Alberta Commercial Drivers License Class 3 Practice Test 4

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Commercial Driver HQ

Alberta Class 3 Practice Test 4

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

1 / 20

What is Gross Vehicle Weight Rating?

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

The weight of the load

2 / 20

How much stopping distance does a truck need compared to a normal car?

2 times as much

3 times as much

10 times as much

6 times as much

3 / 20

After loading a dump truck, what must you do before moving the vehicle?

Secure the load so that it will not blow or fall off

Group all of the material to one side of the box

Secure the load only if it is a carrier policy

Group all of the material to the back of the box

4 / 20

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

200 to 500 RPM

800 to 1000 RPM

1000 to 2000 RPM

600 to 900 RPM

5 / 20

What is the best way to dry out your brakes after driving through water?

Lower speed and pump the brakes

Hit your brakes aggressively to heat up the pads

Apply slight pressure to the brakes for a while

Stop the vehicle and wipe them down with your towel

6 / 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

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

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

7 / 20

What does this yellow warning sign mean?

Wildlife reserve ahead

Zoo ahead

Deer crossing in this area

Fast speeds ahead

8 / 20

What does this warning sign mean?

Paved surface ends ahead

Right lane ends ahead

Hazard close to the edge of the road

Do not enter

9 / 20

To make sure the air tanks are securely attached to the vehicle you should?

Inspect them

Pull on them

Tap on them

Drive at full speed

10 / 20

When must a carrier check your driving record?

After they hire you and then every year

Before they hire you and after they fire you

Before they hire you and then every two years

Before they hire you and then once every year

11 / 20

As a driver you are expected to practice _________?

Proper hygiene

Safe driving practices

Common sense

On-time deliveries

12 / 20

Which party is responsible for ensuring correct and compliant weight of a shipment?

Drivers only

Drivers and shippers

Drivers, operators, and shippers

Drivers and operators

13 / 20

System air loss should be measured by applying the brake for how long?

1 minute

2 minutes

5 minutes

10 minutes

14 / 20

What do these signs mean if you see a construction worker holding them up?

Crossing guard signs

Stop or slow down, your choice

Stop slowing down

Stop or slow down depending on which part of the sign is facing your vehicle

15 / 20

How do you define Gross Weight?

Weight of the vehicle and the load

Weight of just the load

Weight of your empty vehicle

Weight of the driver

16 / 20

What does this orange sign mean?

Military checkpoint

Road is made of loose gravel

Pavement ends ahead

Road work begins ahead

17 / 20

When inspecting your brakes, you must?

All of these

Apply spring brakes

Block the truck with wheel chocks

Drive the vehicle to level ground

18 / 20

What does this construction sign mean?

Pavement ends ahead

Grooves in the pavement ahead

Bumpy road ahead

Small cars only

19 / 20

The supply tank should discharge more moisture than any other tank?

True

False

20 / 20

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

Leave it alone, it's fine

Cover it with tape

Replace the line

Turn off your air brakes

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The average score is 82%

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

More Alberta Commercial Driving Practice Tests

Alberta Class 3 Practice Tests

Alberta Class 1 Practice Tests

Alberta Class 4 Practice Tests

Air Brakes Practice Tests

Alberta 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.