Air Brakes #2
Air Brakes Endorsement Test | Alabama 2025 #2 Page 3 of 4
Train for FREE online with our Alabama 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 AL 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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13 . Which type of brakes do most heavy-duty vehicles have?
Gravity brakes
For safety, most heavy-duty vehicles are equipped with dual air brake systems.
14 . An alcohol evaporator in an air brake system:
Some air brake systems include an evaporator that introduces alcohol into the system. The alcohol can help prevent ice from forming within the system.
15 . Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.
Vehicles with ABS have yellow malfunction lamps to alert drivers when the braking systems are not working. Be sure you know where the malfunction lamp on your vehicle is before beginning a trip.
16 . On flat surfaces, wheel chocks:
In situations where a driver cannot use a parking brake, wheel chocks can be used to hold a parked vehicle in place on a level surface.
17 . When operating a vehicle with a dual brake system, a driver should:
Pump the pedal about 20 times to build pressure, then begin driving.
Before driving a vehicle with a dual air system, allow time for the air compressor to build up a minimum pressure of 100 psi in both the primary and secondary systems.
18 . A vehicle equipped with an Anti-Lock Braking System (ABS) uses a ____ light to warn that the system is not working properly.
White
Anti-Lock Braking System (ABS) malfunction lamps are usually yellow. Even if the ABS isn't working properly, a driver will still have access to the vehicle's usual braking functions.
See the exact questions that will be on the 2025 Alabama 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 Alabama | Frequently Asked Questions
A CDL Class A license in Alabama allows holders 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 typically includes tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds.
A Class A CDL license in Alabama allows operation of combination vehicles like tractor-trailers, truck and trailer combinations, and tank vehicles. It also includes operating flatbeds, livestock carriers, and any vehicle towing another vehicle over 10,000 pounds. Basically, it covers vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more.
To obtain a Class A CDL license in Alabama, you must be at least 21 years old (18-20 years for intrastate driving), have a valid Alabama driver's license, pass a vision test, and complete a written knowledge test. Additionally, you'll need to pass a skills test which includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving exam.
In Alabama, you must be at least 18 years old to qualify for a Class A CDL for intrastate driving (within Alabama only). However, if you plan to drive interstate (across state lines) or haul hazardous materials, federal regulations require you to be at least 21 years old.
Endorsements are not required for a Class A CDL license in Alabama, but they can broaden the range of vehicles you can operate. For example, a T endorsement allows you to tow double or triple trailers, an H endorsement permits hazardous materials transport, while a P endorsement allows passenger vehicle operation. These endorsements require additional testing.
The Class A CDL skills test in Alabama includes three parts: a pre-trip vehicle inspection to verify your ability to assess the safety of your vehicle, a basic controls test to evaluate your basic maneuvering skills, and an on-road driving examination to demonstrate your practical driving abilities under various traffic conditions.
Yes, Class A CDL license holders in Alabama may face certain limitations. These can be based on the driver's medical condition, driving ability or the type of vehicle driven. For example, a driver may have restrictions for not wearing corrective lenses, not driving a manual transmission, or not operating a truck with full air brakes.
In Alabama, the written Class A CDL test is primarily offered in English. However, some locations may provide the test in Spanish. It's important to note that even if the written test is passed in another language, all drivers must demonstrate a basic understanding of English to communicate with officials and complete the required forms.
Yes, you can request accommodations for the Class A CDL written test if you have a disability. The Americans with Disabilities Act requires test centers to provide reasonable accommodations. These may include extra time, a quiet room, or a reader. Contact your local DMV in Alabama to discuss your specific needs and arrange appropriate accommodations.
Yes, if you don't pass the Class A CDL written test in Alabama, you can retake it. There is a waiting period of one day before you can retake the exam. Also, you may be required to pay a retesting fee. It's advisable to study the CDL manual thoroughly before reattempting the test.
