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

What is referred to as stroke length?

The distance that the pushrod travels into the chamber

The distance that the pushrod travels out of the chamber

The distance that the return spring moves into the chamber

The distance that the return spring moves out of the chamber

2 / 30

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

Exhaust ports of brake valves

On or near the vehicle's axles

Air-dryer exhaust port

Next to the governor

3 / 30

What do front wheel-limiting valves do?

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

They control the air flow from the governor

4 / 30

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

Normal braking

Going downgrade

Emergency braking

Parking

5 / 30

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

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

It fills up the lines and hoses with compressed air

None of the above

It fills up the reservoirs with compressed air

6 / 30

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

A release of the brakes

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

A release of the air pressure

Brake failure or fade

7 / 30

How do spring brake chambers apply the brakes?

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

None of the above

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

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

8 / 30

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

None of the above

Slack adjuster

Clevis pin

Pushrod

9 / 30

What happens when a spring brake chamber has been disabled?

The parking brake will apply, but not the emergency brake

The emergency brake will apply, but not the parking brake

All brakes will not apply

The parking and emergency brake will not apply

10 / 30

Compressed air is converted into what?

Weight

Power

Mechanical force to apply the brakes and stop the vehicle

More air

11 / 30

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

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

None of the above

They are not located on all of the wheels

They release automatically

12 / 30

What is another word for compressing the spring?

Sage

Doyle

Cage

Cramp

13 / 30

Disabled or caged spring brake chambers can be recognized how?

By the retractable caging bolt

By the missing caging bolt

You can't

By the protrusion of the caging bolt or other similar mechanism

14 / 30

Pushrod stroke is produced by what?

The governor

Pressure applied to the foot valve

Manually adjusting the slack adjuster

Compressed air entering the brake chamber

15 / 30

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

Nothing

It is returned to its original position

It moves forward

It remains in the locked position

16 / 30

What are the two kinds of air brake chambers called?

Service and spring

Air and hydraulic

Normal and emergency

Primary and secondary

17 / 30

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

Brake force increases

The drop in brake force can be significant

Nothing of consequence happens

The drums crack

18 / 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

19 / 30

What do the pushrod and slack adjuster do?

They increase the braking force sent to the brakes

They link the brake chamber to the brake assembly

They control the pressure going to the brake chamber

They reduce the pressure to the brakes

20 / 30

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

A clamp assembly

Diaphragms

Bolts

S-shafts

21 / 30

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

Between 50 and 60 psi

Between 70 and 80 psi

Between 55 and 65 psi

Between 100 and 110 psi

22 / 30

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

Beside the primary tank

At the steering wheels

At the rear wheels

At each wheel

23 / 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

24 / 30

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

A clevis

A flexible rubber disc called a diaphragm

A metal rod called a pushrod

A return spring

25 / 30

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

Only in emergency situations

Only with older vehicles

Yes

26 / 30

Who can perform re-adjustments on automatic slack adjusters?

The carrier

The driver

Anyone in the yard

Only certified technicians

27 / 30

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

Moved right

Moved left

Pulled

Pushed

28 / 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

29 / 30

When are spring brakes designed to work?

At highways speeds

When going downhill

Only on icy road conditions

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

30 / 30

Are spring brakes air applied like service brakes?

Only on fire trucks

Yes

Only on older vehicles

Your score is

Manitoba Air Brake Test 03

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