ONTARIO AIR BRAKE PRACTICE TEST 03

With our free practice tests, you can improve your chances of passing the Ontario Air Brake test and obtaining your commercial driver’s license, enabling you to advance your career in the trucking industry.

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Ontario Air Brake Test 03

What does the 'S' shape on the one end of the camshaft operate in the 'S' cam system?
a.
b.
c.
d.

Question 1 of 30

If a vehicle fails to comply with the specific requirements for the safe operation of commercial motor vehicles as set out in the Ontario Highway Traffic Act, the driver, operator and/or owner of the vehicle must...?
a.
b.
c.
d.

Question 2 of 30

Which of these parts would you find on a disk air brake system?
a.
b.
c.
d.

Question 3 of 30

When towing a trailer, you will usually be able to tell if it is employing ABS by...?
a.
b.
c.
d.

Question 4 of 30

If a vehicle is found to be noncompliant with the safe operation requirements in the Ontario Highway Traffic Act, which of these sanctions may be applied?
a.
b.
c.
d.

Question 5 of 30

For safety, the full capacity of the brake system must be available...?
a.
b.
c.
d.

Question 6 of 30

Brake fade is caused by...?
a.
b.
c.
d.

Question 7 of 30

In the 'S' cam brake system, what does a brake spider hold?
a.
b.
c.
d.

Question 8 of 30

When you double your speed, the demand on your brakes to come to a stop will increase by how much?
a.
b.
c.
d.

Question 9 of 30

When conducting an inspection of an air brake system, the vehicle should be parked...?
a.
b.
c.
d.

Question 10 of 30

The best way to reduce harsh brake use is to...?
a.
b.
c.
d.

Question 11 of 30

Wedge brake systems are designed to be...?
a.
b.
c.
d.

Question 12 of 30

How are wedge brake systems different to other drum brake systems?
a.
b.
c.
d.

Question 13 of 30

Which of these is essential to ensure that full braking force is available?
a.
b.
c.
d.

Question 14 of 30

Which of these circumstances is not likely to increase the operating temperature of the brakes?
a.
b.
c.
d.

Question 15 of 30

The Ontario Highway Traffic Act requires that vehicles with air brakes must be checked at least once...?
a.
b.
c.
d.

Question 16 of 30

Which of these significantly decreases the brake force produced at the wheel?
a.
b.
c.
d.

Question 17 of 30

Which of these is not a part of a disc air brake system?
a.
b.
c.
d.

Question 18 of 30

Which of these parts would you not find on an “S” cam air brake system?
a.
b.
c.
d.

Question 19 of 30

What does an ABS system do?
a.
b.
c.
d.

Question 20 of 30

A vehicle should have wheel chocks or blocks securing it in place during inspection if...?
a.
b.
c.
d.

Question 21 of 30

When making an inspection of an air brake system, drivers should wear...?
a.
b.
c.
d.

Question 22 of 30

Inspections of air brake systems should begin by checking...?
a.
b.
c.
d.

Question 23 of 30

Brakes that are out of adjustment can be detected by...?
a.
b.
c.
d.

Question 24 of 30

In extreme cases, brake fade can lead to...?
a.
b.
c.
d.

Question 25 of 30

You will place abnormal demand on your brake system if you...?
a.
b.
c.
d.

Question 26 of 30

When making any inspection, drivers should be on guard for...?
a.
b.
c.
d.

Question 27 of 30

Which of these parts would you not find on a wedge air brake system?
a.
b.
c.
d.

Question 28 of 30

Excessive brake temperature can be avoided in vehicles which are fitted with...?
a.
b.
c.
d.

Question 29 of 30

Which of these will not be a factor on how your vehicle's brakes work?
a.
b.
c.
d.

Question 30 of 30


 

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AZ Practice Test

Our free AZ practice test questions and answers will prepare you to pass Ontario’s official Air Brakes knowledge test. To begin your career in trucking, you must obtain your Ontario Class A or Class D Truck Driver’s Licence. The appropriate CDL endorsements you will need are based on the type of trucking career you plan to pursue. To obtain these endorsements, you must complete a written knowledge test successfully. Making sure you are adequately prepared for your written knowledge test will prevent you from wasting time and money. Taking practice CDL tests is the best way to get ready.

Passing your air brake test doesn’t have to be a stressful experience. Follow this important tip, and you should pass the test without a problem.

Take a Practice Test – After studying for a bit and feeling comfortable with the material, take an AZ practice test. This will help you identify any issues early on and let you know what areas need work. Do not get upset if you do poorly on the practice test. Learn from your mistakes, and fix the areas you have trouble with.