Air Brakes #1
Air Brakes Endorsement Test | New Hampshire 2025 #1 Page 4 of 4
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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19 . Do not use the parking brake when parking if:
There is water on the ground.
A parking brake should not be used if the vehicle's brakes are very hot from use on a steep downgrade or if the brakes are very wet and temperatures are freezing. Using the parking brake when brakes are hot could cause damage to the brakes, and using the brakes when they are wet in freezing weather may cause the brakes to ice up, rendering the vehicle immobile.
20 . 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.
21 . Emergency brakes are:
Only required when transporting hazardous materials.
All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes.
22 . 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.
23 . 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.
24 . If you’re driving and the ABS warning light comes on, it means:
The ABS needs to be activated.
Vehicles with Anti-Lock Braking Systems (ABS) have yellow malfunction lights to alert the driver if something is wrong with the braking system. If these lights activate, the driver may have lost ABS on one or more wheels.
25 . Why do large vehicles use air brakes?
If used and maintained properly, air brakes are a safe and effective way to stop large, heavy vehicles.
2025 New Hampshire | Frequently Asked Questions
In New Hampshire, to acquire a CDL Passenger endorsement, you must first have a commercial driver's license (CDL). Then, you need to pass the passenger endorsement knowledge test. After passing the test, you'll need to complete a skills test in the type of vehicle you wish to drive. The New Hampshire DMV provides the necessary testing and information.
To obtain a CDL Passenger license in New Hampshire, you must meet certain criteria. You must be at least 21 years old, hold a valid regular driver's license, pass a written knowledge test, obtain a medical certificate, pass a skills test in a passenger vehicle, and pay the required fees. Additionally, you must have a clean driving record and provide proof of legal presence in the United States.
While specific training isn't mandated by law in New Hampshire, it's highly recommended to undergo professional training before attempting the CDL Passenger endorsement test. Training can provide valuable experience and knowledge, increasing your chances of passing the test. However, you must have a valid CDL before you can apply for a passenger endorsement.
Yes, to get a Passenger endorsement on your CDL in New Hampshire, you must pass a written knowledge test specifically designed for this endorsement. The test covers topics like inspecting passenger vehicles, loading/unloading passengers, and emergency procedures. After passing the written test, you must complete a skills test in a passenger vehicle.
During the CDL Passenger endorsement assessment in New Hampshire, you'll need to showcase skills such as safe loading and unloading of passengers, handling emergency situations, proper use of bus controls and equipment, performing vehicle inspections, and understanding passenger safety regulations. Proficiency in maneuvers like backing, turning, and stopping is also essential.
No, you cannot legally transport passengers in New Hampshire without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to drive a vehicle designed to carry 16 or more passengers, including the driver. Driving such a vehicle without the proper endorsement can result in heavy fines and penalties.
Yes, you can add the CDL Passenger endorsement to your existing CDL in New Hampshire. You don't need to apply for a new license, but you will need to pass the Passenger endorsement written knowledge test and skills test. After passing, the endorsement will be added to your current CDL.
Yes, there are specific restrictions for drivers with a CDL Passenger endorsement in New Hampshire. These include maintaining a clean driving record, passing regular physical examinations, and adhering to federal hours-of-service regulations. Additionally, drivers are required to enforce passenger conduct rules and ensure safety regulations are met at all times.
Yes, in New Hampshire, to acquire a CDL passenger endorsement, you must be at least 21 years old. This is to comply with federal regulations, which state that drivers must be 21 to drive a commercial vehicle across state lines or carry hazardous materials. This age requirement applies even if you're driving within New Hampshire.
With a CDL Passenger endorsement in New Hampshire, you will be eligible to operate vehicles such as buses, shuttle vans, and other vehicles designed to carry 16 or more passengers, including the driver. This endorsement also allows you to drive vehicles used for transporting students to and from school or school-related activities.