driver Knowledge Test is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.