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 air pressure is released, what happens to the pushrod?

Nothing

It moves forward

It is returned to its original position

It remains in the locked position

2 / 30

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

Only in emergency situations

Yes

Only with older vehicles

3 / 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 100 and 110 psi

Between 70 and 80 psi

Between 55 and 65 psi

4 / 30

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

Moved right

Moved left

Pushed

Pulled

5 / 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

6 / 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

The parking and emergency brake will not apply

All brakes will not apply

7 / 30

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

A clamp assembly

Diaphragms

S-shafts

Bolts

8 / 30

Pushrod stroke is produced by what?

Manually adjusting the slack adjuster

The governor

Compressed air entering the brake chamber

Pressure applied to the foot valve

9 / 30

When are spring brakes designed to work?

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

When going downhill

At highways speeds

Only on icy road conditions

10 / 30

Are spring brakes air applied like service brakes?

Yes

Only on fire trucks

Only on older vehicles

11 / 30

Who can perform re-adjustments on automatic slack adjusters?

Anyone in the yard

The driver

The carrier

Only certified technicians

12 / 30

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

None of the above

Pushrod

Slack adjuster

Clevis pin

13 / 30

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

Next to the governor

Exhaust ports of brake valves

Air-dryer exhaust port

On or near the vehicle's axles

14 / 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

15 / 30

What are the two kinds of air brake chambers called?

Service and spring

Primary and secondary

Air and hydraulic

Normal and emergency

16 / 30

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

A return spring

A metal rod called a pushrod

A clevis

A flexible rubber disc called a diaphragm

17 / 30

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

Using a compressing bolt

None of the above

Using a caging bolt

Using a spring bolt

18 / 30

What is referred to as stroke length?

The distance that the return spring moves out of the chamber

The distance that the pushrod travels into the chamber

The distance that the return spring moves into the chamber

The distance that the pushrod travels out of the chamber

19 / 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

20 / 30

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

Emergency braking

Going downgrade

Parking

Normal braking

21 / 30

What do the pushrod and slack adjuster do?

They control the pressure going to the brake chamber

They link the brake chamber to the brake assembly

They increase the braking force sent to the brakes

They reduce the pressure to the brakes

22 / 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

23 / 30

What is another word for compressing the spring?

Cramp

Cage

Doyle

Sage

24 / 30

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

Drive with hazard lights on

Avoid driving on highways

Have the vehicle inspected and repaired immediately

Travel to short destinations, no further than 160 km

25 / 30

Compressed air is converted into what?

More air

Power

Weight

Mechanical force to apply the brakes and stop the vehicle

26 / 30

Disabled or caged spring brake chambers can be recognized how?

By the protrusion of the caging bolt or other similar mechanism

By the missing caging bolt

By the retractable caging bolt

You can't

27 / 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

28 / 30

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

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

Brake failure or fade

29 / 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

30 / 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

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Manitoba Air Brake Test 03

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