Ontario Air Brake Test 05

Taking the Ontario air brake practice test is an essential step for anyone seeking to obtain a commercial driver’s license in the province. This test assesses the knowledge of individuals on air brake systems and how to use them in real-world scenarios. The test comprises of multiple choice questions, which cover topics such as air brake system components, maintenance, and emergency procedures. It is essential for individuals to familiarize themselves adequately with the content of the air brake test using the official study guide, as it contains critical information that they will need to pass the assessment. Additionally, taking practice tests can help to identify areas of weakness and provide an opportunity for improvement. By faithfully following the guidelines provided in the official study material and practicing regularly, individuals can increase their chances of success on the actual Ontario air brake test.

1 / 30

Can an air brake system be designed to work with several designs of foundation brake subsystems, even on the same vehicle?

Depends on the age of the vehicle

Not

Yes

Depends on the type of vehicle

2 / 30

What is the problem of overloading a vehicle?

It can cause it to lose its braking ability

More difficult to use the mirrors

Takes longer to accelerate

All of the above

3 / 30

When pushrod stroke exceeds the adjustment limit, what does this mean?

The brakes are out of adjustment

The brakes will fail

It can cause a flat tire

The brakes will need to be replaced

4 / 30

Which statement is false? The air pressure may drop due to one of the following reasons...

The generator keeps running

The trailer supply line becomes disconnected for some reason

The trailer supply line ruptures

The driver parks the vehicle and closes the trailer supply valve

5 / 30

For wedge brakes, the stroke of the brake chamber pushrod slides a wedge between the brake shoes, forcing them where?

Outward against the drum

Inward to the shoes

None of the above

Outward toward the rotor

6 / 30

Which statement is false? The following components are much easier to see and identify on S-cam brakes

Slack adjuster

Pushrod

Camshaft rollers

The shaft portion of the 'S' camshaft

7 / 30

What happens when a wheel locks and a tire skids?

All of the above

A vehicle makes an abrupt stop

A vehicle loses steering control and directional stability

The tire goes flat

8 / 30

Which statement is false? The vehicle loses some of its ability to stop during the following conditions...

Uphill grades

Heavier loads

Long downhill grades

Higher speeds

9 / 30

Is full brake capacity often needed during normal conditions?

Always

Only during wet conditions

Only with full loads

10 / 30

Is your speed is doubled, the stopping distance is...

Doubled

Quadrupled

The same

Tripled

11 / 30

What are anti-lock braking systems (ABS) designed to do?

It will sense the speed of the wheels on a vehicle when an abnormal drop in wheel speed, causing the brake force to be reduced to that wheel

None of the above

To shorten the stop in an emergency

It allows the brakes to be pumped to come to a stop

12 / 30

Which of the following is not a component of the S-cam air brakes?

Brake shoes

Brake drums

Pushrods

Calipers

13 / 30

If the vehicle weight is doubled, the stopping distance is...

Tripled

Doubled

Quadrupled

The same

14 / 30

Can trailers with spring brake priority be towed without waiting for the service brake air tanks to fill?

Only at low speed

Only on private property until the tanks fill

Yes

15 / 30

Where are many of the parts of an 'S' cam brake located?

On the axle

None of the above

In the wheel

Above the wheel

16 / 30

Is it likely that you will notice a small loss of braking ability during normal driving?

Only during poor weather conditions

Very likely

Not likely

Remotely

17 / 30

Which of the following is not a factor that affect how your vehicle's brakes work?

Anti-lock braking systems

The speed and weight of your vehicle

Brake adjustment

The type of load being carried

18 / 30

What happens to the brake force produced at a wheel when the stroke of its brake chamber pushrod becomes excessive?

It increases significantly

It drops significantly

It becomes intermittent

It remains the same

19 / 30

The Ontario Highway Traffic Act and regulations require vehicles with air brakes to be checked at least...

Every 48 hours

Three tires daily

Weekly

Daily

20 / 30

To prevent all of the air from being lost, the trailer supply valve is designed to do what?

Close automatically

Close partially

Jam

Warn the driver

21 / 30

What is the purpose of the brake spider?

It houses the brake chambers

It serves as the main mounting base for the brake shoes

It holds the brake rotors in place

It connects the slack adjuster to the pushrod

22 / 30

On disc brakes, the brake rotor is only partially visible because the wheel, caliper and what else is covering it?

Dust shields

Tires

Nothing

Wheel hubs

23 / 30

Which of the following is not a component of disc air brakes?

Brake pads

Return springs

Rotors

Calipers

24 / 30

Can brake temperatures become so severe they cause damage to brake components?

Yes

Only if brake parts are missing

Only if brake parts are old

25 / 30

As brake components heat up, you may experience a reduction in their effectiveness and find that you need to press harder on the brake pedal to develop enough brake force. This is known as...

Downforce

None of the above

Brake fade

Relapse

26 / 30

What do anchor springs do?

They push the spring brakes back in position

They clear the brake chambers

They hold the brake shoes in position at the anchor end

None of the above

27 / 30

Which is not a type of foundation brake?

Disc brakes

S-cam brakes

Wedge brakes

Cable brakes

28 / 30

What controls the tractor protection valve?

None of the above

The foot valve

The trailer supply valve

The driver

29 / 30

If you double your vehicle weight and double your speed, how much does your stopping distance increases by?

Eight times

Five times

Four times

Six times

30 / 30

What will ensure that the brake chamber always produces the necessary force?

Properly inflated tires

Proper brake adjustment

Bigger compressor

Higher rpm on the engine

Your score is

Ontario Air Brake Test 05

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