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

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

Not enough reservoirs

The air hoses are too big

The reservoirs are too large

A problem with the governor

2 / 30

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

The primary reservoir

The wet tank

The secondary reservoir

The service-brake chambers

3 / 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 light

A low air warning wig-wag

A low air warning bell

4 / 30

Where is the one-way check valve installed?

Under the foot valve

Between the supply and service reservoirs

In front of the compressor

Next to the governor

5 / 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 keeps the hoses clean

It dries the air as it reaches the brake chambers

It helps to keep the inside of the compressor working efficiently

6 / 30

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

Low warning switch

Air pressure gauge

Rear-brake limiting valve

service reservoir

7 / 30

What is attached to the face of the brake shoes?

Carbon

Brake lining

A lubricant

Teflon

8 / 30

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

It keeps the air flowing to the brake chambers

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

9 / 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

10 / 30

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

The can shaft to secure

All of these

The push rod to move the slack adjuster

The return spring to move

11 / 30

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

Presses

Cut-out

Pushes

Cut-in

12 / 30

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

The service reservoir

The main reservoir

The supply reservoir

The premier reservoir

13 / 30

What is the function of a quick-release valve?

To quickly remove air from the compressor

To rapidly exhaust air from the controlled device

To quickly drain the supply tank

None of these

14 / 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 warning system activates

The spring brakes activates to apply brake pressure

The brake chambers force more pressure onto the brake system

15 / 30

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

It improves fuel economy

It improves the suspension

Because the steering action of the front axle would otherwise interfere

All of these

16 / 30

What is the ratio valve designed for?

For heavy load vehicles

All of these

For tandem trailers

For use on dual-air system vehicles

17 / 30

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

Pushes

Presses

Cut-in

Cut-out

18 / 30

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

Mig-mag

Wig-wag

Big-wag

Dig-mag

19 / 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 a brake application is made

Any time the brakes have stopped the wheels from rotating

Manually when the driver applies pressure to stop the trailer

20 / 30

Where is the ratio valve installed?

Next to the governor

In front of the supply tank

In the front axle delivery line

Behind the compressor

21 / 30

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

A pressure valve

A safety valve

A one-way valve

A shut-off valve

22 / 30

Do air dryers remove all moisture?

Most of the air hoses

Yes

Depending on the size of the dryer

23 / 30

The second reservoir is called...

The primary reservoir

The service reservoir

The supply reservoir

The secondary reservoir

24 / 30

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

A one-way valve

A two-way valve

A relay valve

Nothing

25 / 30

What is another name for the supply reservoir?

None of these

The primary reservoir

The service reservoir

The wet reservoir

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

You must stop and determine the cause

Drive at a slower speed

27 / 30

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

Automatically by the air system

A switch on the dash

None of these

A foot valve

28 / 30

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

150 psi

90 psi

125 psi

110 psi

29 / 30

Air is drawn from which reservoir to operate the brakes?

All of them

The wet reservoir

The supply reservoir

The service reservoir

30 / 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 brake chambers

The size of the shoes

Your score is

Saskatchewan Air Brake Test 03

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