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?

Only certified technicians

The driver

The carrier

Anyone in the yard

2 / 30

Compressed air is converted into what?

Power

Mechanical force to apply the brakes and stop the vehicle

More air

Weight

3 / 30

Pushrod stroke is produced by what?

Manually adjusting the slack adjuster

Compressed air entering the brake chamber

The governor

Pressure applied to the foot valve

4 / 30

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

Clevis pin

None of the above

Pushrod

Slack adjuster

5 / 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

6 / 30

What is referred to as stroke length?

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

The distance that the pushrod travels into the chamber

7 / 30

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

S-shafts

Bolts

A clamp assembly

Diaphragms

8 / 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

9 / 30

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

They release automatically

None of the above

They are not located on all of the wheels

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

10 / 30

What do front wheel-limiting valves do?

They maximize the braking pressure required on the front steering axle

None of the above

They control the air flow from the governor

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

11 / 30

What is another word for compressing the spring?

Sage

Cramp

Cage

Doyle

12 / 30

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

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

Brake failure or fade

A release of the air pressure

A release of the brakes

13 / 30

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

Yes

Only in emergency situations

Only with older vehicles

14 / 30

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

Brake force increases

Nothing of consequence happens

The drop in brake force can be significant

The drums crack

15 / 30

Disabled or caged spring brake chambers can be recognized how?

By the retractable caging bolt

By the missing caging bolt

You can't

By the protrusion of the caging bolt or other similar mechanism

16 / 30

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

Moved right

Pulled

Moved left

Pushed

17 / 30

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

Air-dryer exhaust port

On or near the vehicle's axles

Exhaust ports of brake valves

Next to the governor

18 / 30

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

It moves forward

Nothing

It remains in the locked position

It is returned to its original position

19 / 30

What do the pushrod and slack adjuster do?

They reduce the pressure to the brakes

They control the pressure going to the brake chamber

They increase the braking force sent to the brakes

They link the brake chamber to the brake assembly

20 / 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 50 and 60 psi

Between 55 and 65 psi

Between 70 and 80 psi

21 / 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

22 / 30

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

A return spring

A flexible rubber disc called a diaphragm

A metal rod called a pushrod

A clevis

23 / 30

When are spring brakes designed to work?

Only on icy road conditions

At highways speeds

When going downhill

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

24 / 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

25 / 30

What are the two kinds of air brake chambers called?

Air and hydraulic

Primary and secondary

Normal and emergency

Service and spring

26 / 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 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

27 / 30

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

Normal braking

Emergency braking

Parking

Going downgrade

28 / 30

What happens when a spring brake chamber has been disabled?

The parking brake will apply, but not the emergency brake

The emergency brake will apply, but not the parking brake

All brakes will not apply

The parking and emergency brake will not apply

29 / 30

Are spring brakes air applied like service brakes?

Only on fire trucks

Only on older vehicles

Yes

30 / 30

How do spring brake chambers apply the brakes?

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 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

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Manitoba Air Brake Test 03

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