Air Brakes #2
Air Brakes Endorsement Test | Mississippi 2025 #2 Page 3 of 4
Train for FREE online with our Mississippi 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 MS 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 . Truck tractors with air brakes that were built on or after March 1, 1997 are equipped with:
Anti-Lock Braking Systems (ABS).
Truck tractors with air brakes that were manufactured on or after March 1, 1997 are required to be equipped with Anti-Lock Braking Systems (ABS). ABS is required in any other type of vehicle with air brakes that was manufactured on or after March 1, 1998.
14 . Most heavy-duty vehicles use:
Quadruple air brake systems.
Most heavy-duty vehicles use dual air brake systems, in which there are two separate braking systems operated by a single set of controls. Each system operates the brakes on different axles.
15 . Lights that indicate that anti-lock brakes are not working are:
Vehicles equipped with Anti-Lock Braking Systems (ABS) have yellow malfunction lights to indicate issues in the braking system.
16 . What happens if the air pressure in a system's air tanks falls below 60 psi?
The vehicle should stop.
In an air brake system, a low pressure warning signal should activate if the pressure in the air tanks falls to a level below 60 psi. This signal may be in the form of a warning light or a wig wag.
17 . What do anti-lock brakes do?
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.
18 . Failing to drain air tanks could result in:
In an air brake system, the air tanks must be periodically drained to remove accumulations of water and compressor oil. If water is not removed, it could freeze in cold weather and cause brake failure.
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2025 Mississippi | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in Mississippi, you must already possess a Commercial Driver's License (CDL). Then, pass the Hazardous Materials Knowledge Test at your local DMV. After passing, you'll need to undergo a TSA background check. Once cleared, pay the endorsement fee to have the Hazmat endorsement added to your CDL.
To obtain a CDL Hazmat license, you must first have a Commercial Driver's License (CDL). Then, you need to pass the Hazardous Materials Knowledge Test. You should be at least 21 years old, have no disqualifying criminal offenses, and pass a TSA Security Threat Assessment. It's also recommended to have good driving records and physical health.
When applying for a CDL Hazmat endorsement, you need to provide proof of U.S. citizenship or lawful permanent residency (like a passport or birth certificate), your valid Mississippi driver's license, and your Social Security number. You also need to submit a Medical Examiner's Certificate, proof of residency in Mississippi, and complete the TSA background check.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test covers topics like loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures. Passing this test is necessary to receive the Hazmat endorsement on your Commercial Driver's License (CDL).
The written test for the CDL Hazmat endorsement covers various subjects, including identification of hazardous materials, loading and unloading procedures, use of placards and labels, emergency response procedures, and federal regulations related to hazardous materials transportation. It also tests knowledge on the handling and transport of specific types of hazardous materials.
Yes, there are extra charges linked to acquiring a CDL Hazmat endorsement. Costs can include the application fee, fingerprinting fee, and background check fee. However, these fees can vary by state and the specific type of endorsement. It's recommended to check with your local DMV or similar agency for the most accurate and up-to-date information.
Yes, background checks and security clearances are mandatory for the CDL Hazmat endorsement. The Transportation Security Administration (TSA) conducts a federal background check, including fingerprinting. The applicant must not have any disqualifying criminal offenses. This process ensures that hazardous materials are transported safely and securely by trustworthy individuals.
Yes, specialized training is mandatory for the CDL Hazmat endorsement. Applicants must pass a written test to demonstrate knowledge of hazardous materials. After passing the test, they receive a certificate of completion. This certification is then used to obtain the Hazmat endorsement on a CDL. The endorsement must be renewed periodically, which may require additional training or testing.
No, you cannot legally transport hazardous materials without a valid CDL Hazmat endorsement in Mississippi. This endorsement is required by federal law and ensures that drivers are properly trained to handle and transport hazardous materials safely. Violating this law can result in severe penalties, including fines and suspension of your CDL.
Yes, you can add the CDL Hazmat endorsement to your current CDL license. You don't need to apply for a new license. However, you will need to pass a written test and undergo a TSA security threat assessment, which includes fingerprinting and a background check. Once you've passed these, the endorsement can be added to your existing CDL.
