Air Brakes #1
Air Brakes Endorsement Test | North Carolina 2025 #1
Train for FREE online with our North Carolina 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 NC 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 . When traveling down a steep downgrade:
On long and/or steep downgrades, you should primarily use engine braking to control the speed of your vehicle. Use your brakes only as a supplement to this effect.
2 . You should test the low pressure warning signal by:
It is essential that your low pressure warning light functions properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.
3 . Failing to drain the tanks in an air brake system can result in:
Too much fuel being carried.
In an air brake system, the air storage tanks must be drained to remove accumulated water and compressor oil. Failing to do this can cause damage. For example, water that has built up in the system could freeze in cold weather and cause brake failure.
4 . Pressing and releasing a brake pedal unnecessarily can:
Create a loud noise.
In an air brake system, pressing and releasing the brake pedal unnecessarily can release air from the braking system faster than the compressor can replace it.
5 . Brake fading is caused when:
Brakes are wet.
Using the brakes excessively will cause them to overheat, making them less effective. This is referred to as "fading."
6 . Some air brake systems use alcohol:
To reduce the risk of rust forming on air brake valves.
Some air brake systems contain an alcohol evaporator. This device introduces alcohol into the braking system to inhibit the formation of ice.
2025 North Carolina | Frequently Asked Questions
To acquire a CDL Passenger endorsement in North Carolina, you must first have a Commercial Driver's License (CDL). Then, you'll need to pass a passenger transport test. This involves studying for the test using the North Carolina CDL Handbook, and then scheduling the test at a local DMV office. Successful completion will grant you the endorsement.
To obtain a CDL Passenger license in North Carolina, you must have a valid CDL, be at least 21 years old, and pass a passenger transport test. This test includes both a written knowledge test and a skills test. You'll also need to pass a physical examination and provide proof of U.S citizenship or lawful permanent residency.
While North Carolina doesn't require specific training to secure a CDL Passenger endorsement, it's highly recommended to prepare for the written and skills tests. Experience driving larger vehicles could be beneficial. Studying the North Carolina CDL Handbook and practicing the skills test in an appropriate vehicle can significantly improve your chances of passing.
Yes, to obtain a CDL Passenger endorsement in North Carolina, you must pass a written knowledge test specifically about passenger transport. This test covers topics like vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks.
During the CDL Passenger endorsement assessment in North Carolina, you will need to showcase skills such as proper vehicle inspection, safe passenger loading/unloading, effective communication with passengers, handling emergency situations, and following all traffic laws. Additionally, you may be required to demonstrate maneuvers like parallel parking, backing up, and making tight turns while maintaining control and passenger safety.
No, you cannot legally transport passengers in North Carolina without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to operate a vehicle designed to carry 16 or more passengers, including the driver. Without it, you could face legal penalties, including fines and suspension of your driving privileges.
Yes, you can add a CDL Passenger endorsement to your existing license in North Carolina. You do not need a new application. However, you will need to pass the passenger transport written test and pay a fee. If you already have a CDL, the endorsement is added to your license upon successful completion of the test.
Yes, there are specific limitations for drivers with a CDL Passenger endorsement in North Carolina. These include restrictions on the number of passengers, vehicle size, and type of vehicle that can be operated. Additionally, drivers must maintain a clean driving record and are subject to random drug and alcohol testing to ensure the safety of all passengers.
Yes, there are age-related prerequisites for acquiring the CDL Passenger endorsement in North Carolina. You must be at least 21 years old to drive a commercial motor vehicle across state lines, carry hazardous materials, or transport passengers. However, if you are at least 18 years old, you can get a CDL for intrastate (within the state) driving.
With a CDL Passenger endorsement in North Carolina, you are eligible to operate a wide range of passenger vehicles. This includes buses, shuttles, and any other vehicle designed to carry 16 or more passengers, including the driver. It also allows you to operate vehicles used for transporting students to and from school or school-related functions.