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

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

None of these

A foot valve

A switch on the dash

Automatically by the air system

2 / 30

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

The service reservoir

The premier reservoir

The main reservoir

The supply reservoir

3 / 30

Where is the ratio valve installed?

Next to the governor

In the front axle delivery line

Behind the compressor

In front of the supply tank

4 / 30

Do air dryers remove all moisture?

Most of the air hoses

Yes

Depending on the size of the dryer

5 / 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

6 / 30

What is another name for the supply reservoir?

None of these

The service reservoir

The primary reservoir

The wet reservoir

7 / 30

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

It stops over-filling of the reservoirs

It keeps the air flowing to the brake chambers

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 installed near the rear brake chambers to correct brake lag?

A two-way valve

Nothing

A relay valve

A one-way valve

9 / 30

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

The reservoirs are too large

A problem with the governor

Not enough reservoirs

The air hoses are too big

10 / 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

11 / 30

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

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

Any time a brake application is made

12 / 30

What is the purpose of the air dryer?

It dries the air as it reaches the brake chambers

It keeps the hoses clean

It helps to keep the inside of the compressor working efficiently

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

13 / 30

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

The return spring to move

The can shaft to secure

All of these

The push rod to move the slack adjuster

14 / 30

What is the ratio valve designed for?

All of these

For use on dual-air system vehicles

For heavy load vehicles

For tandem trailers

15 / 30

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

A low air warning wig-wag

A low air warning buzzer

A low air warning light

A low air warning bell

16 / 30

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

Cut-out

Pushes

Cut-in

Presses

17 / 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

18 / 30

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

All of these

It improves fuel economy

Because the steering action of the front axle would otherwise interfere

It improves the suspension

19 / 30

What is the function of a quick-release valve?

To rapidly exhaust air from the controlled device

None of these

To quickly remove air from the compressor

To quickly drain the supply tank

20 / 30

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

The size of the brake chambers

Drum thickness

The number of brake chambers

The size of the shoes

21 / 30

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

service reservoir

Low warning switch

Rear-brake limiting valve

Air pressure gauge

22 / 30

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

110 psi

125 psi

150 psi

90 psi

23 / 30

Air is drawn from which reservoir to operate the brakes?

The supply reservoir

The service reservoir

All of them

The wet reservoir

24 / 30

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

Cut-in

Cut-out

Pushes

Presses

25 / 30

The second reservoir is called...

The secondary reservoir

The supply reservoir

The service reservoir

The primary reservoir

26 / 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

Drive at a slower speed

Continue to drive but place your hazard light on

27 / 30

What is attached to the face of the brake shoes?

Brake lining

A lubricant

Carbon

Teflon

28 / 30

Where is the one-way check valve installed?

Between the supply and service reservoirs

In front of the compressor

Next to the governor

Under the foot valve

29 / 30

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

Wig-wag

Mig-mag

Big-wag

Dig-mag

30 / 30

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

The service-brake chambers

The wet tank

The primary reservoir

The secondary reservoir

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Saskatchewan Air Brake Test 03

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