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

Pushes

Presses

Cut-out

Cut-in

2 / 30

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

The return spring to move

The can shaft to secure

The push rod to move the slack adjuster

All of these

3 / 30

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

A problem with the governor

The air hoses are too big

Not enough reservoirs

The reservoirs are too large

4 / 30

Air is drawn from which reservoir to operate the brakes?

All of them

The wet reservoir

The supply reservoir

The service reservoir

5 / 30

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

150 psi

90 psi

110 psi

125 psi

6 / 30

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

Mig-mag

Wig-wag

Dig-mag

Big-wag

7 / 30

Where is the one-way check valve installed?

In front of the compressor

Next to the governor

Under the foot valve

Between the supply and service reservoirs

8 / 30

What happens when reservoir air pressure drops?

The warning system activates

The spring brakes activates to apply brake pressure

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

9 / 30

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

It stops the air from over-filling the brake chambers

It stops over-filling of the reservoirs

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

It keeps the air flowing to the brake chambers

10 / 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

11 / 30

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

Cut-in

Presses

Pushes

Cut-out

12 / 30

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

Air pressure gauge

service reservoir

Low warning switch

Rear-brake limiting valve

13 / 30

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

The premier reservoir

The main reservoir

The supply reservoir

The service reservoir

14 / 30

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

Automatically by the air system

A foot valve

A switch on the dash

None of these

15 / 30

The second reservoir is called...

The supply reservoir

The secondary reservoir

The service reservoir

The primary reservoir

16 / 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 wig-wag

A low air warning light

A low air warning bell

17 / 30

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

Thin or distorted drums

Weak return springs

Adjusted spring adjustors

Improper linings

18 / 30

Do air dryers remove all moisture?

Yes

Depending on the size of the dryer

Most of the air hoses

19 / 30

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

A shut-off valve

A safety valve

A pressure valve

A one-way valve

20 / 30

What is attached to the face of the brake shoes?

Carbon

Teflon

Brake lining

A lubricant

21 / 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

The size of the shoes

Drum thickness

22 / 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

Any time the brakes have stopped the wheels from rotating

Manually when the driver applies pressure to stop the trailer

23 / 30

What is the purpose of the air dryer?

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

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

24 / 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

It improves the suspension

Because the steering action of the front axle would otherwise interfere

25 / 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

26 / 30

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

You must stop and determine the cause

Continue to drive but place your hazard light on

Drive at a slower speed

Remove half your load so your vehicle is lighter

27 / 30

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

A relay valve

A two-way valve

Nothing

A one-way valve

28 / 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

29 / 30

What is another name for the supply reservoir?

The primary reservoir

None of these

The wet reservoir

The service reservoir

30 / 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

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Saskatchewan Air Brake Test 03

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