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 wet tank

The secondary reservoir

The service-brake chambers

The primary reservoir

2 / 30

Where is the one-way check valve installed?

Under the foot valve

In front of the compressor

Next to the governor

Between the supply and service reservoirs

3 / 30

Air is drawn from which reservoir to operate the brakes?

The service reservoir

All of them

The supply reservoir

The wet reservoir

4 / 30

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

150 psi

110 psi

90 psi

125 psi

5 / 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

6 / 30

What is the ratio valve designed for?

For heavy load vehicles

For tandem trailers

All of these

For use on dual-air system vehicles

7 / 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 do not function properly

Manually when the driver applies pressure to stop the trailer

Any time the brakes have stopped the wheels from rotating

8 / 30

What happens when reservoir air pressure drops?

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

The brake chambers force more pressure onto the brake system

9 / 30

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

It stops the air from over-filling the brake chambers

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

It stops over-filling of the reservoirs

It keeps the air flowing to the brake chambers

10 / 30

What is the function of a quick-release valve?

To rapidly exhaust air from the controlled device

To quickly remove air from the compressor

None of these

To quickly drain the supply tank

11 / 30

Do air dryers remove all moisture?

Most of the air hoses

Depending on the size of the dryer

Yes

12 / 30

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

The size of the shoes

The number of brake chambers

Drum thickness

The size of the brake chambers

13 / 30

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

Cut-out

Presses

Cut-in

Pushes

14 / 30

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

Drive at a slower speed

You must stop and determine the cause

Continue to drive but place your hazard light on

Remove half your load so your vehicle is lighter

15 / 30

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

Mig-mag

Big-wag

Wig-wag

Dig-mag

16 / 30

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

A two-way valve

Nothing

A relay valve

A one-way valve

17 / 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 buzzer

A low air warning bell

A low air warning wig-wag

18 / 30

Where is the ratio valve installed?

In front of the supply tank

In the front axle delivery line

Behind the compressor

Next to the governor

19 / 30

What is attached to the face of the brake shoes?

A lubricant

Teflon

Carbon

Brake lining

20 / 30

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

Weak return springs

Thin or distorted drums

Improper linings

Adjusted spring adjustors

21 / 30

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

The supply reservoir

The premier reservoir

The main reservoir

The service reservoir

22 / 30

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

Low warning switch

Rear-brake limiting valve

Air pressure gauge

service reservoir

23 / 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

24 / 30

What is another name for the supply reservoir?

The service reservoir

The wet reservoir

The primary reservoir

None of these

25 / 30

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

Cut-in

Pushes

Presses

Cut-out

26 / 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

27 / 30

What is the purpose of the air dryer?

It keeps the hoses clean

It dries the air as it reaches the brake chambers

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

28 / 30

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

The air hoses are too big

The reservoirs are too large

A problem with the governor

Not enough reservoirs

29 / 30

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

The push rod to move the slack adjuster

The return spring to move

The can shaft to secure

All of these

30 / 30

The second reservoir is called...

The supply reservoir

The secondary reservoir

The primary reservoir

The service reservoir

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Saskatchewan Air Brake Test 03

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