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.
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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.
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2025 New Hampshire | Frequently Asked Questions
A CDL Class B license in New Hampshire is designed for operators of commercial vehicles with a GVWR of 26,001 pounds or more, or a vehicle towing another not exceeding 10,000 pounds. This class includes straight trucks, large buses, segmented buses, box trucks, dump trucks with small trailers, and trucks towing small trailers.
A Class B CDL license in New Hampshire allows you to operate commercial vehicles such as straight trucks, large buses, segmented buses, box trucks, and dump trucks with small trailers. You can also operate a vehicle towing another vehicle not exceeding 10,000 pounds. However, it does not permit operation of combination vehicles (Class A).
In New Hampshire, to acquire a Class B CDL, you must be at least 18 years old (21 for interstate driving), possess a valid New Hampshire driver's license, and pass a vision test. You also need to pass a general knowledge test and a skills test, which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving exam.
To qualify for a Class B CDL license in New Hampshire, you must be at least 18 years old. However, if you intend to drive commercial vehicles across state lines (interstate driving), or carry hazardous materials, you must be at least 21 years old. Always ensure to check the latest regulations.
While a Class B CDL license in New Hampshire allows you to operate certain types of commercial vehicles, specific endorsements may be required to drive particular vehicles or carry specific cargo. For instance, you'll need a Passenger (P) endorsement for buses, School Bus (S) endorsement for school buses, and a Hazardous Materials (H) endorsement for transporting hazardous materials.
The Class B CDL skills assessment in New Hampshire includes three parts: the pre-trip inspection, basic vehicle control, and on-road driving. Candidates must demonstrate knowledge of vehicle inspections, show ability to control the vehicle by backing and maneuvering in a confined space, and display safe driving practices on public roads.
Yes, Class B CDL license holders in New Hampshire are limited to driving single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or a vehicle towing another not exceeding 10,000 pounds GVWR. They can't drive a vehicle that falls under Class A (like tractor-trailers) unless they have the appropriate endorsement or upgrade to a Class A CDL.
In New Hampshire, the written Class B CDL test is primarily offered in English. However, some testing centers may provide assistance or translations in other languages. It's recommended to contact the testing center directly to inquire about language accommodations. Federal regulations require all CDL holders to have a basic understanding of English for safety reasons.
Yes, you can request accommodations for the Class B CDL written exam in New Hampshire if you have a disability. The Division of Motor Vehicles (DMV) complies with the Americans with Disabilities Act (ADA) to provide reasonable accommodations. Contact your local DMV office in advance to discuss your needs and arrange suitable accommodations for your test.
Yes, if you don't pass the Class B CDL written test in New Hampshire, you can retake it. However, you may have to wait a specific period before you can attempt the test again. You might also have to pay a re-examination fee each time you retake the test. It's advisable to study thoroughly before reattempting.
