Free Massachusetts CDL Air Brakes Practice Test 2022

Do you need an Air Brakes endorsement or an L endorsement for your commercial driving license? The Massachusetts CDL Air Brake test has some differences from other endorsements because your license will receive a mark of restriction if you fail the test. So having good preparation before exam day is very necessary. To ensure that our questions are relevant, all of our CDL practice test packs are based on the MA CDL Manual. Each question has a detailed explanation for you to thoroughly learn the format and the topic. Don't be afraid of having a restriction on your license. Let’s try our Massachusetts CDL Practice Test to get ready to pass the Massachusetts CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2022 MA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MA CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
The air compressor stops pumping air at what psi?
2.
A low pressure warning signal could be __________.
3.
All air brake equipped vehicles have:
4.
If you must make an emergency stop, you should brake so you:
5.
What should a driver do when the low air pressure warning signal comes on?
6.
In most newer vehicles, the parking brake control will be:
7.
When using a vehicle with air brakes, the parking needs to be used _______.
8.
If the air compressor should develop a leak, what keeps the air in the tanks?
9.
The safety valve is set automatically when pressure is:
10.
The safety valve reduces pressure at ___ psi.
11.
What must the air pressure be, at minimum, in both parts of a dual air brake system?
12.
When checking the air pressure buildup, pressure should build:
13.
Total stopping distance with air brakes is Perception distance + Braking Distance + Brake Lag Distance +:
14.
What tells the driver how much air pressure is in the air tanks?
15.
If your vehicle has an alcohol evaporator, every day during cold weather you should:
16.
Brake linings should not be _______.
17.
If your vehicle has an alcohol evaporator, the evaporator's purpose is to _____.
18.
Stab braking should only be used:
19.
Automatic adjusters should ________.
20.
If air supply drops when driving, the tractor protection valve ________.
21.
Why should air tanks be drained completely?
22.
What does the air compressor governor control?
23.
Spring brakes are applied:
24.
To prevent too much pressure from building up in the system, what is installed?
25.
The warning light and buzzer will come on when the air pressure in either system drops below what psi?