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

Who can perform re-adjustments on automatic slack adjusters?

The driver

The carrier

Only certified technicians

Anyone in the yard

2 / 30

Compressed air is converted into what?

Power

Weight

Mechanical force to apply the brakes and stop the vehicle

More air

3 / 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

4 / 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

5 / 30

What are the two kinds of air brake chambers called?

Service and spring

Air and hydraulic

Normal and emergency

Primary and secondary

6 / 30

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

A flexible rubber disc called a diaphragm

A return spring

A clevis

A metal rod called a pushrod

7 / 30

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

Only in emergency situations

Yes

Only with older vehicles

8 / 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

9 / 30

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

Avoid driving on highways

Drive with hazard lights on

Have the vehicle inspected and repaired immediately

Travel to short destinations, no further than 160 km

10 / 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

At highways speeds

When going downhill

11 / 30

Are spring brakes air applied like service brakes?

Yes

Only on fire trucks

Only on older vehicles

12 / 30

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

They are not located on all of the wheels

None of the above

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

They release automatically

13 / 30

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

It remains in the locked position

Nothing

It moves forward

It is returned to its original position

14 / 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

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

None of the above

15 / 30

Disabled or caged spring brake chambers can be recognized how?

You can't

By the protrusion of the caging bolt or other similar mechanism

By the missing caging bolt

By the retractable caging bolt

16 / 30

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

Beside the primary tank

At each wheel

At the steering wheels

At the rear wheels

17 / 30

What is another word for compressing the spring?

Doyle

Cramp

Cage

Sage

18 / 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 fills up the lines and hoses with compressed air

None of the above

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

19 / 30

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

A clamp assembly

S-shafts

Bolts

Diaphragms

20 / 30

What do the pushrod and slack adjuster do?

They reduce the pressure to the brakes

They link the brake chamber to the brake assembly

They control the pressure going to the brake chamber

They increase the braking force sent to the brakes

21 / 30

Pushrod stroke is produced by what?

Pressure applied to the foot valve

Compressed air entering the brake chamber

The governor

Manually adjusting the slack adjuster

22 / 30

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

Brake failure or fade

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

23 / 30

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

Going downgrade

Parking

Emergency braking

Normal braking

24 / 30

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

Pushed

Moved right

Pulled

Moved left

25 / 30

What happens when a spring brake chamber has been disabled?

The parking and emergency brake will not apply

All brakes will not apply

The emergency brake will apply, but not the parking brake

The parking brake will apply, but not the emergency brake

26 / 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 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

27 / 30

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

Air-dryer exhaust port

Exhaust ports of brake valves

Next to the governor

On or near the vehicle's axles

28 / 30

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

Pushrod

Clevis pin

None of the above

Slack adjuster

29 / 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

30 / 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 55 and 65 psi

Between 100 and 110 psi

Between 50 and 60 psi

Your score is

By WordPress Quiz plugin

Manitoba Air Brake Test 03

About

Practice Tests

Getting a License

Get In Touch