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

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

The secondary reservoir

The primary reservoir

The service-brake chambers

The wet tank

2 / 30

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

The return spring to move

The can shaft to secure

The push rod to move the slack adjuster

All of these

3 / 30

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

Air pressure gauge

service reservoir

Rear-brake limiting valve

Low warning switch

4 / 30

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

The number of brake chambers

The size of the shoes

Drum thickness

The size of the brake chambers

5 / 30

What is another name for the supply reservoir?

The service reservoir

The primary reservoir

None of these

The wet reservoir

6 / 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

7 / 30

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

150 psi

125 psi

90 psi

110 psi

8 / 30

Do air dryers remove all moisture?

Depending on the size of the dryer

Most of the air hoses

Yes

9 / 30

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

Cut-out

Pushes

Cut-in

Presses

10 / 30

The second reservoir is called...

The primary reservoir

The service reservoir

The secondary reservoir

The supply reservoir

11 / 30

What is the ratio valve designed for?

All of these

For heavy load vehicles

For use on dual-air system vehicles

For tandem trailers

12 / 30

What is the purpose of the air dryer?

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

It dries the air as it reaches the brake chambers

13 / 30

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

Drive at a slower speed

You must stop and determine the cause

Continue to drive but place your hazard light on

Remove half your load so your vehicle is lighter

14 / 30

Where is the ratio valve installed?

In front of the supply tank

In the front axle delivery line

Next to the governor

Behind the compressor

15 / 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

16 / 30

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

It keeps the air flowing to the brake chambers

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

17 / 30

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

Wig-wag

Dig-mag

Big-wag

Mig-mag

18 / 30

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

A low air warning light

A low air warning wig-wag

A low air warning buzzer

A low air warning bell

19 / 30

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

The supply reservoir

The service reservoir

The premier reservoir

The main reservoir

20 / 30

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

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

Manually when the driver applies pressure to stop the trailer

21 / 30

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

Presses

Cut-in

Cut-out

Pushes

22 / 30

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

Automatically by the air system

A foot valve

A switch on the dash

None of these

23 / 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

24 / 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

It improves the suspension

All of these

25 / 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

26 / 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

27 / 30

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

Weak return springs

Thin or distorted drums

Improper linings

Adjusted spring adjustors

28 / 30

Air is drawn from which reservoir to operate the brakes?

The service reservoir

The supply reservoir

All of them

The wet reservoir

29 / 30

What is attached to the face of the brake shoes?

Carbon

Teflon

A lubricant

Brake lining

30 / 30

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

Nothing

A two-way valve

A one-way valve

A relay valve

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Saskatchewan Air Brake Test 03

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