Free New Jersey CDL Air Brakes Practice Test 2022

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

Our CDL practice tests:
Based on 2022 NJ commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NJ CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
Air brakes consist of ________.
2.
What can legally hold a parking or emergency brake in position for a truck, truck tractor, or bus?
3.
During normal driving, spring brakes are usually held back by:
4.
Emergency stab braking is:
5.
To stop the vehicle, air brakes systems use:
6.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
7.
To check the free play of manual slack adjusters of S-cam brakes, you should park on:
8.
If your truck or bus has dual parking control valves, you can use pressure from a separate tank to:
9.
All of the following are factors in total stopping distance except:
10.
The air compressor governor controls:
11.
Total stopping distance with air brakes is Perception distance + Braking Distance + Brake Lag Distance +:
12.
In case of emergency stops, drivers should:
13.
Under normal braking conditions, the vehicle:
14.
Repeatedly partially increasing and pressing the brake pedal may result in:
15.
When inspecting the air brake system, what particular item in the engine compartment should the driver pay specific attention to?
16.
You should avoid using the parking brake when _______.
17.
Automatic air tanks _______.
18.
In a dual air brake system, if the air pressure in one part of the system drops enough to set off the low air warning:
19.
If air supply drops when driving, the tractor protection valve ________.
20.
Initial air leakage rate for combination vehicles should be:
21.
On newer vehicles, the parking brake control knob is typically yellow, but on older vehicles, the parking brake might be what color?
22.
The belt of a belt-driven air compressor should be ________.
23.
To check the air compressor governor's "cut in" and "cut out" pressures you need to _________.
24.
A warning to drivers behind you that the air brakes have been applied is the:
25.
Manual air tank drains require: