Nova Scotia Commercial Drivers License Class 3 Practice Test 5

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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

Nova Scotia Class 3 Practice Test 5

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

1 / 20

When inspecting your brakes, you must?

Apply spring brakes

Drive the vehicle to level ground

All of these

Block the truck with wheel chocks

2 / 20

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

Come to a complete stop

Perform a rolling stop

Look quickly before proceeding

Take a sip of your coffee

3 / 20

When curving left, what should you do to ensure the back wheels stay in your lane?

Keep your wheels close to the centre line

Take up both lanes to ensure safety for everyone on the road

Keep your front wheels inside the lane to the right of you

Keep your front wheels as close to the right side of your lane

4 / 20

What does this yellow sign mean?

Business area up ahead

Playground area

Children crossing

Watch for pedestrians

5 / 20

What does this yellow diamond sign mean?

Bumpy pavement ahead

Pavement is slipper when wet

Water may be flowing over the road

Winding road up ahead

6 / 20

What is the "cut in" level?

The safest pressure level you can turn off the truck at

The pressure level that triggers the governor to cut off the air compressor

The maximum speed the air brakes can stop at

The pressure level that triggers the governor to turn on the air compressor

7 / 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 signals the compressor to turn on

The air valve opens letting more air into the brakes

8 / 20

What does this sign tell you?

This is the exit for a parking area to take a break in

This is the exit for the brake check area

Tells you brake check area is coming up

Exit sign for the town Brake Check

9 / 20

Don't use the differential lock when __________?

The vehicle is stopped

The wheels are different

Carrying a load

The wheels are spinning

10 / 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

11 / 20

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

The air lines

The foundation brake components

The pressure gauge

The air compressor

12 / 20

When backing up to unload a dump truck, what should you do?

Make sure the guide is directly behind you

Make sure the backing alarm is on

Back the vehicle up quickly, there are other trucks waiting

Rely on the hand signals of the guide

13 / 20

Which piece of information needs to appear on your drivers log?

All of these

Log cycle

Driver name

Where you start and end your day

14 / 20

Which belt should you check during your pre-trip inspection?

Alternator belt

Water pump belt

Power steering belt

All of these

15 / 20

What does this yellow diamond mean?

School bus stop ahead

Traffic lights ahead

Stop signs up ahead

Treat as a four way stop

16 / 20

What is the maximum width a commercial vehicle can be?

4 metres

1.8 metres

2 metres

2.6 metres

17 / 20

Which type of trailer can be towed before the service tanks are full?

Both of these

A service brake priority trailer

A spring brake priority trailer

None of these

18 / 20

If your speed increases too much while going down a hill, what should you do?

Lightly press the brake pedal until the vehicle slows down to a safe speed

Increase your speed even more, switch to a higher gear and lightly apply the brakes

Shift to a higher gear immediately and apply firm pressure to the brake pedal until you slow down

Lightly apply the brakes to lower your speed about 10-15km/h under your safe speed and lower your main gear

19 / 20

When is a pre-trip inspection required?

When there is visual damage

When a light comes on the dashboard

Weekly

Daily

20 / 20

The spring brake is designed for which situation?

Loading skids into the trailer

Skids and emergencies

Parking and emergencies

Skids and parking

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The average score is 85%

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.