Saskatchewan Commercial Drivers License Class 3 Practice Test 5

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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

Saskatchewan Class 3 Practice Test 5

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

1 / 20

What are the four factors that affect commercial vehicle stopping distance?

Driving speed, weather conditions, tire pressure, reaction time

How many people in the truck, truck weight, driver awareness, truck speed

Reaction time, truck weight, distance to the vehicle ahead, distance of the vehicle behind you

Braking conditions, tire traction, truck weight, driving speed

2 / 20

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

3 times as much

2 times as much

10 times as much

6 times as much

3 / 20

What should you do when the air brakes low pressure warning comes on?

Call the police to let them know

Check it at the nearest garage

Slow down but keep driving

Stop safely and immediately

4 / 20

What is the maximum width a commercial vehicle can be?

2.6 metres

4 metres

1.8 metres

2 metres

5 / 20

A vehicle should have wheel chocks or blocks securing it in place during inspection if...?

The driver is not within 50 m of the vehicle

The driver leaves the cab under any circumstances

The driver leaves the cab without applying the parking brake

Any of these apply

6 / 20

You test a tractor protection valve by removing the service line and?

Engaging the brake pedal

Starting the truck

Switching the gears

Driving 150 metres

7 / 20

What does this yellow sign with a black arrow mean?

Sharp curve in the road

Crosswalk ahead

Right turn lane

Exit on the right

8 / 20

Tired drivers are often compared to?

Productive drivers

Good drivers

Impaired drivers

Busy drivers

9 / 20

What does this warning sign mean?

Do not enter

Paved surface ends ahead

Right lane ends ahead

Hazard close to the edge of the road

10 / 20

What powers the air brakes air compressor system?

The trucks engine

Overhead wires

The battery

The rotation of the wheels

11 / 20

When a school bus is stopped, how far back must you keep your vehicle?

5 metres away

25 metres away

20 metres away

15 metres away

12 / 20

How often must you inspect your commercial vehicle?

Every week

24 hours

12 hours

14 hours

13 / 20

What does this sign tell you?

Parking beside trucks only

Trucks parked on the road up ahead

Defines a commercial vehicle parking area

Police truck supply route

14 / 20

What is the "cut in" level?

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

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 maximum speed the air brakes can stop at

15 / 20

What is a normal reaction time for a driver?

.75 seconds

1 second

1.5 seconds

2 seconds

16 / 20

How many classes of dangerous goods are there?

17 / 20

What does this sign mean?

Share the road with other drivers

Share the road with cyclists

Share the road with pedestrians

All of these

18 / 20

What does this red sign mean?

Stop only if other vehicles approaching

Rolling stop

Come to a complete stop

Stop up ahead

19 / 20

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

The air lines

The pressure gauge

The foundation brake components

The air compressor

20 / 20

How many off-duty hours must a commercial driver have in a day?

7 hours

3 hours

12 hours

10 hours

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The average score is 83%

More Saskatchewan Commercial Driving Practice Tests

Saskatchewan Class 1 Practice Tests

Saskatchewan Class 3 Practice Tests

Air Brakes Practice Tests

Saskatchewan Class 4 Practice Tests

Saskatchewan 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.