Manitoba 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

Manitoba Class 3 Practice Test 3

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

1 / 20

What does this yellow sign mean?

Trucks take the lower lane

Steep grade ahead, gear down before you get there

No speeding for trucks

Trucking gear store

2 / 20

What must you do at a stop sign with a painted stop line?

Take a sip of your coffee

Come to a complete stop

Look quickly before proceeding

Perform a rolling stop

3 / 20

What gauges should you check after starting your vehicle?

Oil, Voltmeter, Water Temperature and Fuel Gauge

Fuel, Oil and Air Brake Gauges

Oil, Voltmeter and Air Brake Gauges

None of these

4 / 20

Where is the air pressure gauge for the air brake system?

Beside the supply tank

On the vehicle dashboard

Beside the air compressor

On each wheels brake

5 / 20

Don't use the differential lock when __________?

The wheels are different

Carrying a load

The vehicle is stopped

The wheels are spinning

6 / 20

Before driving down a grade (hill), you should?

Check your mirror

Choose an appropriate gear

Honk your horn

Pick up some speed

7 / 20

When inspecting an air brake system, the person inspecting should wear?

Steel toe boots, safety glasses, hard hats

Dust mask, safety glasses

Sandals and shorts

Shorts and Crocs

8 / 20

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

15 metres away

20 metres away

25 metres away

5 metres away

9 / 20

The air system pressure range must be between _________.

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

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

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

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

10 / 20

The best way to reduce rough and abrupt braking is to?

Ride the brake pedal all the time

Drive on highways only

Follow other vehicles at a safe distance

Wear a helmet in the cab

11 / 20

What does this directional sign tell you?

Take this route if you want to use your chains

Truck parking and truck lock area

Exit for freight lock up area to lighten your load

This is the exit lane for the chain up area

12 / 20

How many off duty hours must a driver have in a day?

3 hours

10 hours

7 hours

13 hours

13 / 20

What does this sign mean?

No U-turns during the time posted

No left turns during the posted times

Road to the left is closed during the posted times

Left turns only on weekends

14 / 20

What does this sign mean?

Moose crossing in the next kilometer

Dessert restaurant up ahead

You might encounter moose on the road within the next x Km

Watch out for deer ahead

15 / 20

When is a pre-trip inspection required?

When there is visual damage

Weekly

When a light comes on the dashboard

Daily

16 / 20

What is this sign for?

Reminds drivers that speed limits in Canada are in metric

Means actual speeed limit in a 50km/h zone is 80km/h

Directions to a TED talk

Reminds drivers that the temperature in Canada is meausured in metric

17 / 20

What is a vehicle's danger zone?

20 metres around an entire commercial vehicle when moving

A commercial vehicles blind spots plus 5 metres

30 metres behind a commercial vehicle

The amount of distance required to stop the vehicle

18 / 20

What happens to the air valve when you press down the brake?

The air valve closes, leaving the brake pressure the same

The air valve is operated by the gas pedal

The air valve opens letting more air into the brakes

The air valve signals the compressor to turn on

19 / 20

Doing this will put unnecessary strain on your vehicles braking system.

Proper maintenance

Driving the speed limit

Exceeding the vehicles weight limit

Driving too slow

20 / 20

What is the purpose of the National Safety Code?

Determines minimum safety standards for car manufacturers

To set out minimum safety standards for commercial vehicles, drivers and carriers operating in Canada

Determines rules for safe operation of many different tasks and vehicles in Canada

Determines how many hours a commercial driver can safely drive

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Your score is

The average score is 88%

Time to take the real test? Learn more about this step and the others with our Manitoba Class 3 drivers license guide

More Manitoba Commercial Driving Practice Tests

Manitoba Class 1 Practice Tests

Manitoba Class 3 Practice Tests

Manitoba Class 4 Practice Tests

Air Brakes Practice Tests

Manitoba 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.