Ontario Air Brake Test 08

As a potential commercial driver in Ontario, it is important to demonstrate proficiency in air brake systems before getting behind the wheel. The Ontario air brake practice test is an invaluable resource in preparing for the required written examination. The test evaluates a candidate’s knowledge of air brake systems, including mechanics, components, and operation. The test also covers safety rules and regulations regarding air brake systems. Taking the practice test is a great way to identify gaps in knowledge and build the skills necessary to succeed on the real examination. With the right preparation and study, passing the Ontario air brake test can unlock exciting new career opportunities and lead to a rewarding career as a commercial driver.


Ontario Air Brake Test 08

1 / 30

What happens when brakes with manual slack adjusters are out of adjustment?

2 / 30

Which statement is false? Long-stroke brake chambers can be identified by the following visible characteristics...

3 / 30

Brake chamber pushrods are generally marked with what?

4 / 30

When testing the low-air warning device, how often should you press and release the brake pedal?

5 / 30

The most common brake chamber size is...

6 / 30

Which statement is false? If you are performing a brake-inspection inspection as part of a practical examination, you must know your vehicle's brake chamber size and type and bring the following items...

7 / 30

What does an air dryer purge also signal?

8 / 30

While inspecting the vehicle, why should you park on level ground?

9 / 30

Automatic slack or brake adjusters are used for...

10 / 30

When inspecting the air-tank drain valves, you should drain the supply tank until what happens?

11 / 30

Brake wear occurs at varying rates, depending on what?

12 / 30

Each air brake chamber's pushrod stroke must not exceed...

13 / 30

What would happen to the vehicle if the driver were operating a vehicle with defects or failing to conduct the required inspections?

14 / 30

While inspecting brake adjustment, the pushrod marks must be...

15 / 30

Can brake-stroke indicators be fitted to the brake linkage?

16 / 30

Which statement is false? Some body design and suspension of some vehicles may limit safe access to the air tanks and drains unless...

17 / 30

When testing the tractor (towing vehicle) protection valve, you should note whether the air exhausts from where?

18 / 30

The type of brake chamber also affects the specified brake adjustment limit, which can vary by how many millimetres between standard and long-stroke brake chambers?

19 / 30

Since adjustment limits vary depending on the size and type of air brake chamber, what must you be able to identify?

20 / 30

Which statement is false? Inspect brake chambers at each wheel for...

21 / 30

What happens to the brake pushrod stroke as the brakes wear?

22 / 30

Which of the following is not a required step for testing the air-tank drain valves?

23 / 30

Who should repair and perform brake re-adjustments on manual slack adjusters?

24 / 30

How many methods are available to measure applied pushrod stroke?

25 / 30

When testing automatic application of the trailer spring brakes and uncertain that the trailer spring brakes have applied, what should you do?

26 / 30

When testing the tractor (towing vehicle) protection valve and are concerned that the vehicle has no anti-compounding valve, what should you do?

27 / 30

Which statement is false? While inspecting brake adjustment, mark the pushrod at the brake chamber or a suitable fixed reference point with what?

28 / 30

When testing air-loss rate, why should you disregard the initial pressure drop?

29 / 30

The most visible and permanent of the markings used to identify long-stroke brake chambers are...

30 / 30

The vehicle fails the air-tank drain valves test when...

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