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

The main reservoir

The supply reservoir

The premier reservoir

The service reservoir

2 / 30

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

Improper linings

Weak return springs

Adjusted spring adjustors

Thin or distorted drums

3 / 30

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

Continue to drive but place your hazard light on

Remove half your load so your vehicle is lighter

Drive at a slower speed

You must stop and determine the cause

4 / 30

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

The service-brake chambers

The secondary reservoir

The wet tank

The primary reservoir

5 / 30

The second reservoir is called...

The primary reservoir

The supply reservoir

The secondary reservoir

The service reservoir

6 / 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

7 / 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 light

A low air warning wig-wag

A low air warning buzzer

8 / 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 the brakes have stopped the wheels from rotating

Any time a brake application is made

9 / 30

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

All of these

The return spring to move

The can shaft to secure

The push rod to move the slack adjuster

10 / 30

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

Presses

Cut-in

Cut-out

Pushes

11 / 30

What is the function of a quick-release valve?

To quickly drain the supply tank

None of these

To rapidly exhaust air from the controlled device

To quickly remove air from the compressor

12 / 30

Where is the ratio valve installed?

In the front axle delivery line

Behind the compressor

Next to the governor

In front of the supply tank

13 / 30

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

Pushes

Cut-in

Cut-out

Presses

14 / 30

What is attached to the face of the brake shoes?

Teflon

Carbon

A lubricant

Brake lining

15 / 30

What is the ratio valve designed for?

For use on dual-air system vehicles

All of these

For heavy load vehicles

For tandem trailers

16 / 30

What happens when reservoir air pressure drops?

The brake chambers force more pressure onto the brake system

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

The warning system activates

17 / 30

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

Dig-mag

Mig-mag

Wig-wag

Big-wag

18 / 30

Air is drawn from which reservoir to operate the brakes?

All of them

The service reservoir

The supply reservoir

The wet reservoir

19 / 30

What is another name for the supply reservoir?

The primary reservoir

The wet reservoir

None of these

The service reservoir

20 / 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

21 / 30

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

The size of the shoes

Drum thickness

The size of the brake chambers

The number of brake chambers

22 / 30

Do air dryers remove all moisture?

Yes

Most of the air hoses

Depending on the size of the dryer

23 / 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

24 / 30

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

Low warning switch

Rear-brake limiting valve

service reservoir

Air pressure gauge

25 / 30

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

110 psi

150 psi

125 psi

90 psi

26 / 30

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

A safety valve

A one-way valve

A pressure valve

A shut-off valve

27 / 30

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

A relay valve

Nothing

A two-way valve

A one-way valve

28 / 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

29 / 30

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

Because the steering action of the front axle would otherwise interfere

All of these

It improves the suspension

It improves fuel economy

30 / 30

Where is the one-way check valve installed?

Next to the governor

Under the foot valve

Between the supply and service reservoirs

In front of the compressor

Your score is

Saskatchewan Air Brake Test 03

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