Saskatchewan Air Brake Test 03

If you’re interested in obtaining your Saskatchewan Air Brake endorsement, it’s essential to prepare for the official exam thoroughly. One of the best ways to do so is by taking the free practice test that Saskatchewan Government Insurance (SGI) offers. Not only will this test provide you with a comprehensive understanding of the kind of questions you’ll encounter on the actual exam, but it will also help you identify any areas you might need to work on further.

1 / 30

When the brakes are applied, air is delivered through the foot valve to...

The primary reservoir

The secondary reservoir

The service-brake chambers

The wet tank

2 / 30

Which statement is false? Several additions can be made to the basic system to improve it, including...

Rear-brake limiting valve

Low warning switch

Air pressure gauge

service reservoir

3 / 30

What is another name for the supply reservoir?

None of these

The primary reservoir

The wet reservoir

The service reservoir

4 / 30

The second reservoir is called...

The service reservoir

The supply reservoir

The primary reservoir

The secondary reservoir

5 / 30

This safety valve is pre-set, usually at what pressure?

90 psi

110 psi

150 psi

125 psi

6 / 30

What is installed near the rear brake chambers to correct brake lag?

A relay valve

Nothing

A two-way valve

A one-way valve

7 / 30

What is another name for when the governor starts the compressor into its pumping stage?

Cut-in

Presses

Pushes

Cut-out

8 / 30

Older trucks may be equipped with a front wheel limiting valve controlled by what?

Automatically by the air system

A switch on the dash

None of these

A foot valve

9 / 30

Why do front brake assemblies have the brake chamber and slack adjuster mounted on the backing plate?

It improves the suspension

Because the steering action of the front axle would otherwise interfere

All of these

It improves fuel economy

10 / 30

Air is drawn from which reservoir to operate the brakes?

The supply reservoir

The service reservoir

All of them

The wet reservoir

11 / 30

Where is the ratio valve installed?

In the front axle delivery line

Next to the governor

Behind the compressor

In front of the supply tank

12 / 30

The stop light switch is an air-signaled electrical switch which is turned on...

Manually when the driver applies pressure to stop the trailer

Any time a brake application is made

Any time the brakes have stopped the wheels from rotating

Any time the brakes do not function properly

13 / 30

What should you do if the low air warning system activates?

Drive at a slower speed

Continue to drive but place your hazard light on

Remove half your load so your vehicle is lighter

You must stop and determine the cause

14 / 30

The first reservoir is closest to the compressor it is now called...

The service reservoir

The main reservoir

The premier reservoir

The supply reservoir

15 / 30

Do air dryers remove all moisture?

Most of the air hoses

Depending on the size of the dryer

Yes

16 / 30

What is the purpose of the air dryer?

It removes most liquid and water vapour from compressor discharge air before it reaches the air brake reservoirs

It helps to keep the inside of the compressor working efficiently

It dries the air as it reaches the brake chambers

It keeps the hoses clean

17 / 30

What is the function of a quick-release valve?

To quickly drain the supply tank

None of these

To rapidly exhaust air from the controlled device

To quickly remove air from the compressor

18 / 30

What happens when reservoir air pressure drops?

The governor puts the compressor back into the pumping stage to keep adequate air pressure available for future brake applications

The spring brakes activates to apply brake pressure

The brake chambers force more pressure onto the brake system

The warning system activates

19 / 30

Air pushes against each service-brake diaphragm causing what to happen?

All of these

The can shaft to secure

The return spring to move

The push rod to move the slack adjuster

20 / 30

Where is the one-way check valve installed?

Next to the governor

Between the supply and service reservoirs

Under the foot valve

In front of the compressor

21 / 30

What determines the amount of heat that can be absorbed and dissipated to the atmosphere?

The number of brake chambers

The size of the brake chambers

Drum thickness

The size of the shoes

22 / 30

If a safety valve blows off excess pressure, what does this mean?

The air hoses are too big

The reservoirs are too large

Not enough reservoirs

A problem with the governor

23 / 30

Which statement is false? The following will result in erratic, unpredictable and potentially dangerous brake performance.

Weak return springs

Thin or distorted drums

Adjusted spring adjustors

Improper linings

24 / 30

What is the ratio valve designed for?

For use on dual-air system vehicles

All of these

For heavy load vehicles

For tandem trailers

25 / 30

What is attached to the face of the brake shoes?

Brake lining

Carbon

Teflon

A lubricant

26 / 30

What is another name for when the governor takes the compressor out of its pumping stage?

Cut-in

Pushes

Presses

Cut-out

27 / 30

Which statement is false? To alert you when air pressure drops below a safe level, the following is installed...

A low air warning bell

A low air warning buzzer

A low air warning light

A low air warning wig-wag

28 / 30

What is A low-pressure warning device that drops into driver view called?

Mig-mag

Wig-wag

Big-wag

Dig-mag

29 / 30

The supply reservoir is protected from being over-pressurized and bursting by what?

A shut-off valve

A pressure valve

A safety valve

A one-way valve

30 / 30

What's the purpose of a one-way check valve?

It stops the air from over-filling the brake chambers

It keeps the air flowing to the brake chambers

To keep air from bleeding back from the supply to the service reservoir

It stops over-filling of the reservoirs

Your score is

Saskatchewan Air Brake Test 03

About

Practice Tests

Getting a License

Get In Touch