Manitoba Air Brake Test 02

The practice test is designed to simulate the experience of the official exam, providing you with a realistic preview of what to expect. By taking advantage of this resource and mastering the air brake system, you can become a safe and skilled driver on the road. So why risk failing your exam? Take the free practice test today and be confident in your ability to pass with flying colors.

1 / 30

What are safety valves?

Used to add enough air to the system

Used to build up more pressure in the system

Used to prevent over-pressure of the system

Used for the parking brakes

2 / 30

Safety valves normally open at what psi?

150 psi

120 psi

130 psi

140 psi

3 / 30

What is added to the air brake system to help prevent moisture in the system from freezing?

Alcohol vapour

Tablets

Oil

None of the above

4 / 30

Is it unsafe to drive a vehicle when the air pressure is outside the normal operating range?

In poor weather only

Only at highway speeds

Yes

5 / 30

Cut-out pressure is normally how much above the cut-in pressure?

20 to 25 psi

5 to 10 psi

30 to 35 psi

10 to 15 psi

6 / 30

Which statement is false? To avoid being in the direct path of air exhaust from the air brake system, you should be familiar with all the places where the compressed air exhausts, including...

Air-dryer exhaust port

Air-tank drain valves when tanks are being drained

Exhaust ports of brake valves

On or near the supply tanks

7 / 30

How is the moisture drained from the tanks?

Through the air-tank drain valve

By opening up the tank and scooping it out

By vacuuming the tank

By air drying it

8 / 30

To prevent the compressor from producing too much compressed air and to reduce the load on the engine, what is used in the air brake system to help?

A discharge line

A governor

A safety valve

A foot valve

9 / 30

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

145 psi

130 psi

125 psi

110 psi

10 / 30

Why should the supply tank always be drained first?

It's the biggest tank

It's the first and easiest tank to reach

To prevent accumulated moisture flowing into the next tank being drained

It doesn't matter which tank is drained first

11 / 30

What are the primary and secondary tanks referred to as?

The double tanks

The coupling tanks

The user tanks

The dual-service tanks

12 / 30

Air compressors are generally powered directly by what?

The engine

Gasoline

A separate battery away from the engine

A secondary generator

13 / 30

Moisture and oil must be drained from the tanks how often?

Weekly

Every 48 hours

Daily

Every 72 hours

14 / 30

Do vehicles using air dryers still have the air tanks drained regularly?

Yes

Only if a problem exists

Only when inspected by a peace officer

15 / 30

Some older vehicles are equipped with a low-air warning device near the top of the windshield that drops into the driver's view when air pressure drops. What is this?

A toggle

A woggle

A mig mag

A wig wag

16 / 30

When air pressure in either the primary or secondary tank falls below the minimum amount required to bring the vehicle to a safe stop, what warns the driver?

A warning device on the instrument panel will alert the driver

A buzzer sounds from the axles

Nothing happens

A light flashes on the outside of the vehicle

17 / 30

Which are not some of the problems that can occur from the wet tank?

Too much moisture and oil collecting in the air tanks can reduce the volume of air and may cause brake failure

The mixture of moisture and oil can become corrosive and damage the air tank and other system components

The collected moisture and oil mixture can form a sludge that can pass from the tank into other components of the air brake system

Moisture in the brake system remains warm and stops freezing in cold temperatures

18 / 30

The brakes that are used for normal stopping are referred to as...

Primary brakes

Main brakes

Conditional brakes

Service brakes

19 / 30

The air that is drawn in by the air compressor contains what?

Moisture

Plastic particles

Metal fragments

Nothing

20 / 30

Where is an air dryer located?

Under the foot valve

Between the air compressor and the governor

Between the air compressor and the supply tank

Between the supply tank and the secondary tank

21 / 30

Where are the air tanks usually located?

Beside the engine

None of the above

Under or around the frame of the vehicle

Next to the cab

22 / 30

What is another name for the primary and secondary tank?

First tank

Second tank

Push tank

Dry reservoir

23 / 30

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

A solid

Water

Sludge

Nothing

24 / 30

The normal pressure range of an air brake system is determined by the points where the air compressor is turned off. What is this referred to as?

Turn-off pressure

Put-out pressure

Put-in pressure

Cut-out pressure

25 / 30

When air pressure is high enough in the system, what does the governor do?

It causes the compressor to stop pumping air

None of the above

It reduces the flow of air being pumped in

It sends a warning light to the dashboard

26 / 30

What is another name for the supply tank?

Wet tank

Pusher tank

Primary tank

First tank

27 / 30

What is the normal air brake system pressure range?

130 to 150 psi

100 to 120 psi

80 to 90 psi

70 to 80 psi

28 / 30

What do some vehicles use to reduce the amount of moisture that passes into the air brake system?

An air dryer

A filter

A fan

Vents

29 / 30

When does the low air-pressure warning device activate?

Before pressure in either tank falls to 55 psi

Before pressure in either tank falls to 45 psi

Before pressure in either tank falls to 25 psi

Before pressure in either tank falls to 35 psi

30 / 30

When air flows out of the supply tank, what stops it from returning to that tank?

A plug valve

One-way check valves

A stopper valve

A trap valve

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Manitoba Air Brake Test 02

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