Quebec Commercial Drivers License Class 1 Practice Test 4

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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 1 Practice Test 4

A 20 question practice test to help prepare you for the Class 1 knowledge test in Quebec

1 / 20

What does this sign mean?

Winding road ahead

Slippery road ahead

Snakes ahead

Swerving up ahead is dangerous

2 / 20

Read tire tread depth must be more than ______.

1mm

1.5mm

3mm

8mm

3 / 20

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

5 metres away

15 metres away

20 metres away

25 metres away

4 / 20

What should you do when the air brakes low pressure warning comes on?

Call the police to let them know

Check it at the nearest garage

Stop safely and immediately

Slow down but keep driving

5 / 20

The tallest your vehicle can be is?

3.75 m

5.30 m

4.15 m

5.00 m

6 / 20

Overheated brakes are?

Normal

Dangerously inefficient

None of these

Dangerously efficient

7 / 20

What are the four factors that affect commercial vehicle stopping distance?

Reaction time, truck weight, distance to the vehicle ahead, distance of the vehicle behind you

Braking conditions, tire traction, truck weight, driving speed

Driving speed, weather conditions, tire pressure, reaction time

How many people in the truck, truck weight, driver awareness, truck speed

8 / 20

What does this sign tell you about parking?

Parking is permitted for 2 hours

You can only park here at 2pm

The 2 parking spaces have a 2 hour limit

Parking costs 2 dollars

9 / 20

What is the first thing to look at when inspecting an air brake system?

The foundation brake components

The air lines

The air compressor

The pressure gauge

10 / 20

When you turn 65, you now need to submit a medical report how often?

Quarterly

Monthly

Every 2 years

Annually

11 / 20

What does this sign mean?

Tells you a construction zone begins in X kilometers

Tells you how many lanes in the construction zone

Travel carefully for the next X km

Tells you the speed limit in the construction zone

12 / 20

What does this sign tell you about the cities named?

Provides the correct spelling before entering the city

Lists the closest golf courses to the highway

Gives the elevation of each city

Provides the distance to the cities along the highway

13 / 20

What does a trailers hand valve do?

Applies the trailers service brakes independently of the truck

Sends power to the left and right turn signals

Pumps up the trailers landing gear

Engages the spring brakes when the lever is pulled

14 / 20

What is an important part of connecting a trailer to a tractor?

Connecting the trailer in a straight line

Precision when backing up to the trailer

Unlocking the 5th wheel before driving

Physically checking the connection

15 / 20

The low air pressure warning device needs to be replaced or adjusted if it does not trigger at a minimum level of?

551 kPa (80 psi)

413 kPa (60 psi)

242 kPs (35 psi)

380 kPa (55 psi)

16 / 20

Which valves are the tractor protection system?

The trailer supply valve and the hand valve

The trailer supply valve and the tractor protection valve

The trailer supply valve and the relay emergency valve

The trailer supply valve and the foot valve

17 / 20

The spring brake is designed for which situation?

Parking and emergencies

Loading skids into the trailer

Skids and parking

Skids and emergencies

18 / 20

Driving a commercial vehicle on the road is?

Hard

A privilege

A right

A freedom

19 / 20

What does a slider do on a trailer?

Shorten the wheel base for easier backing up

Shorten the pin setting and adjust axle weights

Shorten the wheel base for easier cornering

Shorten overall wheel base

20 / 20

What is the gross weight of your vehicle?

Weight of the load

Weight of the load and the vehicle

Weight of the driver

Weight of the vehicle itself

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The average score is 78%

Did you pass the test? Find out what your next steps are with our Quebec Class 1 license guide

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.