SASKATCHEWAN AIR BRAKE PRACTICE TEST 02

Air brakes are an essential part of ensuring road safety in Saskatchewan, Canada. These brakes are often used by larger vehicles such as trucks and buses to slow down or stop the vehicle during travel.

Saskatchewan Air Brake Test 02

1 / 25

Spring brakes will begin to drag at around what psi?

2 / 25

Using wind off bolts to compress the power spring in spring brakes is known as what?

Bolting the brakes

Feathering the brakes

Locking the brakes

Caging the brakes

3 / 25

The ratio valve will be found where?

In the trailer delivery line

In the rear axle delivery line

Between the compressor and supply reservoir

In the front axle delivery line

4 / 25

If your vehicle has an air dryer system, the reservoirs need to be drained...?

With the same regularity as if it didn't

Less often than if it didn't

More often than if it didn't

Any of these depending on operational conditions

5 / 25

The purpose of dual circuit air systems is what?

To increase braking power

To prevent total brake failure

To increase compressor efficiency

To prevent wheel lock-up

6 / 25

If the low pressure warning is activated, what should the driver do?

Proceed at lower speed

Stop and investigate immediately

Report it to mechanics at the end of shift

Investigate at the next scheduled stop

7 / 25

On a dual circuit air brake system, the brakes will be applied by...?

A single pedal

A pedal and a hand valve

Two pedals

Two hand valves

8 / 25

What does an anti-compound line do?

Balances the pressure between service brakes and the spring brakes

Immediately releases the service brakes if spring brakes are applied

Immediately releases the spring brakes if the service brakes are applied

Any of these depending on brake application

9 / 25

If a vehicle has a front wheel limiting valve, when activated it will reduce application pressure on the steering axle brakes by how much?

25%

100%

75%

50%

10 / 25

The tractor protection system is designed to do what?

Stop the tractor losing air

Stop the tractor brakes locking

Stop air bleeding back from the trailer to the tractor

Stop the trailer running into the tractor

11 / 25

Why are spring brake chambers preferred as parking brakes?

They are easier to maintain than air brakes

They can't be affected by loss of air pressure

All of these reasons

They are more effective than air brakes

12 / 25

When blended air is used to supply the control valve in a dual circuit system, it is taken from the primary and secondary circuits through...?

A safety valve

A two-way check valve

The foot valve

A relay valve

13 / 25

The tractor protection system must be set to activate before system pressure drops below...?

40 psi

20 psi

10 psi

30 psi

14 / 25

A relay valve is installed to combat what?

High pressure

Brake lag

Overheating

Air loss

15 / 25

Under normal operating conditions the secondary reservoir operates...?

The air dryer

The compressor

The rear service brakes

The front service brakes

16 / 25

If one circuit on a dual circuit system fails, the other circuit will do what?

Continue to operate independently

Fail also

Switch to operating both systems

Switch to operating the failed system

17 / 25

A low pressure warning switch must be activated when the air pressure drops below what level?

60 psi

40 psi

50 psi

70 psi

18 / 25

The control button for the trailer supply valve is usually...?

Green, hexagonal

Blue, square

Red, circular

Red, octagonal

19 / 25

A properly adjusted governor will cut in at what pressure below the cut out pressure?

10 - 15 psi

30 - 35 psi

15 - 20 psi

20 - 25 psi

20 / 25

Air dryer systems are useful in preventing what?

Air line fractures

Air line tangles

Air line freeze ups

Air line overheating

21 / 25

The double check valve that supplies the trailer supply valve takes its air from where?

The highest pressure circuit

The lowest pressure circuit

The primary circuit

The secondary circuit

22 / 25

It's important that spring brakes are fully applied before...?

The air supply is fully depleted

The vehicle comes to a complete stop

The parking brake control valve is deployed

The air supply is below 50%

23 / 25

When does the stop light switch come on?

Whenever the engine is turned off

Whenever the brake is applied

Whenever the brake is released

Whenever the vehicle is stationary

24 / 25

The air pressure gauge for an air brake system will be found where?

On the compressor

By the air lines

On the dashboard

On the supply reservoir

25 / 25

Which of these describes the way the spring brake works?

Applied by air pressure, released by air pressure

Applied by air pressure, released by spring pressure

Applied by spring pressure, released by air pressure

Applied by spring pressure, released by spring pressure

Your score is

In Saskatchewan, all drivers operating air-braked vehicles must have an air brake endorsement on their driver’s license. This endorsement requires the driver to pass a written knowledge and practical skills test to ensure they understand how to operate and maintain an air brake system. Furthermore, all commercial vehicles weighing 11,794 kg must have an air brake system installed by law. This is to help reduce accidents caused by brake failure due to driver error or mechanical issues. Regular air brake testing and maintenance ensure drivers can operate their vehicles safely and prevent catastrophic road accidents. As such, the Saskatchewan air brake test and endorsement system aim to promote safer roadways for all road users in the province.

Drivingtest.ca has prepared this Air Brake practice test to assist drivers in understanding air brake systems. This practice test and practical instruction will help drivers operate air brake-equipped vehicles before and after obtaining their Saskatchewan air brake endorsement A.

With information ranging from the essential operation of air brake systems to the use of both single and combination vehicles equipped with air brakes, this practice test includes everything you need to know about driving with air brakes safely and responsibly.

To successfully prepare, consider utilizing these exams and the official Saskatchewan “Air Brake Manual” to your advantage. The more knowledge you can attain, the better it will be for you once you decide to return to the license office to take the air brake license written knowledge test.