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

Where is the ratio valve installed?

Behind the compressor

In front of the supply tank

In the front axle delivery line

Next to the governor

2 / 30

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

The wet tank

The primary reservoir

The service-brake chambers

The secondary reservoir

3 / 30

What is the ratio valve designed for?

All of these

For heavy load vehicles

For use on dual-air system vehicles

For tandem trailers

4 / 30

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

The size of the brake chambers

The number of brake chambers

Drum thickness

The size of the shoes

5 / 30

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

The supply reservoir

The main reservoir

The service reservoir

The premier reservoir

6 / 30

Do air dryers remove all moisture?

Depending on the size of the dryer

Yes

Most of the air hoses

7 / 30

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

Big-wag

Wig-wag

Mig-mag

Dig-mag

8 / 30

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

A switch on the dash

A foot valve

Automatically by the air system

None of these

9 / 30

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

110 psi

150 psi

125 psi

90 psi

10 / 30

What is the purpose of the air dryer?

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

It keeps the hoses clean

It dries the air as it reaches the brake chambers

11 / 30

The second reservoir is called...

The secondary reservoir

The primary reservoir

The service reservoir

The supply reservoir

12 / 30

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

A one-way valve

A relay valve

Nothing

A two-way valve

13 / 30

What is attached to the face of the brake shoes?

Teflon

A lubricant

Carbon

Brake lining

14 / 30

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

Any time the brakes do not function properly

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

15 / 30

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

Cut-out

Pushes

Presses

Cut-in

16 / 30

Air is drawn from which reservoir to operate the brakes?

The supply reservoir

The service reservoir

The wet reservoir

All of them

17 / 30

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

A problem with the governor

Not enough reservoirs

The air hoses are too big

The reservoirs are too large

18 / 30

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

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

It stops the air from over-filling the brake chambers

19 / 30

What is another name for the supply reservoir?

None of these

The service reservoir

The primary reservoir

The wet reservoir

20 / 30

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

A pressure valve

A shut-off valve

A one-way valve

A safety valve

21 / 30

What is the function of a quick-release valve?

To quickly remove air from the compressor

None of these

To quickly drain the supply tank

To rapidly exhaust air from the controlled device

22 / 30

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

It improves fuel economy

Because the steering action of the front axle would otherwise interfere

It improves the suspension

All of these

23 / 30

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

service reservoir

Rear-brake limiting valve

Low warning switch

Air pressure gauge

24 / 30

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

All of these

The can shaft to secure

The push rod to move the slack adjuster

The return spring to move

25 / 30

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

Improper linings

Weak return springs

Thin or distorted drums

Adjusted spring adjustors

26 / 30

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

Remove half your load so your vehicle is lighter

Continue to drive but place your hazard light on

Drive at a slower speed

You must stop and determine the cause

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

Cut-in

Cut-out

Presses

Pushes

29 / 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

30 / 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 brake chambers force more pressure onto the brake system

The spring brakes activates to apply brake pressure

The warning system activates

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Saskatchewan Air Brake Test 03

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