Ontario Air Brake Test 02

Taking the Ontario air brake practice test is an excellent way to prepare for the actual air brake endorsement test, which is conducted in the presence of an authorized officer.

1 / 30

What is the first tank that the compressed air enters called?

Main tank

First tank

Primary tank

Supply tank

2 / 30

The actual air brake system pressure range must never be higher than...

120 psi

150 psi

145 psi

135 psi

3 / 30

What happens to the moisture collected in the air dryer?

It's expelled with high-pressure air when the compressor reaches cut-out pressure

It evaporates

Nothing

It gets pushed back into the supply tank

4 / 30

What's the purpose of the safety valve in the supply tank?

It forces air to remain in the supply tank

It stops air from escaping back to the supply tank

It will open to allow the excess air pressure to escape

None of the above

5 / 30

What is another name for the supply tank?

Wet tank

Primary tank

Main tank

Dry tank

6 / 30

If the governor fails to signal the compressor to cut-out and too much pressure builds up, what happens?

The driver receives a warning signal on the dashboard

The second governor kicks in

The system shuts down

The safety valves will open to allow the excess air pressure to escape

7 / 30

What happens if the mixture of moisture and oil that collects in the supply tank passes into the rest of the air brake system?

It can damage brake components and interfere with the operation of the system

The engine stalls

It breaks the compressor

It turns off the compressor

8 / 30

When draining the tanks, which tank should always be first?

The secondary tank

It doesn't matter

The primary tank

The supply tank

9 / 30

What prevents the air flow from returning to the supply tank?

A stop valve

None of the above

A foot valve

A one-way check valve

10 / 30

Which of the following are not some of the problems that can occur if the sludge passes through to the rest of the brake system?

It can form a sludge that can pass from the tank into other components of the air brake system, damaging seals and causing brake valves to stick

It can become corrosive and damage the Air-tank and other system components

It can freeze in cold temperatures and may cause brake failure

It can cause the vehicle to come to an abrupt stop

11 / 30

Where are the air tanks located?

Behind the compressor

Under or around the frame of the vehicle

In the cab

Within the engine compartment

12 / 30

What is the purpose of the governor?

To monitor how the air is pushed through the lines

To prevent the compressor from producing too much compressed air and to reduce the load on the engine

To hold back the air pressure before the brakes get too hot

All of the above

13 / 30

What is added to the air that will mix with any moisture or ice present and reduce its tendency to freeze?

High-pressure air

All of the above

A lubricant

An alcohol vapor

14 / 30

A vehicle should only be driven when air pressure is in which range?

Normal

Low

High

It doesn't matter

15 / 30

When air leaves the supply tank, it splits into how many circuits?

Two

One

Four

Three

16 / 30

The primary and secondary air tanks are called dual-service tanks, but what else are they called?

Wet tanks

Useful tanks

Double tanks

Dry tanks

17 / 30

Having two delivery circuits is a safety feature that does what?

It slowly brakes

It warns the driver of impending brake failure

Ensures if one circuit fails, the other circuit will provide enough brake function to stop the vehicle

None of the above

18 / 30

How many separate air pressure gauges can vehicles have?

Two

Four

Unlimited

Three

19 / 30

What happens after air that is pumped by the air compressor passes through the air dryer?

It builds up

It goes trough the one-way valve

It sits in the air lines

It cools and passes through a drying material

20 / 30

Air compressors are generally powered directly by the vehicle's engine or by using what?

Brackets

Pushrods

Belts and pulleys

None of the above

21 / 30

What may also mix with the air that passes through the compressor and settle at the bottom of the tank?

Water

Nothing

Oil

Dirt

22 / 30

Where is an air dryer located?

Inside the compressor

In front of the compressor

Between the air compressor and the supply tank

Next to the governor

23 / 30

What can the collected moisture and oil mixture from the supply tank form?

Rust

Sludge

All of the above

Additional moisture

24 / 30

How often should moisture and oil must be drained from the tanks?

Daily

Every 48 hours

Every 72 hours

Weekly

25 / 30

A drop in air pressure below the normal cut-in setting is a sign of what?

That the air brake system is malfunctioning or that an abnormal demand is being placed on the system

That the brakes are over-heating

That the brake system is working as it should

None of the above

26 / 30

When the air pressure drops to a certain point, what will the governor do?

A warning buzzer happens

It will cause the governor to turn off

It will cause the compressor to start pumping air again

It will cause a warning light to flash

27 / 30

The primary and secondary air tanks are also called...

Double tanks

Dual-service tanks

Duty tanks

Working tanks

28 / 30

Vehicles may use what to reduce the amount of moisture that passes into the air brake system?

A filter

Smaller valves

All of the above

An air dryer

29 / 30

In some cases, how many tanks are housed within one cylinder?

One

Two

Three

Four

30 / 30

What does the air that is drawn in by the air compressor contain?

Nothing

Dirt

Metal fragments

Moisture

Your score is

By WordPress Quiz plugin

The practice test is designed to assess the understanding and knowledge of potential drivers on essential aspects of air brake systems, including operation, maintenance, and safety procedures. It comprises of 25 multiple-choice questions, with a required pass rate of 80% or higher to secure the endorsement. The province’s Ministry of Transportation recommends that drivers take the practice test several times before attempting the actual one to become comfortable with the material. Overall, taking the Ontario air brake practice test is an essential step towards becoming a successful and safe driver with the proper credentials.

Ontario Air Brake Test 02

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