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 starts the compressor into its pumping stage?

Cut-in

Cut-out

Pushes

Presses

2 / 30

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

The air hoses are too big

A problem with the governor

Not enough reservoirs

The reservoirs are too large

3 / 30

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

Any time the brakes do not function properly

Manually when the driver applies pressure to stop the trailer

Any time a brake application is made

Any time the brakes have stopped the wheels from rotating

4 / 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 light

A low air warning buzzer

A low air warning bell

5 / 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

6 / 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

7 / 30

What is the ratio valve designed for?

For tandem trailers

For use on dual-air system vehicles

For heavy load vehicles

All of these

8 / 30

Air is drawn from which reservoir to operate the brakes?

All of them

The wet reservoir

The supply reservoir

The service reservoir

9 / 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

10 / 30

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

Adjusted spring adjustors

Improper linings

Thin or distorted drums

Weak return springs

11 / 30

What is another name for the supply reservoir?

None of these

The service reservoir

The wet reservoir

The primary reservoir

12 / 30

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

The push rod to move the slack adjuster

The return spring to move

The can shaft to secure

All of these

13 / 30

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

The service-brake chambers

The primary reservoir

The wet tank

The secondary reservoir

14 / 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

15 / 30

Do air dryers remove all moisture?

Depending on the size of the dryer

Yes

Most of the air hoses

16 / 30

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

It stops over-filling of the reservoirs

It stops the air from over-filling the brake chambers

It keeps the air flowing to the brake chambers

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

17 / 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

18 / 30

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

The main reservoir

The premier reservoir

The supply reservoir

The service reservoir

19 / 30

What is the function of a quick-release valve?

None of these

To quickly remove air from the compressor

To rapidly exhaust air from the controlled device

To quickly drain the supply tank

20 / 30

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

Wig-wag

Dig-mag

Mig-mag

Big-wag

21 / 30

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

service reservoir

Low warning switch

Air pressure gauge

Rear-brake limiting valve

22 / 30

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

150 psi

110 psi

90 psi

125 psi

23 / 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 brake chambers force more pressure onto the brake system

The warning system activates

The spring brakes activates to apply brake pressure

24 / 30

Where is the ratio valve installed?

In front of the supply tank

In the front axle delivery line

Behind the compressor

Next to the governor

25 / 30

What is attached to the face of the brake shoes?

A lubricant

Teflon

Brake lining

Carbon

26 / 30

Where is the one-way check valve installed?

Between the supply and service reservoirs

In front of the compressor

Next to the governor

Under the foot valve

27 / 30

The second reservoir is called...

The service reservoir

The primary reservoir

The secondary reservoir

The supply reservoir

28 / 30

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

Cut-in

Cut-out

Presses

Pushes

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

It improves fuel economy

All of these

It improves the suspension

30 / 30

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

A one-way valve

A safety valve

A shut-off valve

A pressure valve

Your score is

Saskatchewan Air Brake Test 03

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