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 the ratio valve designed for?

All of these

For tandem trailers

For use on dual-air system vehicles

For heavy load vehicles

2 / 30

Air is drawn from which reservoir to operate the brakes?

The supply reservoir

The service reservoir

All of them

The wet reservoir

3 / 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

All of these

Because the steering action of the front axle would otherwise interfere

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 buzzer

A low air warning wig-wag

A low air warning light

A low air warning bell

5 / 30

What is attached to the face of the brake shoes?

A lubricant

Brake lining

Carbon

Teflon

6 / 30

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

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

Manually when the driver applies pressure to stop the trailer

7 / 30

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

The wet tank

The secondary reservoir

The service-brake chambers

The primary reservoir

8 / 30

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

150 psi

90 psi

125 psi

110 psi

9 / 30

What happens when reservoir air pressure drops?

The warning system activates

The brake chambers force more pressure onto the brake system

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

10 / 30

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

None of these

A foot valve

A switch on the dash

Automatically by the air system

11 / 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

12 / 30

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

A two-way valve

A one-way valve

A relay valve

Nothing

13 / 30

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

Adjusted spring adjustors

Improper linings

Weak return springs

Thin or distorted drums

14 / 30

Do air dryers remove all moisture?

Yes

Depending on the size of the dryer

Most of the air hoses

15 / 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

16 / 30

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

Cut-in

Cut-out

Pushes

Presses

17 / 30

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

Mig-mag

Dig-mag

Big-wag

Wig-wag

18 / 30

The second reservoir is called...

The service reservoir

The secondary reservoir

The supply reservoir

The primary reservoir

19 / 30

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

Cut-out

Cut-in

Presses

Pushes

20 / 30

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

A shut-off valve

A safety valve

A pressure valve

A one-way valve

21 / 30

Where is the ratio valve installed?

In the front axle delivery line

Next to the governor

In front of the supply tank

Behind the compressor

22 / 30

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

All of these

The push rod to move the slack adjuster

The return spring to move

The can shaft to secure

23 / 30

What is another name for the supply reservoir?

The service reservoir

The primary reservoir

None of these

The wet reservoir

24 / 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 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

25 / 30

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

The air hoses are too big

The reservoirs are too large

A problem with the governor

Not enough reservoirs

26 / 30

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

You must stop and determine the cause

Drive at a slower speed

Remove half your load so your vehicle is lighter

Continue to drive but place your hazard light on

27 / 30

Where is the one-way check valve installed?

Next to the governor

In front of the compressor

Under the foot valve

Between the supply and service reservoirs

28 / 30

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

It stops the air from over-filling the brake chambers

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

29 / 30

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

The service reservoir

The supply reservoir

The premier reservoir

The main reservoir

30 / 30

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

The size of the shoes

The size of the brake chambers

Drum thickness

The number of brake chambers

Your score is

Saskatchewan Air Brake Test 03

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