Manitoba Air Brake Test 03

The free Manitoba Air Brake practice test is a smart way to prepare for your official exam and increase your chances of passing with flying colors. The practice test is designed to familiarize you with the type of questions you can expect on the test, identify areas where you need improvement, and build your confidence as you move towards your goal.

1 / 30

Which of the following does a service brake chamber not contain?

A return spring

A flexible rubber disc called a diaphragm

A clevis

A metal rod called a pushrod

2 / 30

How do spring brake chambers apply the brakes?

By means of hydraulic fluid that provides enough force to hold the brakes in the applied position

None of the above

By means of a large coil spring that provides enough force to hold the brakes in the applied position

By means of air pressure that provides enough force to hold the brakes in the applied position

3 / 30

Which statement is false? Vehicles with air brakes must have separate brake systems for...

Emergency braking

Going downgrade

Parking

Normal braking

4 / 30

Before driving the vehicle, what is considered to be enough air pressure to keep the spring brakes from applying?

Between 55 and 65 psi

Between 100 and 110 psi

Between 50 and 60 psi

Between 70 and 80 psi

5 / 30

Air brake chambers are round metal containers, which are located where?

At the steering wheels

At each wheel

At the rear wheels

Beside the primary tank

6 / 30

Disabled or caged spring brake chambers can be recognized how?

By the missing caging bolt

You can't

By the protrusion of the caging bolt or other similar mechanism

By the retractable caging bolt

7 / 30

What happens when a spring brake chamber has been disabled?

The parking and emergency brake will not apply

All brakes will not apply

The parking brake will apply, but not the emergency brake

The emergency brake will apply, but not the parking brake

8 / 30

Why can vehicles still be driven even with the spring brakes applied?

None of the above

They do not have the braking power of the full-service brake application

They are not located on all of the wheels

They release automatically

9 / 30

Almost all commercial vehicles use a type of brake chamber that is held together by what?

S-shafts

Diaphragms

Bolts

A clamp assembly

10 / 30

What happens when stroke exceeds the adjustment limits of a brake chamber?

The drop in brake force can be significant

Brake force increases

Nothing of consequence happens

The drums crack

11 / 30

The motion of the slack adjuster transfers to the brake assembly, causing what?

The brake shoes or pads to make contact with the brake drum or disc

A release of the air pressure

Brake failure or fade

A release of the brakes

12 / 30

When are spring brakes designed to work?

When going downhill

When you are parking your vehicle or in an emergency when your service brakes fail

Only on icy road conditions

At highways speeds

13 / 30

Which statement is false? Where are the places where the compressed air exhausts?

Next to the governor

On or near the vehicle's axles

Air-dryer exhaust port

Exhaust ports of brake valves

14 / 30

How do you supply air to a spring brake control valve with most vehicles?

Moved left

Pushed

Moved right

Pulled

15 / 30

What do the pushrod and slack adjuster do?

They increase the braking force sent to the brakes

They reduce the pressure to the brakes

They control the pressure going to the brake chamber

They link the brake chamber to the brake assembly

16 / 30

Who can perform re-adjustments on automatic slack adjusters?

The carrier

Anyone in the yard

The driver

Only certified technicians

17 / 30

Are you allowed to let the pushrod stroke exceed the adjustment limit?

Only in emergency situations

Only with older vehicles

Yes

18 / 30

Compressed air is converted into what?

Power

More air

Weight

Mechanical force to apply the brakes and stop the vehicle

19 / 30

What do front wheel-limiting valves do?

They control the air flow from the governor

They reduce the force of the service brakes on the front steering axle

None of the above

They maximize the braking pressure required on the front steering axle

20 / 30

How can a technician manually compress or 'cage' the spring in a spring brake chamber?

None of the above

Using a spring bolt

Using a caging bolt

Using a compressing bolt

21 / 30

What is referred to as stroke length?

The distance that the return spring moves out of the chamber

The distance that the pushrod travels into the chamber

The distance that the return spring moves into the chamber

The distance that the pushrod travels out of the chamber

22 / 30

What is another word for compressing the spring?

Doyle

Cramp

Sage

Cage

23 / 30

When air pressure is released, what happens to the pushrod?

It remains in the locked position

Nothing

It is returned to its original position

It moves forward

24 / 30

To release the spring brakes, enough air pressure must be supplied to the spring brake chamber to compress the spring. At what psi?

Between 70-80 psi

25 / 30

What is the level called that helps link the brake chamber to the brake assembly?

None of the above

Pushrod

Clevis pin

Slack adjuster

26 / 30

What should drivers do if they encounter a disabled spring brake chamber?

Travel to short destinations, no further than 160 km

Avoid driving on highways

Have the vehicle inspected and repaired immediately

Drive with hazard lights on

27 / 30

What happens when you press the brake pedal and compressed air fills the service brake chamber?

It fills up the lines and hoses with compressed air

It causes the diaphragm to move and push out the pushrod to apply the brakes

It fills up the reservoirs with compressed air

None of the above

28 / 30

What are the two kinds of air brake chambers called?

Normal and emergency

Service and spring

Primary and secondary

Air and hydraulic

29 / 30

Are spring brakes air applied like service brakes?

Only on older vehicles

Only on fire trucks

Yes

30 / 30

Pushrod stroke is produced by what?

Compressed air entering the brake chamber

Pressure applied to the foot valve

The governor

Manually adjusting the slack adjuster

Your score is

Manitoba Air Brake Test 03

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