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

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

Moved right

Moved left

Pulled

Pushed

2 / 30

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

None of the above

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

3 / 30

How do spring brake chambers apply the brakes?

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

None of the above

4 / 30

Pushrod stroke is produced by what?

Compressed air entering the brake chamber

Pressure applied to the foot valve

The governor

Manually adjusting the slack adjuster

5 / 30

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

Brake force increases

The drums crack

The drop in brake force can be significant

Nothing of consequence happens

6 / 30

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

Emergency braking

Going downgrade

Normal braking

Parking

7 / 30

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

Only with older vehicles

Only in emergency situations

Yes

8 / 30

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

Drive with hazard lights on

Avoid driving on highways

Travel to short destinations, no further than 160 km

Have the vehicle inspected and repaired immediately

9 / 30

What are the two kinds of air brake chambers called?

Service and spring

Air and hydraulic

Normal and emergency

Primary and secondary

10 / 30

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

Exhaust ports of brake valves

Next to the governor

On or near the vehicle's axles

Air-dryer exhaust port

11 / 30

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

Slack adjuster

Clevis pin

Pushrod

None of the above

12 / 30

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

Using a caging bolt

Using a spring bolt

None of the above

Using a compressing bolt

13 / 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

14 / 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

15 / 30

Compressed air is converted into what?

More air

Power

Weight

Mechanical force to apply the brakes and stop the vehicle

16 / 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

All brakes will not apply

The emergency brake will apply, but not the parking brake

17 / 30

What is another word for compressing the spring?

Cramp

Cage

Sage

Doyle

18 / 30

When are spring brakes designed to work?

When going downhill

Only on icy road conditions

At highways speeds

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

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 55 and 65 psi

Between 70 and 80 psi

Between 50 and 60 psi

20 / 30

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

A clamp assembly

Bolts

S-shafts

Diaphragms

21 / 30

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

It is returned to its original position

It remains in the locked position

It moves forward

Nothing

22 / 30

What do front wheel-limiting valves do?

They maximize the braking pressure required on the front steering axle

None of the above

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

They control the air flow from the governor

23 / 30

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

At the steering wheels

Beside the primary tank

At each wheel

At the rear wheels

24 / 30

Are spring brakes air applied like service brakes?

Yes

Only on fire trucks

Only on older vehicles

25 / 30

What do the pushrod and slack adjuster do?

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

They reduce the pressure to the brakes

26 / 30

Who can perform re-adjustments on automatic slack adjusters?

The driver

Anyone in the yard

The carrier

Only certified technicians

27 / 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

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

It fills up the reservoirs with compressed air

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

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

A metal rod called a pushrod

A return spring

A clevis

A flexible rubber disc called a diaphragm

Your score is

Manitoba Air Brake Test 03

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