Saskatchewan Commercial Drivers License Air Brakes Practice Test 5

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Saskatchewan Air Brakes Practice Test 5

A 20 question practice test to help prepare you for your air brakes knowledge test in Saskatchewan

1 / 20

When you are testing your spring brakes, the test is considered a success when?

The truck can move 1.5 meters

The wheels can only turn a half revolution

The vehicle only moves slightly back and forth

The front wheels are blocked

2 / 20

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

Drive at full speed

Tap on them

Pull on them

Inspect them

3 / 20

Test the low pressure alarm with the air pressure above __________.

551 kPa (80 psi)

413 kPa (60 psi)

620 kPa (90 psi)

827 kPa (120 psi)

4 / 20

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

False

True

5 / 20

What is the most frequent reason a vehicle is removed from service?

Tire treads

Over weight limits

Air brakes

Sleepy drivers

6 / 20

The best way to reduce rough and abrupt braking is to?

Ride the brake pedal all the time

Wear a helmet in the cab

Follow other vehicles at a safe distance

Drive on highways only

7 / 20

Most air brake systems will use automatic valves to?

Increase pressure at the back wheels

Reduce pressure at the back wheels

Increase pressure at the front wheels

Reduce pressure at the front wheels

8 / 20

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

On each wheels brake

On the vehicle dashboard

Beside the supply tank

Beside the air compressor

9 / 20

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

2 minutes

1 minute

5 minutes

10 minutes

10 / 20

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

Shorts and Crocs

Dust mask, safety glasses

Steel toe boots, safety glasses, hard hats

Sandals and shorts

11 / 20

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

Turn off your air brakes

Replace the line

Cover it with tape

Leave it alone, it's fine

12 / 20

When can you adjust your own air brakes?

If you are certified or trained

When you are on the road

Never

If it is an emergency

13 / 20

The air system pressure range must be between _________.

483 kPa (70 psi) and 1138 kPa (165 psi)

551 kPa (80 psi) and 1000 kPa (145 psi)

413 kPa (60 psi) and 828 kPa (120 psi)

690 kPa (100 psi) and 1380 kPa (200 psi)

14 / 20

Why is it important to know where your air system releases air pressure from?

Because you should know your truck

Because it can be dangerous

In case anyone ever asks

So you're not suprised

15 / 20

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

Driving too slow

Proper maintenance

Driving the speed limit

Exceeding the vehicles weight limit

16 / 20

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

Rotors

Lining

Drum

Shoe

17 / 20

What is the service brake used for?

Drifting

Normal braking

None of these

Emergency braking

18 / 20

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

600 to 900 RPM

1000 to 2000 RPM

200 to 500 RPM

800 to 1000 RPM

19 / 20

What happens to the air valve when you press down the brake?

The air valve signals the compressor to turn on

The air valve is operated by the gas pedal

The air valve opens letting more air into the brakes

The air valve closes, leaving the brake pressure the same

20 / 20

When inspecting your brakes, you must?

All of these

Block the truck with wheel chocks

Apply spring brakes

Drive the vehicle to level ground

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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.