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 service-brake chambers

The secondary reservoir

The wet tank

2 / 30

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

90 psi

110 psi

125 psi

150 psi

3 / 30

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

Cut-in

Pushes

Presses

Cut-out

4 / 30

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

A one-way valve

A shut-off valve

A pressure valve

A safety valve

5 / 30

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

Cut-in

Presses

Pushes

Cut-out

6 / 30

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

You must stop and determine the cause

Drive at a slower speed

Remove half your load so your vehicle is lighter

Continue to drive but place your hazard light on

7 / 30

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

It keeps the air flowing to the brake chambers

It stops over-filling of the reservoirs

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

It stops the air from over-filling the brake chambers

8 / 30

What is another name for the supply reservoir?

The primary reservoir

None of these

The wet reservoir

The service reservoir

9 / 30

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

Mig-mag

Wig-wag

Dig-mag

Big-wag

10 / 30

Air is drawn from which reservoir to operate the brakes?

The supply reservoir

All of them

The wet reservoir

The service reservoir

11 / 30

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

All of these

It improves the suspension

It improves fuel economy

Because the steering action of the front axle would otherwise interfere

12 / 30

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

All of these

The push rod to move the slack adjuster

The return spring to move

The can shaft to secure

13 / 30

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

The service reservoir

The supply reservoir

The main reservoir

The premier reservoir

14 / 30

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

Improper linings

Adjusted spring adjustors

Thin or distorted drums

Weak return springs

15 / 30

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

A relay valve

A one-way valve

Nothing

A two-way valve

16 / 30

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

None of these

A foot valve

Automatically by the air system

A switch on the dash

17 / 30

What is the ratio valve designed for?

For tandem trailers

For use on dual-air system vehicles

For heavy load vehicles

All of these

18 / 30

What is the purpose of the air dryer?

It dries the air as it reaches the brake chambers

It helps to keep the inside of the compressor working efficiently

It keeps the hoses clean

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

19 / 30

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

Any time a brake application is made

Any time the brakes have stopped the wheels from rotating

Manually when the driver applies pressure to stop the trailer

Any time the brakes do not function properly

20 / 30

What is attached to the face of the brake shoes?

Brake lining

Teflon

Carbon

A lubricant

21 / 30

What is the function of a quick-release valve?

To quickly drain the supply tank

To quickly remove air from the compressor

None of these

To rapidly exhaust air from the controlled device

22 / 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

23 / 30

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

Not enough reservoirs

The reservoirs are too large

The air hoses are too big

A problem with the governor

24 / 30

The second reservoir is called...

The supply reservoir

The primary reservoir

The secondary reservoir

The service reservoir

25 / 30

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

Drum thickness

The size of the brake chambers

The number of brake chambers

The size of the shoes

26 / 30

What happens when reservoir air pressure drops?

The brake chambers force more pressure onto the brake system

The warning system activates

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

27 / 30

Do air dryers remove all moisture?

Most of the air hoses

Yes

Depending on the size of the dryer

28 / 30

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

Low warning switch

Air pressure gauge

Rear-brake limiting valve

service reservoir

29 / 30

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

A low air warning light

A low air warning wig-wag

A low air warning bell

A low air warning buzzer

30 / 30

Where is the ratio valve installed?

In front of the supply tank

In the front axle delivery line

Next to the governor

Behind the compressor

Your score is

Saskatchewan Air Brake Test 03

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