New Brunswick Commercial Drivers License Class 3 Practice Test 4

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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

New Brunswick Class 3 Practice Test 4

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

1 / 20

What does this yellow sign mean?

Business area up ahead

Playground area

Children crossing

Watch for pedestrians

2 / 20

When going down hills you should?

Shift into a lower gear

Shift into a higher gear

Wear your seatbelt

Pick up speed

3 / 20

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

Ice

All of the below

Flooding

Road condition

4 / 20

What is an ABS system?

Increases braking power

Prevents wheel lock

Automatically brakes when needed

Reduces stopping distance

5 / 20

If the outer layer of an airline is damaged, but the inner layer is ok, what should you do?

Replace the line

Cover it with tape

Turn off your air brakes

Leave it alone, it's fine

6 / 20

Which of these is not part of an air brake system?

Lining

Drum

Rotors

Shoe

7 / 20

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

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

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

8 / 20

At vehicle inspection stations, axles are inspected for?

Condition

Brand

All of these

Spacing

9 / 20

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

Black and icy

None of these

Brown from the sand and salt

Light grey with some white

10 / 20

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

Never

Year

5 Years

3 Years

11 / 20

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

Look quickly before proceeding

Take a sip of your coffee

Perform a rolling stop

Come to a complete stop

12 / 20

What is the correct use of an ABS system during a braking emergency?

Pump the brake pedal until slowed then hold the pedal

Press the pedal 3 times until the ABS is activated

Pump the brake pedal until the vehicle stops.

Press the pedal firmly and hold until the vehicle stops

13 / 20

Who can perform adjustments and maintenance on your air brake system?

Your employer

You can if you are the owner

Only certified technicians

Anyone

14 / 20

What does this sign warn you of?

The truck driver is on the run from the law

You are crossing a runaway truck lane

Trucks will cross-dock freight up ahead

Big hill coming up, slow down

15 / 20

What does this sign tell you?

Share the road with other drivers

Share the road with cyclists

All of these

Share the road with pedestrians

16 / 20

Overheated brakes are?

Normal

Dangerously efficient

None of these

Dangerously inefficient

17 / 20

What does this sign mean?

Area reserved for loading and unloading

Area reserved for vehicles parking with a valid permit

Area parking for all vehicles except accessibility permit holders

Area reserved for picking up and dropping off passengers with disabilities

18 / 20

Spring brake controls are usually what color?

Orange

Blue

Red

Yellow

19 / 20

What does this yellow sign mean?

Boat ramp up ahead

Bike lanes ahead

Snowmobiles cross this road

Snowmobile parking

20 / 20

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

Driving too slow

Driving the speed limit

Exceeding the vehicles weight limit

Proper maintenance

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Your score is

The average score is 85%

Want to know more? Learn all about getting your Class 3 drivers license in New Brunswick

More New Brunswick Commercial Driving Practice Tests

New Brunswick Class 1 Practice Tests

New Brunswick Class 3 Practice Tests

New Brunswick Class 4 Practice Tests

Air Brakes Practice Tests

New Brunswick 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.