Manitoba Commercial Drivers License Air Brakes Practice Test 3

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Manitoba Air Brakes Practice Test 3

A 20 question practice test to help prepare you for your air brakes knowledge test in Manitoba

1 / 20

Which of these vehicles would usually have an air brake system?

A school bus

A pickup truck

A hearse

A compact car

2 / 20

When inspecting an air brake system, the person inspecting should wear?

Dust mask, safety glasses

Shorts and Crocs

Steel toe boots, safety glasses, hard hats

Sandals and shorts

3 / 20

What is not a factor in how well your air brake system works?

Weight of the vehicle

Driving speed

Weight of the driver

Brake adjustments

4 / 20

Why are their two service tanks?

For fuel economy

Incase you need more stopping power

For safety

For efficiency

5 / 20

What is an ABS system?

Increases braking power

Prevents wheel lock

Automatically brakes when needed

Reduces stopping distance

6 / 20

Which of these is not part of an air brake system?

Rotors

Drum

Shoe

Lining

7 / 20

When brakes become overheated they also become?

Very hot

None of the above

Dangerously inefficient

Extra efficient

8 / 20

How long should it take for the air pressure to rise from 587kPa to 690 kPa after the pressure had fallen below 552 kPa?

5 mins

2 mins

1 min

4 mins

9 / 20

Who can perform adjustments and maintenance on your air brake system?

Your employer

You can if you are the owner

Anyone

Only certified technicians

10 / 20

Which colour represent the trailer supply line?

Red

Blue

Yellow

White

11 / 20

Cut out pressure level must never exceed __________.

1000 kPa (145 psi)

690 kPa (100 psi)

862 kPa (125 psi)

1138 kPa (165 psi)

12 / 20

Where is the air pressure gauge for the air brake system?

Beside the supply tank

On the vehicle dashboard

Beside the air compressor

On each wheels brake

13 / 20

Correct belt tension for an air compressor can be determined by

Firm hand pressure

A karate chop

A tight squeeze of the hand

Finger pressure

14 / 20

What can cause the air pressure in the air brake system to drop?

Disconnected supply line

A hole in the supply line

A broken air compressor

All of these

15 / 20

Activation of trailer spring brakes can be checked by?

Rocking the truck back and forth

Applying slight engine power

Gunning it

Pulling the trailer air valve

16 / 20

What is a "glad hand"?

An emergency supply line

A dance move

The crank for the trailer legs

A coupling device

17 / 20

What function does the alcohol evaporator perform?

Prevents overheating

Prevents freezing

Prevents moisture build ups in the brake lines

Prevents the system from building up too much pressure

18 / 20

What is the most frequent reason a vehicle is removed from service?

Tire treads

Sleepy drivers

Air brakes

Over weight limits

19 / 20

A warning system must alert the driver when the pressure drops below?

413 kPa (60 psi)

551 kPa (80 psi)

242 kPs (35 psi)

380 kPa (55 psi)

20 / 20

How do you engage the emergency / parking brake on most air brake systems?

Pull out the control

Twist it to the right

Press down the pedal

Twist it to the left

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More Manitoba Commercial Driving Practice Tests

Manitoba Class 1 Practice Tests

Manitoba Class 3 Practice Tests

Manitoba Class 4 Practice Tests

Air Brakes Practice Tests

Manitoba Road Signs Test

We do our best to keep the questions current and accurate. The testing centres may change the questions on the knowledge tests at any time. Always be prepared for surprises.

Many of the answers to the questions can be found in the driver hand books or learning materials your province provides.

DISCLAIMER:CDHQ is not affiliated with the provinces or any test centres. These practice tests should not be considered official tests and you are not granted a license for completing them. Our tests are simply a practice tool to help prepare yourself for the real test.