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 second reservoir is called...

The service reservoir

The supply reservoir

The primary reservoir

The secondary reservoir

2 / 30

Air is drawn from which reservoir to operate the brakes?

The supply reservoir

All of them

The wet reservoir

The service reservoir

3 / 30

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

The air hoses are too big

Not enough reservoirs

The reservoirs are too large

A problem with the governor

4 / 30

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

The size of the brake chambers

Drum thickness

The size of the shoes

The number of brake chambers

5 / 30

What is the purpose of the air dryer?

It keeps the hoses clean

It dries the air as it reaches the brake chambers

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 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

7 / 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

8 / 30

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

A one-way valve

A shut-off valve

A pressure valve

A safety valve

9 / 30

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

Cut-out

Cut-in

Pushes

Presses

10 / 30

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

Drive at a slower speed

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

11 / 30

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

Automatically by the air system

A foot valve

None of these

A switch on the dash

12 / 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

13 / 30

Do air dryers remove all moisture?

Depending on the size of the dryer

Yes

Most of the air hoses

14 / 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

15 / 30

What is another name for the supply reservoir?

None of these

The primary reservoir

The service reservoir

The wet reservoir

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 keeps the air flowing to the brake chambers

It stops over-filling of the reservoirs

It stops the air from over-filling the brake chambers

17 / 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

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 bell

A low air warning light

A low air warning wig-wag

A low air warning buzzer

19 / 30

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

Presses

Cut-out

Pushes

Cut-in

20 / 30

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

125 psi

90 psi

150 psi

110 psi

21 / 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

22 / 30

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

Improper linings

Thin or distorted drums

Weak return springs

Adjusted spring adjustors

23 / 30

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

The primary reservoir

The wet tank

The service-brake chambers

The secondary reservoir

24 / 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 warning system activates

The spring brakes activates to apply brake pressure

25 / 30

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

service reservoir

Rear-brake limiting valve

Air pressure gauge

Low warning switch

26 / 30

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

All of these

It improves fuel economy

It improves the suspension

Because the steering action of the front axle would otherwise interfere

27 / 30

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

Wig-wag

Mig-mag

Big-wag

Dig-mag

28 / 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

29 / 30

Where is the one-way check valve installed?

In front of the compressor

Next to the governor

Under the foot valve

Between the supply and service reservoirs

30 / 30

What is attached to the face of the brake shoes?

Teflon

A lubricant

Carbon

Brake lining

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Saskatchewan Air Brake Test 03

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