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

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

A one-way valve

A shut-off valve

A safety valve

A pressure valve

2 / 30

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

Pushes

Presses

Cut-out

Cut-in

3 / 30

What is the purpose of the air dryer?

It helps to keep the inside of the compressor working efficiently

It keeps the hoses clean

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

It dries the air as it reaches the brake chambers

4 / 30

Where is the one-way check valve installed?

In front of the compressor

Between the supply and service reservoirs

Under the foot valve

Next to the governor

5 / 30

The second reservoir is called...

The supply reservoir

The service reservoir

The primary reservoir

The secondary reservoir

6 / 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

7 / 30

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

Remove half your load so your vehicle is lighter

Drive at a slower speed

You must stop and determine the cause

Continue to drive but place your hazard light on

8 / 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 size of the shoes

The number of brake chambers

9 / 30

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

The can shaft to secure

The return spring to move

The push rod to move the slack adjuster

All of these

10 / 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

All of these

It improves the suspension

11 / 30

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

Cut-out

Cut-in

Presses

Pushes

12 / 30

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

The main reservoir

The supply reservoir

The premier reservoir

The service reservoir

13 / 30

What is the function of a quick-release valve?

To rapidly exhaust air from the controlled device

To quickly drain the supply tank

None of these

To quickly remove air from the compressor

14 / 30

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

Big-wag

Mig-mag

Wig-wag

Dig-mag

15 / 30

What is the ratio valve designed for?

For use on dual-air system vehicles

For tandem trailers

For heavy load vehicles

All of these

16 / 30

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

The reservoirs are too large

The air hoses are too big

A problem with the governor

Not enough reservoirs

17 / 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

18 / 30

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

Manually when the driver applies pressure to stop the trailer

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

19 / 30

What is attached to the face of the brake shoes?

Brake lining

A lubricant

Carbon

Teflon

20 / 30

What is another name for the supply reservoir?

None of these

The service reservoir

The primary reservoir

The wet reservoir

21 / 30

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

Nothing

A relay valve

A one-way valve

A two-way valve

22 / 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 bell

A low air warning light

23 / 30

Do air dryers remove all moisture?

Most of the air hoses

Yes

Depending on the size of the dryer

24 / 30

Air is drawn from which reservoir to operate the brakes?

The wet reservoir

The supply reservoir

All of them

The service reservoir

25 / 30

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

Air pressure gauge

Rear-brake limiting valve

Low warning switch

service reservoir

26 / 30

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

Adjusted spring adjustors

Thin or distorted drums

Weak return springs

Improper linings

27 / 30

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

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

It keeps the air flowing to the brake chambers

It stops over-filling of the reservoirs

It stops the air from over-filling the brake chambers

28 / 30

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

The wet tank

The primary reservoir

The secondary reservoir

The service-brake chambers

29 / 30

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

150 psi

90 psi

125 psi

110 psi

30 / 30

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

None of these

Automatically by the air system

A foot valve

A switch on the dash

Your score is

Saskatchewan Air Brake Test 03

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