Quebec Commercial Drivers License Class 3 Practice Test 5

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Commercial Driver HQ

Quebec Class 3 Practice Test 5

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

1 / 20

How do you define Gross Weight?

Weight of the vehicle and the load

Weight of the driver

Weight of just the load

Weight of your empty vehicle

2 / 20

What colour will the road generally look in the winter time?

None of these

Black and icy

Brown from the sand and salt

Light grey with some white

3 / 20

The air system pressure range must be between _________.

690 kPa (100 psi) and 1380 kPa (200 psi)

551 kPa (80 psi) and 1000 kPa (145 psi)

483 kPa (70 psi) and 1138 kPa (165 psi)

413 kPa (60 psi) and 828 kPa (120 psi)

4 / 20

System air loss should be measured by applying the brake for how long?

2 minutes

5 minutes

1 minute

10 minutes

5 / 20

The pushrod stroke occurs when compressed air enters the?

Engine block

Air compressor

Supply tank

Brake chamber

6 / 20

What is this sign used for?

Tells you the max speed limit within a given timeframe

Tells you which lanes to use on a given day

Tells you the time of day you can park in the area

Tells you how long you can park for

7 / 20

Which of these significantly decreases the brake force produced at the wheel?

Overextension of the brake chamber pushrod

Cold air temperatures

Damp road conditions

High pressure in the compressed air tanks

8 / 20

What does this speed sign mean?

The current speed limit

The truck weight limit

The limit of cars for the bridge

The speed limit changes up ahead

9 / 20

A commercial vehicle with air brakes engaged must not lose air pressure faster than?

38 kPa/minute

32 kPa/minute

26 kPa/minute

21 kPa/minute

10 / 20

Which of these are indicators that you may have difficulty with the clearance under your vehicle?

All of the below

Ice

Road condition

Flooding

11 / 20

When you license is suspended you _________.

Cannot drive

May drive during the day

May drive only for work

Must drive with a licensed driver

12 / 20

Driving a commercial vehicle on the road is?

Hard

A freedom

A privilege

A right

13 / 20

What is the gross weight of your vehicle?

Weight of the vehicle itself

Weight of the load

Weight of the driver

Weight of the load and the vehicle

14 / 20

What does this sign mean?

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

Tells you a construction zone begins in X kilometers

15 / 20

What is a requirement on your daily log?

Date

Odometer reading

Driver name

All of these

16 / 20

What does this sign tell you about a roundabout?

The roundabout ends after the 138 east exit

Route 40 takes you to the 138 east

The destination of each of the exits

You can get to Trois-Rivieres using the 138 east or west

17 / 20

What does this sign mean?

Narrow road up ahead

Winding road up ahead

Road grade might vary over the next 50km

Danger of tipping at high speeds on this corner

18 / 20

Trailer air brake systems must apply a spring brake when the pressure drops below?

414 kPa (60 psi)

514 kPa (74 psi)

242 kPa (35 psi)

690 kPa (100 psi)

19 / 20

Don't use the differential lock when __________?

The wheels are different

Carrying a load

The vehicle is stopped

The wheels are spinning

20 / 20

If you are driving through snow and you see blue flashing lights up ahead, what do you do?

Pull over becuase it is the police

Speed up to pass the slow moving lights

Slow down as there is an accident up ahead

The blue lights are a snow plow, prepare to slow down behind it

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The average score is 84%

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.