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

Which statement is false? To alert you when air pressure drops below a safe level, the following is installed...

A low air warning wig-wag

A low air warning buzzer

A low air warning light

A low air warning bell

2 / 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

3 / 30

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

It improves the suspension

All of these

Because the steering action of the front axle would otherwise interfere

It improves fuel economy

4 / 30

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

The size of the shoes

The number of brake chambers

Drum thickness

The size of the brake chambers

5 / 30

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

A two-way valve

A relay valve

A one-way valve

Nothing

6 / 30

What is the ratio valve designed for?

For tandem trailers

For heavy load vehicles

For use on dual-air system vehicles

All of these

7 / 30

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

Big-wag

Wig-wag

Dig-mag

Mig-mag

8 / 30

What is another name for the supply reservoir?

The primary reservoir

None of these

The wet reservoir

The service reservoir

9 / 30

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

The secondary reservoir

The wet tank

The primary reservoir

The service-brake chambers

10 / 30

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

Rear-brake limiting valve

Low warning switch

service reservoir

Air pressure gauge

11 / 30

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

A safety valve

A shut-off valve

A pressure valve

A one-way valve

12 / 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 have stopped the wheels from rotating

Any time a brake application is made

Any time the brakes do not function properly

13 / 30

What happens when reservoir air pressure drops?

The brake chambers force more pressure onto the brake system

The spring brakes activates to apply brake pressure

The warning system activates

The governor puts the compressor back into the pumping stage to keep adequate air pressure available for future brake applications

14 / 30

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

The can shaft to secure

The push rod to move the slack adjuster

The return spring to move

All of these

15 / 30

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

None of these

A switch on the dash

Automatically by the air system

A foot valve

16 / 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 stops over-filling of the reservoirs

It keeps the air flowing to the brake chambers

It stops the air from over-filling the brake chambers

17 / 30

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

The reservoirs are too large

A problem with the governor

Not enough reservoirs

The air hoses are too big

18 / 30

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

The premier reservoir

The main reservoir

The service reservoir

The supply reservoir

19 / 30

Do air dryers remove all moisture?

Most of the air hoses

Yes

Depending on the size of the dryer

20 / 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

21 / 30

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

Weak return springs

Adjusted spring adjustors

Thin or distorted drums

Improper linings

22 / 30

Where is the ratio valve installed?

In the front axle delivery line

Next to the governor

Behind the compressor

In front of the supply tank

23 / 30

What is attached to the face of the brake shoes?

Teflon

Brake lining

Carbon

A lubricant

24 / 30

The second reservoir is called...

The secondary reservoir

The primary reservoir

The supply reservoir

The service reservoir

25 / 30

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

Presses

Pushes

Cut-out

Cut-in

26 / 30

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

110 psi

125 psi

150 psi

90 psi

27 / 30

Air is drawn from which reservoir to operate the brakes?

The service reservoir

The wet reservoir

All of them

The supply reservoir

28 / 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 dries the air as it reaches the brake chambers

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

29 / 30

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

Cut-in

Pushes

Cut-out

Presses

30 / 30

What is the function of a quick-release valve?

None of these

To rapidly exhaust air from the controlled device

To quickly remove air from the compressor

To quickly drain the supply tank

Your score is

Saskatchewan Air Brake Test 03

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