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

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 50 and 60 psi

Between 70 and 80 psi

Between 100 and 110 psi

2 / 30

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

At each wheel

At the steering wheels

Beside the primary tank

At the rear wheels

3 / 30

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

Only with older vehicles

Only in emergency situations

Yes

4 / 30

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

Slack adjuster

None of the above

Pushrod

Clevis pin

5 / 30

What happens when a spring brake chamber has been disabled?

All brakes will not apply

The parking brake will apply, but not the emergency brake

The parking and emergency brake will not apply

The emergency brake will apply, but not the parking brake

6 / 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

7 / 30

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

On or near the vehicle's axles

Exhaust ports of brake valves

Air-dryer exhaust port

Next to the governor

8 / 30

Who can perform re-adjustments on automatic slack adjusters?

Anyone in the yard

The driver

Only certified technicians

The carrier

9 / 30

What do front wheel-limiting valves do?

They maximize the braking pressure required on the front steering axle

They control the air flow from the governor

None of the above

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

10 / 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

11 / 30

What are the two kinds of air brake chambers called?

Air and hydraulic

Normal and emergency

Primary and secondary

Service and spring

12 / 30

Are spring brakes air applied like service brakes?

Only on older vehicles

Yes

Only on fire trucks

13 / 30

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

Using a spring bolt

None of the above

Using a caging bolt

Using a compressing bolt

14 / 30

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

It remains in the locked position

It is returned to its original position

It moves forward

Nothing

15 / 30

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

They are not located on all of the wheels

They release automatically

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

None of the above

16 / 30

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

Brake failure or fade

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

A release of the brakes

A release of the air pressure

17 / 30

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

A flexible rubber disc called a diaphragm

A metal rod called a pushrod

A return spring

A clevis

18 / 30

When are spring brakes designed to work?

At highways speeds

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

When going downhill

Only on icy road conditions

19 / 30

Compressed air is converted into what?

More air

Power

Mechanical force to apply the brakes and stop the vehicle

Weight

20 / 30

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

Pulled

Moved right

Moved left

Pushed

21 / 30

What is referred to as stroke length?

The distance that the return spring moves into the chamber

The distance that the pushrod travels into the chamber

The distance that the return spring moves out of the chamber

The distance that the pushrod travels out of the chamber

22 / 30

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

The drop in brake force can be significant

The drums crack

Nothing of consequence happens

Brake force increases

23 / 30

Disabled or caged spring brake chambers can be recognized how?

By the retractable caging bolt

By the protrusion of the caging bolt or other similar mechanism

By the missing caging bolt

You can't

24 / 30

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

A clamp assembly

Diaphragms

Bolts

S-shafts

25 / 30

How do spring brake chambers apply the brakes?

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

None of the above

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

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

26 / 30

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

It fills up the reservoirs with compressed air

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

None of the above

It fills up the lines and hoses with compressed air

27 / 30

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

Emergency braking

Going downgrade

Normal braking

Parking

28 / 30

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

Drive with hazard lights on

Have the vehicle inspected and repaired immediately

Travel to short destinations, no further than 160 km

Avoid driving on highways

29 / 30

Pushrod stroke is produced by what?

Compressed air entering the brake chamber

Manually adjusting the slack adjuster

Pressure applied to the foot valve

The governor

30 / 30

What is another word for compressing the spring?

Doyle

Sage

Cage

Cramp

Your score is

Manitoba Air Brake Test 03

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