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Ontario Class A Commercial Practice Questions - Ontario Class A Commercial Driver Knowledge Test Exam
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Question
1
of 25
QUESTION 1 / 25
Which Ontario licence best matches a driver who wants full tractor-trailer privileges with air brakes on both the tractor and trailer?
Choose one answer below.
A
Class D with an RV restriction
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B
Full Class A with a Z air brake endorsement
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C
Restricted Class A condition R
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D
Class G with an RV endorsement
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QUESTION 2 / 25
What is the minimum age to apply for an Ontario Class A or Class D truck driver's licence?
Choose one answer below.
A
16 years old
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B
17 years old
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C
18 years old
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D
21 years old
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QUESTION 3 / 25
A driver holds a restricted Class A licence, condition R. Which vehicle use is not allowed under that restriction?
Choose one answer below.
A
Driving a car covered by Class G
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B
Driving a heavy truck covered by Class D
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C
Pulling a trailer equipped with air brakes
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D
Operating a smaller horse trailer combination without trailer air brakes
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QUESTION 4 / 25
Why does mandatory entry-level training matter for a new Ontario full Class A applicant?
Choose one answer below.
A
It must be completed before attempting the Class A road test
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B
It replaces the need for a vision test
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C
It allows the applicant to skip the knowledge test
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D
It is required only after the driver fails a road test
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QUESTION 5 / 25
Ontario's mandatory entry-level training for Class A applicants must include at least how much instruction?
Choose one answer below.
A
24 hours
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B
40 hours
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C
80 hours
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D
103.5 hours
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QUESTION 6 / 25
To avoid a manual transmission restriction on a Class A road test, what vehicle transmission setup does Ontario require?
Choose one answer below.
A
Any automatic transmission with paddle controls
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B
A manual transmission with at least eight forward gears and a high-low range
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C
Any vehicle with five forward gears and air brakes
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D
A semi-automatic transmission with a clutch simulator
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QUESTION 7 / 25
Which vehicle is specifically outside the privilege of an Ontario Class A licence?
Choose one answer below.
A
A vehicle pulling double trailers when properly licensed
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B
A heavy truck covered by Class D
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C
A bus carrying passengers
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D
A car or light truck covered by Class G
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QUESTION 8 / 25
As of May 11, 2026, what additional documentation does Ontario say Class A to F applicants must provide when applying?
Choose one answer below.
A
Proof of primary Ontario residence, legal presence in Canada and eligibility to work in Canada
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B
Proof of owning the truck used for the road test
✓
C
A letter from every previous employer
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D
Proof that they have never held a passenger-car licence
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QUESTION 9 / 25
Who creates Ontario commercial knowledge tests administered at DriveTest Centres?
Choose one answer below.
A
The Ontario Ministry of Transportation
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B
Individual truck training schools
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C
The vehicle owner supplying the road-test truck
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D
The insurance company named on the vehicle
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QUESTION 10 / 25
What score does DriveTest publish as the minimum total score to pass a knowledge test?
Choose one answer below.
A
60 percent
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B
70 percent
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C
80 percent
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D
90 percent
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QUESTION 11 / 25
How does DriveTest describe the timing of knowledge tests?
Choose one answer below.
A
They are not timed, but you must finish before the office closes
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B
They always end after exactly 30 minutes
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C
They have a two-hour limit for commercial applicants
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D
They are timed only if taken on paper
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QUESTION 12 / 25
Which fee combination matches DriveTest's published commercial and air-brake knowledge-test fees?
Choose one answer below.
A
Commercial knowledge test $23.75; air brake Z knowledge test $16.00
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B
Commercial knowledge test $16.00; air brake Z knowledge test $23.75
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C
Both tests are free on the first attempt
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D
Commercial knowledge test $99.00; air brake Z knowledge test $66.00
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QUESTION 13 / 25
How often must an Ontario commercial driver complete the required daily vehicle inspection cycle?
