Manitoba Air Brake Practice Test 02 | DrivingTest

Manitoba Air Brake Practice Test 02 is an online driving test practice site that serves all provinces and territories in Canada. Advance through the practice tests at your own pace on any computer, tablet or mobile phone with internet access. While these tests are not the same as the actual ones you will be taking, they can give you a good idea of what to expect. It is all FREE!

Air Brake Test - Quiz 2

On vehicles equipped with ______ brakes it is possible to pump the brake pedal to compensate for brakes that are out of adjustment. This is not possible with a vehicle equipped with ___________ brakes.

Question 1 of 30

Which of the following is capable of directing air flow into a common line from either of the foot valve or the hand valve?

Question 2 of 30

In regards to a dual air brake system, air taken from primary and secondary circuits through a two-way check valve is known as _________.

Question 3 of 30

Which of the following negatively affect braking ability?

Question 4 of 30

When a brake diaphragm chamber bottoms out, the force reduces to ____.

Question 5 of 30

___________ prevents total loss of air from the tractor if the trailer breaks away, or if the connecting air lines between tractor and trailer become separated or ruptured.

Question 6 of 30

Which of the following is true of a basic dual air brake system?

Question 7 of 30

Which of the following is a disadvantage of a control (service) line and foot and hand valve system?

Question 8 of 30

Which of the following is true in the case that there is air loss in one of the dual air brake system's circuits?

Question 9 of 30

If the air pressure drops to a range between ______ psi, the trailer supply valve will close automatically by spring pressure, opening the exhaust port.

Question 10 of 30

The effectiveness of diaphragm brake chambers drops off significantly if the stroke exceeds __% of its designed travel.

Question 11 of 30

Which of the following is responsible for preventing automatic spring brake application if the trailer supply line has a gradual leak?

Question 12 of 30

Caging a spring parking brake is the same as...

Question 13 of 30

What are the two types of trailer supply valves? Choose the best answer.

Question 14 of 30

Which of the following is another term for a control (service) line?

Question 15 of 30

A tractor protection valve is normally located near the _________.

Question 16 of 30

If a relay emergency valve is mounted on the trailer reservoir and a loss of air pressure from the power unit service system occurs, what will automatically happen?

Question 17 of 30

Which of the following is a term that refers to the coupling device used to connect the control (service) and supply (emergency) lines of the trailer to the tractor?

Question 18 of 30

A/n _______ is an electronic system that monitors wheel speed at all times and controls wheel speed while braking.

Question 19 of 30

Which of the following negatively affects braking ability?

Question 20 of 30

___________ must not be used to hold a parked vehicle that is left unattended. Loss of pressure will result in loss of brakes. Always set the __________.

Question 21 of 30

$What would happen if a trailer that is not equipped with spring parking brakes were to separate from the tractor?

Question 22 of 30

On the pre-trip air brake inspection, you must ensure that the parking brake spring is not _______ or it will not expand and apply the brake.

Question 23 of 30

An ABS system keeps the wheel from skidding and increases vehicle stability and control during what type of conditions?

Question 24 of 30

If the foot valve is supplying a higher application pressure than the hand valve, a two-way check valve will allow air flow from which source?

Question 25 of 30

Tractors and trailers _______ ABS can be connected to one another without affecting the operation of the ABS.

Question 26 of 30

What system reduces the potential of powering into a jackknife caused by wheel overspin during acceleration?

Question 27 of 30

Which of the following can a tractor with a dual air brake and spring parking brakes system tow?

Question 28 of 30

When connecting the glad hands, start with the two gaskets together and the couplers at a ___ angle to each other.

Question 29 of 30

With automatic traction control, __________ is activated when the system detects a wheel slipping because the wheels operating on different surfaces such as one wheel on dry pavement and the other on ice.

Question 30 of 30


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 to assist drivers in understanding the basic operation and function of an air brake system.Requirements for Air Brake Endorsement are 1) Must complete an Air Brake Written Test 2) Must complete an Air Brake Practical Test. This endorsement permits the holder to drive vehicles equipped with air brakes in the class of vehicle for which the driver is licenced.

In order to successfully prepare, consider utilizing these exams and official Manitoba Air Brake Manual 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 MPI office to take the air brake licence written knowledge test.