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

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

Only in emergency situations

Yes

Only with older vehicles

2 / 30

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

Parking

Emergency braking

Going downgrade

Normal braking

3 / 30

What is another word for compressing the spring?

Cramp

Doyle

Sage

Cage

4 / 30

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

Have the vehicle inspected and repaired immediately

Travel to short destinations, no further than 160 km

Drive with hazard lights on

Avoid driving on highways

5 / 30

Disabled or caged spring brake chambers can be recognized how?

By the retractable caging bolt

By the missing caging bolt

By the protrusion of the caging bolt or other similar mechanism

You can't

6 / 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

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

None of the above

7 / 30

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

Moved right

Pushed

Pulled

Moved left

8 / 30

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

Between 100 and 110 psi

Between 55 and 65 psi

Between 70 and 80 psi

Between 50 and 60 psi

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

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

Diaphragms

S-shafts

Bolts

A clamp assembly

11 / 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

12 / 30

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

A metal rod called a pushrod

A clevis

A flexible rubber disc called a diaphragm

A return spring

13 / 30

Who can perform re-adjustments on automatic slack adjusters?

Only certified technicians

Anyone in the yard

The driver

The carrier

14 / 30

What happens when a spring brake chamber has been disabled?

The emergency brake will apply, but not the parking brake

All brakes will not apply

The parking brake will apply, but not the emergency brake

The parking and emergency brake will not apply

15 / 30

Pushrod stroke is produced by what?

Pressure applied to the foot valve

Compressed air entering the brake chamber

Manually adjusting the slack adjuster

The governor

16 / 30

Are spring brakes air applied like service brakes?

Only on older vehicles

Only on fire trucks

Yes

17 / 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

18 / 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

19 / 30

What do front wheel-limiting valves do?

None of the above

They maximize the braking pressure required on the front steering axle

They control the air flow from the governor

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

20 / 30

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

Brake failure or fade

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

21 / 30

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

At the steering wheels

At the rear wheels

At each wheel

Beside the primary tank

22 / 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

23 / 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

24 / 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

25 / 30

What is referred to as stroke length?

The distance that the return spring moves into the chamber

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

26 / 30

Compressed air is converted into what?

More air

Mechanical force to apply the brakes and stop the vehicle

Power

Weight

27 / 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

28 / 30

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

Using a caging bolt

None of the above

Using a spring bolt

Using a compressing bolt

29 / 30

What are the two kinds of air brake chambers called?

Air and hydraulic

Normal and emergency

Service and spring

Primary and secondary

30 / 30

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

On or near the vehicle's axles

Next to the governor

Air-dryer exhaust port

Exhaust ports of brake valves

Your score is

Manitoba Air Brake Test 03

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