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.
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2025 Alabama | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Alabama, you'll first need to hold a valid Commercial Driver's License (CDL). Next, study the relevant sections of the Alabama CDL manual and take the passenger endorsement knowledge test at your local DMV. Once you pass, you'll be authorized to drive vehicles like buses and shuttles in Alabama.
To obtain a CDL Passenger license in Alabama, you must be at least 21 years old, possess a valid CDL, and pass the Passenger Endorsement Knowledge Test. Some drivers may also need to pass a skills test in the type of vehicle they will be driving. Additionally, you must have a clean driving record and pass a medical examination.
While Alabama doesn't mandate specific training for a CDL Passenger endorsement, it's beneficial to be well-prepared. You need to pass the passenger endorsement knowledge test, so studying the relevant sections of the Alabama CDL manual is crucial. Some applicants opt for professional training programs to gain practical experience and improve their chances of passing the test.
Yes, in Alabama, to acquire a CDL Passenger endorsement, you must pass the passenger endorsement knowledge test. This test focuses on specific knowledge related to carrying passengers, like loading/unloading, emergency procedures, and passenger safety. It's an additional exam to the general CDL tests and is mandatory for this endorsement.
For the CDL Passenger endorsement, you'll need to showcase skills like pre-trip vehicle inspection, proper use of mirrors, executing turns and stops, safe lane changes, and emergency procedures. You'll also need to demonstrate proficiency in loading/unloading passengers, responding to passenger distress, and operating special features like wheelchair lifts.
No, you cannot legally transport passengers in Alabama without a valid CDL Passenger endorsement. This endorsement is required for drivers who wish to drive any vehicle designed to transport 16 or more passengers, including the driver. Driving without the proper endorsement can lead to serious legal consequences, including fines and suspension of your CDL.
Yes, you can add the CDL Passenger endorsement to your existing CDL. You don't need a new license, but you must pass the passenger endorsement knowledge test. Once you pass the test, the endorsement is added to your existing CDL. Remember, this endorsement is necessary for driving vehicles designed to transport 16 or more passengers.
Yes, there are limitations and restrictions for drivers with a CDL Passenger endorsement in Alabama. They are not allowed to operate a commercial vehicle with more than 16 passengers, including the driver. Additionally, they must have a valid medical certificate and are subject to regular drug and alcohol testing.
Yes, there are age-related prerequisites for acquiring the CDL Passenger endorsement in Alabama. The minimum age requirement is 21 for drivers operating commercial vehicles across state lines (interstate) or transporting hazardous materials. For intrastate transport (within Alabama), the minimum age is 18. It's important to note that these age requirements apply to all CDLs, not just passenger endorsements.
With a CDL Passenger endorsement, you are eligible to operate vehicles designed to carry 16 or more passengers, including the driver. This includes but is not limited to city buses, school buses, tour buses, and shuttle buses. However, if you plan on driving a school bus, you will need an additional School Bus (S) endorsement.
