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 another word for compressing the spring?

Cage

Doyle

Cramp

Sage

2 / 30

What is referred to as stroke length?

The distance that the pushrod travels out of 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 return spring moves into the chamber

3 / 30

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

A release of the air pressure

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

A release of the brakes

Brake failure or fade

4 / 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

5 / 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 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

6 / 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 are not located on all of the wheels

They release automatically

None of the above

7 / 30

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

Diaphragms

S-shafts

A clamp assembly

Bolts

8 / 30

Disabled or caged spring brake chambers can be recognized how?

By the protrusion of the caging bolt or other similar mechanism

By the retractable caging bolt

By the missing caging bolt

You can't

9 / 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

10 / 30

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

Emergency braking

Parking

Normal braking

Going downgrade

11 / 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

12 / 30

What do front wheel-limiting valves do?

They control the air flow from the governor

They maximize the braking pressure required on the front steering axle

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

None of the above

13 / 30

Who can perform re-adjustments on automatic slack adjusters?

Only certified technicians

Anyone in the yard

The carrier

The driver

14 / 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

None of the above

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

15 / 30

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

None of the above

Clevis pin

Pushrod

Slack adjuster

16 / 30

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

Avoid driving on highways

Have the vehicle inspected and repaired immediately

Drive with hazard lights on

Travel to short destinations, no further than 160 km

17 / 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

18 / 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

19 / 30

When are spring brakes designed to work?

Only on icy road conditions

When going downhill

At highways speeds

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

20 / 30

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

Nothing

It remains in the locked position

It moves forward

It is returned to its original position

21 / 30

Are spring brakes air applied like service brakes?

Yes

Only on fire trucks

Only on older vehicles

22 / 30

Compressed air is converted into what?

Mechanical force to apply the brakes and stop the vehicle

More air

Power

Weight

23 / 30

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

Moved right

Pushed

Moved left

Pulled

24 / 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

25 / 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 100 and 110 psi

Between 55 and 65 psi

Between 70 and 80 psi

26 / 30

What are the two kinds of air brake chambers called?

Air and hydraulic

Service and spring

Primary and secondary

Normal and emergency

27 / 30

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

Only in emergency situations

Yes

Only with older vehicles

28 / 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 compressing bolt

Using a caging bolt

29 / 30

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

Exhaust ports of brake valves

Next to the governor

On or near the vehicle's axles

Air-dryer exhaust port

30 / 30

What happens when a spring brake chamber has been disabled?

The emergency brake will apply, but not the parking brake

The parking and emergency brake will not apply

The parking brake will apply, but not the emergency brake

All brakes will not apply

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Manitoba Air Brake Test 03

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