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 do front wheel-limiting valves do?

They control the air flow from the governor

None of the above

They maximize the braking pressure required on the front steering axle

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

2 / 30

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

Yes

Only in emergency situations

Only with older vehicles

3 / 30

Are spring brakes air applied like service brakes?

Only on fire trucks

Only on older vehicles

Yes

4 / 30

When are spring brakes designed to work?

At highways speeds

When going downhill

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

Only on icy road conditions

5 / 30

Pushrod stroke is produced by what?

The governor

Manually adjusting the slack adjuster

Pressure applied to the foot valve

Compressed air entering the brake chamber

6 / 30

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

Beside the primary tank

At the rear wheels

At the steering wheels

At each wheel

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 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

8 / 30

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

It is returned to its original position

It moves forward

Nothing

It remains in the locked position

9 / 30

Who can perform re-adjustments on automatic slack adjusters?

The driver

Only certified technicians

Anyone in the yard

The carrier

10 / 30

What happens when a spring brake chamber has been disabled?

All brakes will not apply

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

11 / 30

Disabled or caged spring brake chambers can be recognized how?

By the missing caging bolt

By the retractable caging bolt

By the protrusion of the caging bolt or other similar mechanism

You can't

12 / 30

Compressed air is converted into what?

Power

Weight

Mechanical force to apply the brakes and stop the vehicle

More air

13 / 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 out of the chamber

The distance that the return spring moves into the chamber

14 / 30

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

None of the above

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

15 / 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 100 and 110 psi

Between 55 and 65 psi

16 / 30

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

Moved left

Pulled

Moved right

Pushed

17 / 30

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

Exhaust ports of brake valves

Next to the governor

Air-dryer exhaust port

On or near the vehicle's axles

18 / 30

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

A metal rod called a pushrod

A flexible rubber disc called a diaphragm

A return spring

A clevis

19 / 30

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

The drop in brake force can be significant

Brake force increases

The drums crack

Nothing of consequence happens

20 / 30

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

Travel to short destinations, no further than 160 km

Drive with hazard lights on

Avoid driving on highways

Have the vehicle inspected and repaired immediately

21 / 30

What do the pushrod and slack adjuster do?

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

They reduce the pressure to the brakes

22 / 30

What is another word for compressing the spring?

Cramp

Cage

Sage

Doyle

23 / 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

24 / 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

25 / 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

26 / 30

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

Emergency braking

Parking

Going downgrade

Normal braking

27 / 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

28 / 30

What are the two kinds of air brake chambers called?

Air and hydraulic

Normal and emergency

Primary and secondary

Service and spring

29 / 30

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

Using a caging bolt

Using a compressing bolt

None of the above

Using a spring bolt

30 / 30

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

Bolts

S-shafts

A clamp assembly

Diaphragms

Your score is

By WordPress Quiz plugin

Manitoba Air Brake Test 03

About

Practice Tests

Getting a License

Get In Touch