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 carrier

The driver

Anyone in the yard

Only certified technicians

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?

Brake failure or fade

A release of the air pressure

A release of the brakes

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

4 / 30

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

Diaphragms

Bolts

S-shafts

A clamp assembly

5 / 30

Are spring brakes air applied like service brakes?

Only on older vehicles

Only on fire trucks

Yes

6 / 30

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

Pushed

Moved right

Moved left

Pulled

7 / 30

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

At the steering wheels

Beside the primary tank

At the rear wheels

At each wheel

8 / 30

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

It moves forward

It is returned to its original position

It remains in the locked position

Nothing

9 / 30

How do spring brake chambers apply the brakes?

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

By means of hydraulic fluid that provides enough force to hold the brakes in the applied position

10 / 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 100 and 110 psi

Between 55 and 65 psi

Between 50 and 60 psi

11 / 30

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

Only in emergency situations

Yes

Only with older vehicles

12 / 30

Pushrod stroke is produced by what?

The governor

Manually adjusting the slack adjuster

Compressed air entering the brake chamber

Pressure applied to the foot valve

13 / 30

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

The drums crack

Brake force increases

Nothing of consequence happens

The drop in brake force can be significant

14 / 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

15 / 30

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

A clevis

A metal rod called a pushrod

A flexible rubber disc called a diaphragm

A return spring

16 / 30

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

None of the above

Using a caging bolt

Using a compressing bolt

Using a spring bolt

17 / 30

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

Going downgrade

Parking

Normal braking

Emergency braking

18 / 30

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

They release automatically

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

They are not located on all of the wheels

None of the above

19 / 30

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

Exhaust ports of brake valves

On or near the vehicle's axles

Air-dryer exhaust port

Next to the governor

20 / 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

21 / 30

What happens when a spring brake chamber has been disabled?

The emergency brake will apply, but not the parking brake

The parking brake will apply, but not the emergency brake

All brakes will not apply

The parking and emergency brake will not apply

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 you press the brake pedal and compressed air fills the service brake chamber?

None of the above

It fills up the lines and hoses with compressed air

It fills up the reservoirs with compressed air

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

24 / 30

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

Drive with hazard lights on

Have the vehicle inspected and repaired immediately

Avoid driving on highways

Travel to short destinations, no further than 160 km

25 / 30

What is another word for compressing the spring?

Doyle

Cage

Cramp

Sage

26 / 30

Compressed air is converted into what?

Mechanical force to apply the brakes and stop the vehicle

Power

More air

Weight

27 / 30

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

Pushrod

None of the above

Clevis pin

Slack adjuster

28 / 30

What are the two kinds of air brake chambers called?

Service and spring

Primary and secondary

Normal and emergency

Air and hydraulic

29 / 30

What do the pushrod and slack adjuster do?

They increase the braking force sent to the brakes

They control the pressure going to the brake chamber

They link the brake chamber to the brake assembly

They reduce the pressure to the brakes

30 / 30

Disabled or caged spring brake chambers can be recognized how?

You can't

By the retractable caging bolt

By the missing caging bolt

By the protrusion of the caging bolt or other similar mechanism

Your score is

By WordPress Quiz plugin

Manitoba Air Brake Test 03

About

Practice Tests

Getting a License

Get In Touch