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

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

Moved right

Moved left

Pushed

Pulled

2 / 30

What are the two kinds of air brake chambers called?

Primary and secondary

Service and spring

Air and hydraulic

Normal and emergency

3 / 30

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

Normal braking

Emergency braking

Going downgrade

Parking

4 / 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

They release automatically

None of the above

They are not located on all of the wheels

5 / 30

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

Nothing

It moves forward

It is returned to its original position

It remains in the locked position

6 / 30

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

None of the above

Clevis pin

Slack adjuster

Pushrod

7 / 30

What do the pushrod and slack adjuster do?

They control the pressure going to the brake chamber

They reduce the pressure to the brakes

They link the brake chamber to the brake assembly

They increase the braking force sent to the brakes

8 / 30

Are spring brakes air applied like service brakes?

Only on fire trucks

Only on older vehicles

Yes

9 / 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

None of the above

It fills up the reservoirs with compressed air

10 / 30

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

At the steering wheels

At each wheel

Beside the primary tank

At the rear wheels

11 / 30

How do spring brake chambers apply the brakes?

None of the above

By means of hydraulic fluid 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

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

12 / 30

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

A clevis

A return spring

A metal rod called a pushrod

A flexible rubber disc called a diaphragm

13 / 30

Disabled or caged spring brake chambers can be recognized how?

By the missing caging bolt

By the protrusion of the caging bolt or other similar mechanism

You can't

By the retractable caging bolt

14 / 30

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

Brake force increases

The drums crack

The drop in brake force can be significant

Nothing of consequence happens

15 / 30

When are spring brakes designed to work?

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

Only on icy road conditions

When going downhill

At highways speeds

16 / 30

What happens when a spring brake chamber has been disabled?

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

All brakes will not apply

17 / 30

What is another word for compressing the spring?

Doyle

Cage

Sage

Cramp

18 / 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 out of the chamber

The distance that the return spring moves into the chamber

The distance that the pushrod travels into the chamber

19 / 30

Who can perform re-adjustments on automatic slack adjusters?

Anyone in the yard

Only certified technicians

The carrier

The driver

20 / 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

21 / 30

Compressed air is converted into what?

Power

Mechanical force to apply the brakes and stop the vehicle

More air

Weight

22 / 30

What do front wheel-limiting valves do?

None of the above

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

They maximize the braking pressure required on the front steering axle

They control the air flow from the governor

23 / 30

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

Drive with hazard lights on

Travel to short destinations, no further than 160 km

Avoid driving on highways

Have the vehicle inspected and repaired immediately

24 / 30

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

A clamp assembly

Bolts

Diaphragms

S-shafts

25 / 30

Pushrod stroke is produced by what?

Manually adjusting the slack adjuster

The governor

Pressure applied to the foot valve

Compressed air entering the brake chamber

26 / 30

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

Between 70 and 80 psi

Between 50 and 60 psi

Between 100 and 110 psi

Between 55 and 65 psi

27 / 30

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

Next to the governor

Exhaust ports of brake valves

On or near the vehicle's axles

Air-dryer exhaust port

28 / 30

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

Using a compressing bolt

Using a caging bolt

None of the above

Using a spring bolt

29 / 30

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

Only in emergency situations

Yes

Only with older vehicles

30 / 30

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

A release of the brakes

A release of the air pressure

Brake failure or fade

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

Your score is

Manitoba Air Brake Test 03

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