DriveTest Canada

Ontario truck

Ontario Class A knowledge test practice

60 questions written for the Ontario Class A commercial knowledge test, every one of them saying why the answer is the answer and naming the law or handbook it comes from.
60 questions20 on road signs40 on the rules
Practice runEverything for Ontario

Free to sit, with no account and nothing behind a paywall. Nothing you answer leaves your browser.

A tractor trailer taking a wide right turn from a two lane road into an industrial entrance, seen from the opposite curb under overcast light.
DriveTest, Commercial Vehicles licence requirementsverified 2026-08-28

Ways to work through it

The full test comes first because it is the one that tells you where you stand, and it is free here. A test with no sourced question count gets no full length run rather than an invented one.

A tractor trailer taking a wide right turn from a two lane road into an industrial entrance, seen from the opposite curb under overcast light.Start

Practice run

60 questions in this bank

The same kind of set, with the answer and the reason shown as soon as you choose. No clock, and it never stops early.
A tractor trailer taking a wide right turn from a two lane road into an industrial entrance, seen from the opposite curb under overcast light.View

One topic

60 questions in this bank

Work on a single subject until it stops catching you out.
A rural verge lined with three bare posts of different heights, every plate removed, a road running past them into open country.Start

Signs only

60 questions in this bank

Sign after sign, with the meaning explained each time you miss one.
A tractor trailer taking a wide right turn from a two lane road into an industrial entrance, seen from the opposite curb under overcast light.Start

Your missed questions

60 questions in this bank

The ones you got wrong before, kept in your own browser and nowhere else.

One subject at a time

The number beside each subject is how many questions we have written on it for Ontario truck. A subject appears here once there are enough of them to be worth sitting down with.

A rural verge lined with three bare posts of different heights, every plate removed, a road running past them into open country.

Road signs

20 questions

Start
Three vehicles spaced along a two lane highway, seen from behind and above so the gap between each of them is plain.

Speed and following distance

5 questions

Start
A residential street seen along the curb line, cars parked parallel to it with a fire hydrant on the verge and a painted section of curb.

Parking and stopping

5 questions

Start
A car stopped on a wide highway shoulder with the bonnet closed and a warning triangle set well back from it, nobody in frame.

Emergencies and breakdowns

6 questions

Start

What sits behind these runs

Every question here was written against the handbook and the legislation that Ontario Ministry of Transportation publishes, and every one carries the reason for its answer and the section it rests on.

Questions written

60

On road signs

20

On the rules

40

Subjects covered

4

All four figures are counted from the questions themselves when the site is built, rather than typed in by hand.

None of them is copied from another practice site, and none is generated from an unnamed source. If a question looks wrong to you, it may be wrong: say which one and what you think it should say, through the corrections route on the methodology page, and it gets checked against the source rather than argued about.

How a question becomes a published question

Other licence classes in Ontario

Each class is tested on its own terms, so each one has its own questions and its own page. A class appears here once there are questions written behind it.

A driver view of a suburban four way intersection with painted lane arrows and a crosswalk, low winter sun ahead and one vehicle waiting on the crossing arm.View

Car, G1 knowledge test

137 questions written here

Ontario G1 knowledge test
A motorcycle parked at the curb of a tree lined street in autumn, seen three quarters from the front with the road stretching away behind it.View

Motorcycle, M1 knowledge test

60 questions written here

Ontario M1 motorcycle knowledge test
A plain sedan pulled to a downtown curb beside a marked loading zone in winter, seen from across the street with no roof advertising fitted.View

Taxi and passenger transport, Class F knowledge test

45 questions written here

Ontario Class F knowledge test

Read rather than run

A run tells you what you do not know. The reading is where you go to fix it.

Ontario licence and tests

Stages, fees and the published format

Every number the licensing body publishes, with the record under each one.
View

The study lessons

With the Ontario note at the end of each one

The rules everyone is tested on, and the part that changes where you are.
Read
A rural verge lined with three bare posts of different heights, every plate removed, a road running past them into open country.View

The road sign set

Grouped by shape and colour

Every sign drawn here, with what to do when you meet it.

The record behind this test

The length, the pass mark and the fee for the Class A knowledge test are read off this record on the date beside it.