Quebec Commercial Drivers License Class 3 Practice Test 3

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Our FREE practice tests are designed to help you succeed when it comes time to write the real test.

Each license type has 5 tests to help you study and become familiar with the rules and regulations of commercial driving. The tests are not identical to the license test you will need to pass, but the questions are similar to what you will find on the real deal.

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Commercial Driver HQ

Quebec Class 3 Practice Test 3

A 20 question practice test to help prepare you for the Class 3 knowledge test in Quebec

1 / 20

Test the low pressure alarm with the air pressure above __________.

413 kPa (60 psi)

551 kPa (80 psi)

620 kPa (90 psi)

827 kPa (120 psi)

2 / 20

To apply for a Class D license you must be?

21 years old

Any age

16 years old

18 years old

3 / 20

What does this sign warn you of?

Scary water monsters on this road

This road is cleaned frequently

This road is prone to flooding

Strong crosswinds on this road

4 / 20

What is the wheel base of a vehicle?

How much room is needed to turn safely

The size of the tires on the rear axle

Distance between the front and rear axle

The surface of the road covered by the tires

5 / 20

When should you be ready to stop for a school bus?

School hours

In residential areas only

During the day

Anytime

6 / 20

What does this sign tell you?

No red lights on the island of Montreal

No right turns on the island of Montreal

No stopping on the island of Montreal

No left turns on the island of Montreal

7 / 20

When you are testing your spring brakes, the test is considered a success when?

The truck can move 1.5 meters

The wheels can only turn a half revolution

The front wheels are blocked

The vehicle only moves slightly back and forth

8 / 20

When a school bus is stopped, how far back must you keep your vehicle?

5 metres away

15 metres away

25 metres away

20 metres away

9 / 20

Drivers need to perform a vehicle inspection every ________.

Month

24 hours

Week

72 hours

10 / 20

The maximum allowable height for a road vehicle is?

4.10 m

3.65 m

4.15 m

5.25 m

11 / 20

Where are the vehicles air tanks located?

Inside the wheel

In the cab of the vehicle

In the engine compartment

Underneath around the frame

12 / 20

What does this sign mean?

The road ahead is closed

Tells you the name of the city ahead

The road ahead is challenging

The name of the street you are on

13 / 20

When is a pre-trip inspection required?

Daily

When a light comes on the dashboard

Weekly

When there is visual damage

14 / 20

If you see an open truck inspection station which driving your truck, you must?

Only stop if you have not been inspected recently

Wait for an inspector to direct you into the station

Stop at the inspection stations for an inspection

Decide whether or not you want to stop

15 / 20

When brakes become overheated they also become?

None of the above

Extra efficient

Dangerously inefficient

Very hot

16 / 20

How long should it take for the air pressure to rise from 587kPa to 690 kPa after the pressure had fallen below 552 kPa?

4 mins

5 mins

1 min

2 mins

17 / 20

What does a governor do in an air brake system?

Tells the other brakes what do to

Limits the speed by using automatic braking

Regulates the air pressure

Regulates the tire pressure

18 / 20

What colour are the lights on a school bus arm?

Blue

Green

Red

Yellow

19 / 20

What does this yellow diamond warning sign mean?

Road ends in 3.9 meters

Only vehicles over 3.9 meters wide allowed

Underpass ahead, clearance is 3.9 meters

Narrow road up ahead

20 / 20

What does this yellow sign mean?

The right lane ends up ahead

Pavement ends in right lane

Pedestrian crossing up ahead

Left lane ends up ahead

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The average score is 83%

Ready to take the real knowledge test? Find out more about completing your Class 3 drivers license in Quebec

More Quebec Commercial Driving Practice Tests

Quebec Class 1 Practice Tests

Quebec Class 3 Practice Tests

Air Brakes Practice Tests

Quebec Class 4 Practice Tests

Quebec Road Signs Test

We do our best to keep the questions current and accurate. The testing centres may change the questions on the knowledge tests at any time. Always be prepared for surprises.

Many of the answers to the questions can be found in the driver hand books or learning materials your province provides.

DISCLAIMER:CDHQ is not affiliated with the provinces or any test centres. These practice tests should not be considered official tests and you are not granted a license for completing them. Our tests are simply a practice tool to help prepare yourself for the real test.