Free New Hampshire CDL Air Brakes Practice Test 2022

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

Our CDL practice tests:
Based on 2022 NH commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NH 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.
The air loss rate for a straight truck or bus with the engine off and the brakes on should not be more than:
3.
A dual air brake system ________.
4.
At 55 mph on dry pavement, the air brake lag distance is how many feet?
5.
Your truck has a dual air system and one of the systems loses its pressure. What will happen?
6.
The brake system that applies and releases the brakes when the driver uses the brake pedal is the ________ brake system.
7.
The supply pressure gauge shows how much pressure:
8.
The low air pressure warning signal indicates:
9.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
10.
Normally during anti-lock braking, the driver:
11.
Which braking system applies and releases the parking brakes when you use the parking brake control?
12.
If the low air warning comes on while you are driving, you should:
13.
If your truck or bus has dual parking control valves, you can use pressure from a separate tank to:
14.
If the low air pressure warning light comes on, you should:
15.
After the initial pressure drop, air leakage for combination vehicles should be less than:
16.
How should the air leakage rate be tested?
17.
Why should you check the brake adjustment often?
18.
If one air system is very low on pressure _______.
19.
The most common type of foundation brake is?
20.
During a normal drive, the spring brakes are held back by _____.
21.
Vehicles with air brakes _________.
22.
To check the air compressor governor's "cut in" and "cut out" pressures you need to _________.
23.
The parking brake should be used:
24.
Manual air tank drains require:
25.
What is an alternative name for a brake pedal?