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

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

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

It stops the air from over-filling the brake chambers

It keeps the air flowing to the brake chambers

It stops over-filling of the reservoirs

2 / 30

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

150 psi

90 psi

110 psi

125 psi

3 / 30

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

Cut-out

Cut-in

Pushes

Presses

4 / 30

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

The premier reservoir

The supply reservoir

The main reservoir

The service reservoir

5 / 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

6 / 30

What is the function of a quick-release valve?

To rapidly exhaust air from the controlled device

To quickly drain the supply tank

To quickly remove air from the compressor

None of these

7 / 30

Where is the ratio valve installed?

In the front axle delivery line

In front of the supply tank

Next to the governor

Behind the compressor

8 / 30

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

Any time the brakes have stopped the wheels from rotating

Any time a brake application is made

Manually when the driver applies pressure to stop the trailer

Any time the brakes do not function properly

9 / 30

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

A pressure valve

A safety valve

A shut-off valve

A one-way valve

10 / 30

Where is the one-way check valve installed?

In front of the compressor

Next to the governor

Between the supply and service reservoirs

Under the foot valve

11 / 30

The second reservoir is called...

The supply reservoir

The primary reservoir

The secondary reservoir

The service reservoir

12 / 30

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

Pushes

Presses

Cut-out

Cut-in

13 / 30

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

Big-wag

Mig-mag

Dig-mag

Wig-wag

14 / 30

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

Low warning switch

service reservoir

Air pressure gauge

Rear-brake limiting valve

15 / 30

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

Automatically by the air system

None of these

A foot valve

A switch on the dash

16 / 30

What is attached to the face of the brake shoes?

Carbon

Teflon

Brake lining

A lubricant

17 / 30

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

A relay valve

A one-way valve

A two-way valve

Nothing

18 / 30

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

The reservoirs are too large

Not enough reservoirs

The air hoses are too big

A problem with the governor

19 / 30

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

A low air warning buzzer

A low air warning bell

A low air warning wig-wag

A low air warning light

20 / 30

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

You must stop and determine the cause

Remove half your load so your vehicle is lighter

Continue to drive but place your hazard light on

Drive at a slower speed

21 / 30

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

The service-brake chambers

The primary reservoir

The wet tank

The secondary reservoir

22 / 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

23 / 30

Air is drawn from which reservoir to operate the brakes?

All of them

The supply reservoir

The service reservoir

The wet reservoir

24 / 30

What is another name for the supply reservoir?

The wet reservoir

The primary reservoir

The service reservoir

None of these

25 / 30

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

The push rod to move the slack adjuster

The can shaft to secure

All of these

The return spring to move

26 / 30

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

It improves fuel economy

All of these

It improves the suspension

Because the steering action of the front axle would otherwise interfere

27 / 30

What is the ratio valve designed for?

For heavy load vehicles

All of these

For use on dual-air system vehicles

For tandem trailers

28 / 30

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

Adjusted spring adjustors

Improper linings

Weak return springs

Thin or distorted drums

29 / 30

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

Drum thickness

The number of brake chambers

The size of the shoes

The size of the brake chambers

30 / 30

Do air dryers remove all moisture?

Most of the air hoses

Yes

Depending on the size of the dryer

Your score is

Saskatchewan Air Brake Test 03

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