Air Brakes #1
Air Brakes Endorsement Test | Alabama 2025 #1
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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1 . During a static leakage test, the maximum leakage rate for a triple combination vehicle with air brakes is ____ in a minute.
9 psi
When performing a static leakage test on a triple combination vehicle with air brakes, the leakage rate should be no more than 5 psi in one minute. If air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.
2 . Brakes can get out of adjustment quickly, especially:
Brakes are particularly prone to getting out of adjustment if they are hot. Be sure to routinely check the adjustment of your brakes. For a vehicle to be safely controlled, all brakes must be properly functioning and adjusted.
3 . All air tanks must include:
A warning sticker.
Air brake system tanks must contain drain valves. These valves are used to drain accumulated oil and water from the tanks and may be either manually or automatically operated.
4 . The ____ tells a driver how much pressure is in the air tanks.
Drum brake
A vehicle that is equipped with air brakes must also be equipped with a supply pressure gauge. This gauge tells the driver how much air pressure is in each of the vehicle's air tanks.
5 . The air compressor governor controls:
The speed of the vehicle.
In an air brake system, the air compressor governor controls when the air compressor pumps air into the air storage tanks.
6 . What should happen before the air pressure in an air brake system tank falls below 55 psi?
The low air pressure warning signal must activate before the air supply pressure drops below 55 psi in the air tank. If the warning signal does not turn on when being tested during an inspection, the vehicle is not safe to drive.
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.