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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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

What is the "cut in" level?

The maximum speed the air brakes can stop at

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

The safest pressure level you can turn off the truck at

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

2 / 20

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

Log cycle

Where you start and end your day

All of these

Driver name

3 / 20

When inspecting your brakes, you must?

All of these

Block the truck with wheel chocks

Drive the vehicle to level ground

Apply spring brakes

4 / 20

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

Keep your front wheels as close to the right side of 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

5 / 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 opens letting more air into the brakes

The air valve signals the compressor to turn on

The air valve is operated by the gas pedal

6 / 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

7 / 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

8 / 20

What does this yellow sign mean?

Children crossing

Watch for pedestrians

Playground area

Business area up ahead

9 / 20

The spring brake is designed for which situation?

Skids and emergencies

Loading skids into the trailer

Parking and emergencies

Skids and parking

10 / 20

Don't use the differential lock when __________?

Carrying a load

The wheels are spinning

The vehicle is stopped

The wheels are different

11 / 20

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

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

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

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

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

12 / 20

What does this speed sign mean?

The truck weight limit

The speed limit changes up ahead

The limit of cars for the bridge

The current speed limit

13 / 20

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

A service brake priority trailer

Both of these

A spring brake priority trailer

None of these

14 / 20

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

The air compressor

The air lines

The pressure gauge

The foundation brake components

15 / 20

What is the maximum width a commercial vehicle can be?

2 metres

4 metres

1.8 metres

2.6 metres

16 / 20

What does this yellow diamond mean?

School bus stop ahead

Traffic lights ahead

Stop signs up ahead

Treat as a four way stop

17 / 20

When is a pre-trip inspection required?

When a light comes on the dashboard

Weekly

When there is visual damage

Daily

18 / 20

What does this yellow diamond sign mean?

Pavement is slipper when wet

Water may be flowing over the road

Bumpy pavement ahead

Winding road up ahead

19 / 20

What does this sign tell you?

Exit sign for the town Brake Check

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

Tells you brake check area is coming up

This is the exit for the brake check area

20 / 20

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

All of these

Power steering belt

Water pump belt

Alternator belt

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The average score is 86%

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.