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BC Air Brake Test 01

To prevent contamination, reservoirs should be drained how often?
a.
b.
c.
d.

Question 1 of 25

A quick release valve between the front brake chambers and the foot valve serves what purpose?
a.
b.
c.
d.

Question 2 of 25

Many current air brake systems operate with a maximum pressure of what?
a.
b.
c.
d.

Question 3 of 25

In a typical Type 30 chamber, an air pressure of 100 psi will deliver a force on the pushrod of what?
a.
b.
c.
d.

Question 4 of 25

A dual air brake system usually has how many reservoirs?
a.
b.
c.
d.

Question 5 of 25

What do the one-way check valves on a dual air brake system control?
a.
b.
c.
d.

Question 6 of 25

If your compressor is belt driven, when you press down on the belt midway between the pulleys, you should not be able to push it in more than…?
a.
b.
c.
d.

Question 7 of 25

Which of these is not part of an air brake chamber?
a.
b.
c.
d.

Question 8 of 25

When an air pressure warning is given, what should you do?
a.
b.
c.
d.

Question 9 of 25

The air pressure gauge for the system will be found where?
a.
b.
c.
d.

Question 10 of 25

The mechanical parts of the brake system inside the wheel are known as what?
a.
b.
c.
d.

Question 11 of 25

The low air pressure warning device must come on when the air pressure drops below what level?
a.
b.
c.
d.

Question 12 of 25

Air brake systems are less likely to completely fail than hydraulic systems because…?
a.
b.
c.
d.

Question 13 of 25

The gap between maximum and minimum pressure in the system should be approximately what?
a.
b.
c.
d.

Question 14 of 25

A relay valve is installed to reduce what?
a.
b.
c.
d.

Question 15 of 25

The governor on the compressor must be set to allow the compressor to resume compressing air when the air pressure falls below what level?
a.
b.
c.
d.

Question 16 of 25

Which of these controls the compressor in an air brake system?
a.
b.
c.
d.

Question 17 of 25

A normal stop on level ground in good conditions will usually involve an air pressure of less than…?
a.
b.
c.
d.

Question 18 of 25

The supply reservoir is also known as…?
a.
b.
c.
d.

Question 19 of 25

How often should you check air pressure gauges on a trip?
a.
b.
c.
d.

Question 20 of 25

In most systems the primary section of a dual air brake system controls what?
a.
b.
c.
d.

Question 21 of 25

The safety valve is sometimes referred to as what?
a.
b.
c.
d.

Question 22 of 25

If a compressor is working at 120 psi, what will the air temperature as it leaves the compressor be?
a.
b.
c.
d.

Question 23 of 25

A dual brake system has brakes controlled by…?
a.
b.
c.
d.

Question 24 of 25

Air brake systems are used on commercial vehicles instead of hydraulic systems because…?
a.
b.
c.
d.

Question 25 of 25


 

It is recommended that you take a practice test before you take the actual written test. Please note, however, that this is not the actual test, and you will not receive your license if you pass this sample practice test. If you’re getting your commercial licence, you've come to the right place.

This Air Brake practice test has been prepared by Drivingtest.ca to assist drivers in understanding air brake systems. Taking this practice test and practical instruction will assist drivers in operating air brake equipped vehicles before and after obtaining their BC air brake endorsement. To operate vehicles equipped with air brakes on a highway (other than a vehicle defined as a construction vehicle), you must have a B.C. driver’s licence with an air brake endorsement (code 15). Endorsement code 15 is shown in the “restrictions” section of a driver’s
licence.

In order to successfully prepare, consider utilizing these exams and official BC “driving commercial vehicles -a guide for professional drivers” to your advantage. The more knowledge you can attain, the better it will be for you once you decide to make your way back into the licence office to take the air brake licence written knowledge test.