Free New Mexico CDL Air Brakes Practice Test 2022

Do you need an Air Brakes endorsement or an L endorsement for your commercial driving license? The New Mexico 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 New Mexico 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 NM CDL Test to get ready to pass the New Mexico CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2022 NM commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NM CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
If you do not have automatic tank drains, how often should you drain the oil and water from the bottom of compressed air storage tanks?
2.
"A slack adjuster’s free play needs to be adjusted if it is more than about ______ when you pull hard on it."
3.
A dual air brake system ________.
4.
Excessive heat caused by using your brakes too often can also cause:
5.
The 3 individual systems of the air brakes are the service brakes, emergency brake, and:
6.
The spring brakes used on the chambers in a straight truck will bring you to a stop when air pressure drops below ___ psi.
7.
The main factor in causing brake fade is:
8.
The application pressure gauge shows how much air pressure you:
9.
Where is the modulating control valve located on some vehicles?
10.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
11.
The safety valve is set automatically when pressure is:
12.
If your truck has a dual air brake system, and one of the systems is low on pressure:
13.
Average stopping distance under normal conditions at 55 mph is:
14.
If your vehicle has an alcohol evaporator, every day during cold weather you should:
15.
Under normal braking conditions, the vehicle:
16.
Compared to hydraulic brakes, air brakes add how much distance to an average 55 mph stop?
17.
If you need to make an emergency stop, you should brake so that you can ________.
18.
At what level will the low air warning usually take effect?
19.
The braking power of the spring brakes ______.
20.
Automatic adjusters should ________.
21.
Stab braking should only be used:
22.
Brake drums or discs _______.
23.
The governor stops the compressor from pumping air at:
24.
Vehicles with ABS have malfunction lamps that are what color?
25.
What is an alternative name for a brake pedal?