BC 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

BC Class 3 Practice Test 5

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

1 / 20

In your daily log, you must record what?

Your name

The dates

Which cycle you are on

All of these

2 / 20

What can cause the air pressure in the air brake system to drop?

All of these

A broken air compressor

Disconnected supply line

A hole in the supply line

3 / 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

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

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

4 / 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

Distance between the front and rear axle

The surface of the road covered by the tires

5 / 20

Cut out pressure level must never exceed __________.

1138 kPa (165 psi)

1000 kPa (145 psi)

862 kPa (125 psi)

690 kPa (100 psi)

6 / 20

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

Steel toe boots, safety glasses, hard hats

Shorts and Crocs

Dust mask, safety glasses

Sandals and shorts

7 / 20

What does this sign mean near a roundabout?

No passing trucks on the inside of the circle

No fishtailing trucks

No driving under the trucks

Trucks are bigger than cars

8 / 20

What does this construction sign mean?

Bumpy road ahead

Small cars only

Pavement ends ahead

Grooves in the pavement ahead

9 / 20

Which of these vehicle driver’s are exempt from the Hours of Service Regulations?

Tow vehicles

All of the above

RV’s or Motor Homes

Mobile cranes

10 / 20

What is a vehicle's danger zone?

30 metres behind a commercial vehicle

A commercial vehicles blind spots plus 5 metres

20 metres around an entire commercial vehicle when moving

The amount of distance required to stop the vehicle

11 / 20

Which of these vehicles would usually have an air brake system?

A pickup truck

A hearse

A school bus

A compact car

12 / 20

If you see an open truck inspection station which driving your truck, you must?

Stop at the inspection stations for an inspection

Decide whether or not you want to stop

Wait for an inspector to direct you into the station

Only stop if you have not been inspected recently

13 / 20

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

All of the below

Flooding

Road condition

Ice

14 / 20

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

On each wheels brake

Beside the air compressor

On the vehicle dashboard

Beside the supply tank

15 / 20

What does this yellow sign mean?

Caution, railway tracks cross the road here

Hidden intersection ahead

Streetcar lines up ahead

Watch out for power lines

16 / 20

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

Tricks

Spin

Pivot

Rotate

17 / 20

What does this sign tell you about commercial vehicles?

Trucks might have their left blinker on for no reason

The lane is too narrow for trucks to turn

Watch out for truck dragging logs behind them

Trailers with overhang might enter your lane when turning right

18 / 20

What function does the alcohol evaporator perform?

Prevents freezing

Prevents overheating

Prevents the system from building up too much pressure

Prevents moisture build ups in the brake lines

19 / 20

What does this sign tell you?

This is the exit for the brake check area

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

20 / 20

Drivers must operate in a cycle. What are the two cycles available to drivers?

A seven or fourteen day cycle

A five or ten day cycle

A fourteen or twenty-one day cycle

A Seven or twenty one day cycle

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The average score is 84%

Ready to take the real knowledge test? Find out more about completing your Class 3 drivers license in BC

More British Columbia Commercial Driving Practice Tests

BC Class 3 Practice Tests

Air Brakes Practice Tests

BC Class 1 Practice Tests

BC Class 4 Practice Tests

BC 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.