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

When are spring brakes designed to work?

Only on icy road conditions

When going downhill

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

At highways speeds

2 / 30

Are spring brakes air applied like service brakes?

Only on older vehicles

Yes

Only on fire trucks

3 / 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

4 / 30

What do front wheel-limiting valves do?

None of the above

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

They maximize the braking pressure required on the front steering axle

They control the air flow from the governor

5 / 30

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

At each wheel

Beside the primary tank

At the steering wheels

At the rear wheels

6 / 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 reduce the pressure to the brakes

They link the brake chamber to the brake assembly

7 / 30

Pushrod stroke is produced by what?

The governor

Compressed air entering the brake chamber

Pressure applied to the foot valve

Manually adjusting the slack adjuster

8 / 30

Compressed air is converted into what?

Weight

More air

Power

Mechanical force to apply the brakes and stop the vehicle

9 / 30

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

The drums crack

Nothing of consequence happens

Brake force increases

The drop in brake force can be significant

10 / 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 causes the diaphragm to move and push out the pushrod to apply the brakes

It fills up the lines and hoses with compressed air

11 / 30

What happens when a spring brake chamber has been disabled?

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

All brakes will not apply

12 / 30

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

None of the above

They release automatically

They are not located on all of the wheels

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

13 / 30

What are the two kinds of air brake chambers called?

Normal and emergency

Primary and secondary

Air and hydraulic

Service and spring

14 / 30

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

Going downgrade

Emergency braking

Parking

Normal braking

15 / 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 air pressure 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

None of the above

16 / 30

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

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

Brake failure or fade

17 / 30

Who can perform re-adjustments on automatic slack adjusters?

Anyone in the yard

The driver

The carrier

Only certified technicians

18 / 30

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

Using a spring bolt

Using a compressing bolt

Using a caging bolt

None of the above

19 / 30

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

Between 55 and 65 psi

Between 100 and 110 psi

Between 50 and 60 psi

Between 70 and 80 psi

20 / 30

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

A flexible rubber disc called a diaphragm

A clevis

A metal rod called a pushrod

A return spring

21 / 30

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

On or near the vehicle's axles

Air-dryer exhaust port

Exhaust ports of brake valves

Next to the governor

22 / 30

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

Pushrod

Clevis pin

Slack adjuster

None of the above

23 / 30

What is another word for compressing the spring?

Cramp

Sage

Cage

Doyle

24 / 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

Avoid driving on highways

Drive with hazard lights on

25 / 30

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

Diaphragms

S-shafts

Bolts

A clamp assembly

26 / 30

What is referred to as stroke length?

The distance that the return spring moves out of the chamber

The distance that the return spring moves into the chamber

The distance that the pushrod travels into the chamber

The distance that the pushrod travels out of the chamber

27 / 30

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

Moved left

Moved right

Pushed

Pulled

28 / 30

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

Yes

Only in emergency situations

Only with older vehicles

29 / 30

Disabled or caged spring brake chambers can be recognized how?

You can't

By the retractable caging bolt

By the protrusion of the caging bolt or other similar mechanism

By the missing caging bolt

30 / 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

Your score is

Manitoba Air Brake Test 03

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