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

Disabled or caged spring brake chambers can be recognized how?

By the protrusion of the caging bolt or other similar mechanism

You can't

By the retractable caging bolt

By the missing caging bolt

2 / 30

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

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

None of the above

They are not located on all of the wheels

They release automatically

3 / 30

Are spring brakes air applied like service brakes?

Only on fire trucks

Yes

Only on older vehicles

4 / 30

What do the pushrod and slack adjuster do?

They reduce the pressure to the brakes

They link the brake chamber to the brake assembly

They increase the braking force sent to the brakes

They control the pressure going to the brake chamber

5 / 30

What happens when a spring brake chamber has been disabled?

The parking and emergency brake will not apply

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

6 / 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

7 / 30

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

Diaphragms

Bolts

S-shafts

A clamp assembly

8 / 30

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

Emergency braking

Going downgrade

Parking

Normal braking

9 / 30

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

Moved right

Pulled

Moved left

Pushed

10 / 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 clevis

A return spring

11 / 30

What are the two kinds of air brake chambers called?

Normal and emergency

Service and spring

Air and hydraulic

Primary and secondary

12 / 30

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

Using a spring bolt

Using a compressing bolt

None of the above

Using a caging bolt

13 / 30

What is referred to as stroke length?

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

The distance that the return spring moves out of the chamber

14 / 30

What do front wheel-limiting valves do?

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

They maximize the braking pressure required on the front steering axle

15 / 30

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

Have the vehicle inspected and repaired immediately

Avoid driving on highways

Drive with hazard lights on

Travel to short destinations, no further than 160 km

16 / 30

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

Pushrod

None of the above

Slack adjuster

Clevis pin

17 / 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 fills up the lines and hoses with compressed air

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

18 / 30

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

Nothing

It is returned to its original position

It moves forward

It remains in the locked position

19 / 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 70 and 80 psi

Between 55 and 65 psi

Between 50 and 60 psi

20 / 30

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

Beside the primary tank

At each wheel

At the rear wheels

At the steering wheels

21 / 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 brakes

A release of the air pressure

22 / 30

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

On or near the vehicle's axles

Exhaust ports of brake valves

Air-dryer exhaust port

Next to the governor

23 / 30

Who can perform re-adjustments on automatic slack adjusters?

Anyone in the yard

Only certified technicians

The carrier

The driver

24 / 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

25 / 30

Pushrod stroke is produced by what?

Compressed air entering the brake chamber

The governor

Manually adjusting the slack adjuster

Pressure applied to the foot valve

26 / 30

What is another word for compressing the spring?

Doyle

Sage

Cage

Cramp

27 / 30

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

The drums crack

The drop in brake force can be significant

Nothing of consequence happens

Brake force increases

28 / 30

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

Only with older vehicles

Only in emergency situations

Yes

29 / 30

When are spring brakes designed to work?

Only on icy road conditions

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

When going downhill

At highways speeds

30 / 30

Compressed air is converted into what?

Power

Weight

Mechanical force to apply the brakes and stop the vehicle

More air

Your score is

Manitoba Air Brake Test 03

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