Air Brakes Endorsement Test | Alabama 2024 #2

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 2024, 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.

Number of Question 25

Passing Score 20

Number of Tests 20

1 . In a dual air brake system:

Each system has separate air tanks, hoses, and lines.

The systems share air tanks, but each has its own separate hoses and lines.

Each system uses the same lines and hoses.

One system is the main braking system and a second system is ready to be used if the first one fails.

A dual air brake system is made up of two separate air brake systems. The systems share a single set of brake controls, but each has its own air tanks, hoses, and lines.

2 . During a static leakage test, the maximum leakage rate for a triple combination vehicle with air brakes is ____ in a minute.

3 psi

5 psi

7 psi

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.

3 . If the low air pressure warning signal comes on in a vehicle with air brakes, the driver should:

Test the brakes while driving, but continue driving if nothing seems wrong.

Immediately stop driving.

Drive with the hazard lights activated.

If the low air pressure warning signal comes on while you are operating a vehicle with air brakes, you should stop and safely park the vehicle as soon as possible. It is essential that you are able to stop safely while you still have some braking power remaining.

4 . What do anti-lock brakes do?

Help a driver avoid wheel lockup

Lock up the front wheels

Prevent a vehicle from accelerating while traveling uphill

Prevent a vehicle from accelerating while traveling downhill

The function of an Anti-Lock Braking System (ABS) is to prevent the vehicle's wheels from locking up from hard brake application.

5 . The air compressor governor controls:

When the air compressor pumps air into the air storage tanks.

How fast air is pumped into the air storage tanks.

The temperature of air pumped into the air storage tanks.

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 . Brakes can get out of adjustment quickly, especially:

If they are hot.

In the winter time.

If they are used frequently.

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.

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2024 Alabama | Frequently Asked Questions

To acquire a CDL Hazmat endorsement in Alabama, you must have a valid Alabama CDL. Next, pass the Hazardous Materials Endorsement Knowledge Test. Complete a background check and fingerprinting through the Transportation Security Administration (TSA). Finally, submit your application with the required fees to the Alabama Department of Public Safety. Training courses are recommended but not mandatory.

To obtain a CDL Hazmat license, you need to have a valid Commercial Driver's License (CDL). You must also pass the Hazardous Materials Endorsement Knowledge Test. Prior to applying for the endorsement, you must clear a TSA background check. Be aware that certain criminal offenses may disqualify you from obtaining the Hazmat endorsement.

When applying for a CDL Hazmat endorsement, you need to provide a completed application form, proof of U.S. citizenship or lawful permanent residency (like a passport or birth certificate), and your current valid Commercial Driver's License (CDL). A medical examiner's certificate may also be required. Lastly, you must pass the TSA background check and fingerprinting.

Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test covers topics such as loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures. Passing this test is mandatory for obtaining the Hazmat endorsement on your Commercial Driver's License (CDL).

The CDL Hazmat endorsement written test covers a range of subjects including: understanding the different types of hazardous materials and their associated risks, proper loading and unloading procedures, correct use of placards and labels, emergency response procedures in case of an incident, and regulations for transport of hazardous materials. It's designed to ensure drivers can safely handle hazardous cargo.

Yes, there are extra charges associated with obtaining a CDL Hazmat endorsement. In Alabama, the endorsement itself costs $20. However, you also need to account for the cost of the TSA background check and fingerprinting, which is approximately $86.50. These prices can vary slightly, so it's best to check the current fees when you apply.

Yes, to receive a CDL Hazmat endorsement, you're required to undergo a federal security threat assessment conducted by the Transportation Security Administration (TSA). This includes a fingerprint-based criminal history records check. The goal is to ensure that you don't pose a security threat and are fit to transport hazardous materials safely.

Yes, specialized training is required for a CDL Hazmat endorsement. This includes passing a written test covering hazardous materials regulations and safe handling procedures. Candidates must also pass a Transportation Security Administration (TSA) background check. While not mandatory, many choose to complete a training course to prepare for the test and handle hazardous materials safely.

No, you cannot transport hazardous materials without a valid CDL Hazmat endorsement in Alabama. The endorsement is required by federal law to ensure that drivers have the necessary knowledge and skills to safely transport hazardous materials. Driving without this endorsement could result in serious penalties, including fines and suspension of your CDL license.

Yes, you can add the CDL Hazmat endorsement to your existing CDL license. You don't need to apply for a new CDL. However, you must pass the Hazmat knowledge test, undergo a TSA background check, and pay the required fees. Once these steps are complete, the endorsement will be added to your current CDL license.