Nova Scotia Commercial Drivers License Class 3 Practice Test 3

Commercial Driver HQ is a website focused on helping new commercial drivers in all provinces and territories in Canada.

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.

Compatible on desktop, mobile, and tablet, you can take these tests anywhere you have internet access.

Take the practice test!

Created by

Commercial Driver HQ

Nova Scotia Class 3 Practice Test 3

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

1 / 20

What is the purpose of the National Safety Code?

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

Determines how many hours a commercial driver can safely drive

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

Determines minimum safety standards for car manufacturers

2 / 20

What is the wheel base of a vehicle?

The size of the tires on the rear axle

How much room is needed to turn safely

The surface of the road covered by the tires

Distance between the front and rear axle

3 / 20

To measure the time it takes to build up pressure in the air system, the engine should be idling between _______________.

600 to 900 RPM

1000 to 2000 RPM

200 to 500 RPM

800 to 1000 RPM

4 / 20

What is Gross Vehicle Weight Rating?

The weight of the load

Maximum size of the load the truck can carry

Maximum weight of the vehicle, driver, and load combined

Determines which bridges the truck can cross

5 / 20

What does this upside down triangle sign mean?

Yield the right of way

Railway crossing

Come to a complete stop

Slow moving vehicle

6 / 20

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

On each wheels brake

On the vehicle dashboard

Beside the supply tank

Beside the air compressor

7 / 20

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

7 hours

10 hours

12 hours

3 hours

8 / 20

A broken yellow line on the pavement to the left of you means what?

Two way street

You may pass when clear

Trucks stay right

Do not pass

9 / 20

What does this yellow sign mean?

Trucking gear store

No speeding for trucks

Trucks take the lower lane

Steep grade ahead, gear down before you get there

10 / 20

What is the best way to inspect an air compressor?

With the engine on in first gear

With the engine on in neutral

With the engine on and in high gear

With the engine off

11 / 20

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

413 kPa (60 psi)

827 kPa (120 psi)

620 kPa (90 psi)

551 kPa (80 psi)

12 / 20

Which statement is true of spring brakes?

They are not as strong as service brakes

They can be used in lieu of service brakes

They are as strong as service brakes

They are stronger than service brakes

13 / 20

What does this yellow warning sign mean?

Speed up area ahead

Indicates a roundabout is up ahead

Recycling center up ahead

Do a burnout here to impress the cops

14 / 20

What don’t a vehicle’s back wheels usually do?

Tricks

Spin

Rotate

Pivot

15 / 20

Cut in pressure level must never fall below __________.

413 kPa (60 psi)

690 kPa (100 psi)

345 kPa (50 psi)

551 kPa (80 psi)

16 / 20

What is this sign for?

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

Reminds drivers that speed limits in Canada are in metric

Reminds drivers that the temperature in Canada is meausured in metric

Directions to a TED talk

17 / 20

When must a carrier check your driving record?

Before they hire you and then every two years

Before they hire you and then once every year

After they hire you and then every year

Before they hire you and after they fire you

18 / 20

When is an engine retarder most efficient?

High RPMs and lower speeds

High RPMs and high speeds

Lower RPM and higher speeds

Lower RPMs and lower speeds

19 / 20

Class D license holders under age 80 must pass a knowledge and vision test every?

Never

3 Years

5 Years

Year

20 / 20

What does this rectangle sign mean?

Do not turn right

Only right turns allows

No stopping if turning right

No right turns on a red light

Thanks for taking the practice test!

Enter your info to sign up for our mailing list or click "See Result" to move on.

NameEmail

Your score is

The average score is 76%

Ready to finish earning your license? Walk through your final steps with our guide to obtaining your Class 3 license in Nova Scotia

More Nova Scotia Commercial Driving Practice Tests

Nova Scotia Class 1 Practice Tests

Nova Scotia Class 3 Practice Tests

Air Brakes Practice Tests

Nova Scotia Class 4 Practice Tests

Nova Scotia 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.