Choose one answer below.
A
Only after crossing a provincial border
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B
Every 24-hour period and while monitoring the vehicle during the trip
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C
Only once per calendar week
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D
Only when a warning light appears
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QUESTION 14 / 25
During a daily trip inspection, a driver finds a minor defect. What is the proper Ontario action?
Choose one answer below.
A
Ignore it until the next annual inspection
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B
Record it on the inspection report and report it to the operator
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C
Drive only if the load is light
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D
Repair it personally even if not qualified
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QUESTION 15 / 25
What must a driver do when a major defect is identified on a commercial vehicle?
Choose one answer below.
A
Drive to the next terminal before writing it down
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B
Operate only during daylight
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C
Have the major defect repaired before operating the vehicle again
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D
Proceed if the hazard lights are used
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QUESTION 16 / 25
Which documents must a driver carry for the daily inspection requirement?
Choose one answer below.
A
Only the previous year's annual inspection certificate
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B
The current inspection report and the applicable inspection schedule
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C
Only a photo of the truck's licence plate
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D
The road-test appointment confirmation
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QUESTION 17 / 25
Which item is included in the MTO daily inspection list for Class A and D vehicles?
Choose one answer below.
A
Cargo securement, if cargo is present
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B
The driver's personal tax records
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C
The route's restaurant stops
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D
The radio station presets
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QUESTION 18 / 25
What is the minimum tread depth for rear tires of a motor vehicle under the Ontario truck handbook's safety discussion?
Choose one answer below.
A
0.5 millimetres
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B
1.5 millimetres
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C
3 millimetres
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D
6 millimetres
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QUESTION 19 / 25
For a motor vehicle with a gross vehicle weight rating over 4,500 kg, what minimum front tire tread depth does the MTO Truck Handbook state?
Choose one answer below.
A
1 millimetre
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B
1.5 millimetres
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C
3 millimetres
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D
10 millimetres
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QUESTION 20 / 25
After wheels or tires have been installed, when do wheel manufacturers recommend rechecking wheel fasteners according to the MTO Truck Handbook?
Choose one answer below.
A
Immediately every 5 km for the first day
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B
Between 80 km and 160 km after installation
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C
Only at the next annual inspection
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D
After 10,000 km of service
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QUESTION 21 / 25
What is steering free play or lash?
Choose one answer below.
A
The distance the steering wheel moves before the tires begin turning
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B
The distance between the trailer axles
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C
The amount the driver may drift within the lane
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D
The difference between loaded and unloaded axle weight
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QUESTION 22 / 25
Which statement best reflects Ontario's rule for air brake adjustment by drivers?
Choose one answer below.
A
Any Class A driver may adjust air brakes after watching another driver
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B
A driver may adjust air brakes only if trained in an approved air brake adjustment course or certified as a mechanic
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C
Only the vehicle owner may adjust air brakes, regardless of training
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D
Air brakes may be adjusted only during annual inspections
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QUESTION 23 / 25
What happens to a commercial vehicle found with critical defects at an Ontario commercial vehicle impound inspection station on a first offence?
Choose one answer below.
A
It receives only a verbal warning
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B
It may be impounded for 15 days
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C
It must be sold for parts
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D
It is exempt if the driver has a clean abstract
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QUESTION 24 / 25
When must a Class A road-test applicant provide a valid daily inspection report and applicable schedule?
Choose one answer below.
A
Only after passing the road test
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B
Before the road test, to the examiner
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C
Only if the vehicle is older than five years
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D
Only if the test route includes a freeway
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QUESTION 25 / 25
When is a Z endorsement required on an Ontario driver's licence?
Choose one answer below.
A
When driving a vehicle with an air brake or air-over-hydraulic brake system
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B
Only when driving outside Ontario
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C
Only when the trailer is longer than 6.5 metres
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D
Only when transporting dangerous goods
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