Air Brakes #2
Air Brakes Endorsement Test | New Hampshire 2025 #2
Train for FREE online with our New Hampshire CDL air brake test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a NH Class A/Class B driver license in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that the requirements for CDL may vary from state to state.
25
20
20
1 . A slack adjuster should move no more than ____ from where it is attached to the push rod.
Before a trip, you should check each slack adjuster after parking, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure that they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
2 . In a vehicle with dual parking control valves, a separate air tank can be used:
In a vehicle with dual parking control valves, there is a separate air tank that can be used to temporarily release the spring brakes if they have been activated due to low air pressure. Pushing in the proper control will release the spring brakes for a short period of time, allowing the driver to move the vehicle in an emergency.
3 . To use the stab braking method in an emergency situation, you should:
Apply the emergency brake.
The stab braking method for emergency stops involves fully applying the brakes until they lock up. The brakes are then released until the wheels start rolling, then the process is repeated.
4 . During an applied leakage test, the maximum leakage rate for a triple combination vehicle is ____ in a minute.
It is important to know the maximum air loss rate that is safe for your specific vehicle. A triple combination should have a leakage rate no higher than 6 psi in a minute during an applied leakage test.
5 . To confirm that a trailer has ABS, you can:
Remove a tire and look for the ABS sensor on the axle.
If you are unsure if a trailer is equipped with an Anti-Lock Braking System (ABS), look under the vehicle for the electronic control unit and wheel speed sensor wires coming from the back of the brakes.
6 . What must be on an air tank in an air-braked vehicle?
An oxidizer
All air tanks on air-braked vehicles must have one-way check valves located between the air compressor and the first reservoir. This prevents air from flowing out in the event of a leak.
See the exact questions that will be on the 2025 New Hampshire DMV exam.
99.2% of people who use the cheat sheet pass the FIRST TIME
Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
Cameron tells us how he purchased the CDL exam, and found it to be a useful tool which helped him pass the exam and find a job.
2025 New Hampshire | Frequently Asked Questions
A CDL Class A license in New Hampshire is defined as a commercial driver's license that allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the towed vehicle(s) have a GVWR of more than 10,000 pounds. This includes tractor-trailers and truck and trailer combinations.
With a Class A CDL license in New Hampshire, you can operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. The license allows you to drive any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more.
To obtain a Class A CDL in New Hampshire, you must be at least 18 years old (21 for interstate driving), possess a valid New Hampshire driver's license, pass a vision test, and successfully complete a written knowledge test. Additionally, you must pass a skills test which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving examination.
In New Hampshire, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving, which means driving only within the state. However, to drive across state lines or handle hazardous materials, you must be at least 21 years old.
Specific endorsements are not required for a Class A CDL license, but they can provide additional privileges. For example, a Hazmat endorsement allows the transportation of hazardous materials, while a Tanker endorsement permits the operation of tank vehicles. These endorsements require additional written exams. The School Bus endorsement requires both written and skills tests.
The Class A CDL skills test in New Hampshire encompasses a pre-trip vehicle inspection to assess your ability to determine if your vehicle is safe to drive. You'll also undergo a basic controls test to evaluate your ability to control the vehicle. Lastly, you'll take an on-road driving examination to demonstrate your practical driving skills in various traffic situations.
Yes, Class A CDL license holders in New Hampshire may face restrictions based on their driving ability or the type of vehicle they tested in. For instance, if a driver takes the test in an automatic transmission vehicle, they'll be restricted to driving automatics. Other restrictions may relate to air brakes, passengers, or hazardous materials.
In New Hampshire, the written Class A CDL test is primarily offered in English. However, some locations may offer the test in Spanish. It's important to note that all CDL applicants must be able to read and speak English well enough to converse, understand traffic signs, respond to official inquiries, and make entries on reports and records.
Yes, individuals with disabilities can request accommodations for the Class A CDL written test in New Hampshire. The Division of Motor Vehicles is committed to complying with the Americans with Disabilities Act (ADA). Accommodations may include extended time, a quiet room, or a reader. Requests should be made in advance to ensure proper arrangements.
Yes, if you fail the Class A CDL written test in New Hampshire, you can retake it. However, you must wait ten days between each attempt. There's no limit to the number of times you can retake the test, but each attempt requires payment of a retest fee. It's advised to study thoroughly before retesting.
