Air Brakes #2
Air Brakes Endorsement Test | Mississippi 2025 #2 Page 2 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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7 . Front wheel braking works:
Under most conditions.
Front wheel braking is effective under all road conditions. It is unlikely that you will experience a front wheel skid, even on ice.
8 . How is water and compressor oil removed from the bottom of an air storage tank?
A sponge is used to soak up the water and oil.
Water and compressor oil are removed from air storage tanks through a drain valve. The water and oil can damage the brakes if left to accumulate in the system. Manually operated tanks must be drained every day to remove this build-up.
9 . In a dual air brake system, if one air system is very low on pressure:
In a dual air brake system, either the front or rear brakes will not be fully operable if one of the air systems gets too low on pressure. If the air pressure in either tank gets too low while you are driving, you should exit the road and park as soon as possible.
10 . What is brake lag?
How faded the brakes are
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work. On vehicles with hydraulic brakes, the brakes work instantly when the pedal is pressed.
11 . Brake fade is a result of:
If brakes are overused, they can become too hot. This overheating causes them to fade, making them less effective at slowing the vehicle.
12 . The most common type of foundation brake used is the:
P-cam disc brake.
The most common type of foundation brake is an s-cam drum brake.
See the exact questions that will be on the 2025 Mississippi 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.
Cameron tells us how he purchased the CDL exam, and found it to be a useful tool which helped him pass the exam and find a job.
2025 Mississippi | Frequently Asked Questions
A CDL Class A license in Mississippi allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is over 10,000 pounds. This typically includes tractor-trailer combinations.
A Class A CDL license in Mississippi permits the operation of vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. Basically, it covers any combination of vehicles with a gross combination weight rating (GCWR) of 26,001 pounds or more if the towed vehicle is over 10,000 pounds.
To obtain a Class A CDL in Mississippi, you must be at least 21 years old (18 for intrastate travel), possess a valid Mississippi driver's license, pass a vision test, and complete a written knowledge exam. You'll also need to pass skills tests in a vehicle representative of the class you're applying for, and meet medical requirements.
In Mississippi, you must be at least 21 years old to qualify for a Class A CDL license for interstate driving. However, you can be 18 years old to apply for a CDL for intrastate driving, which limits you to driving within the state of Mississippi only.
Endorsements aren't required for a Class A CDL license, however, they can enhance your license. They allow you to drive specific types of vehicles like tank vehicles, passenger vehicles, school buses or transport hazardous materials. To get an endorsement, you must pass additional written and skills tests related to the specific type of vehicle.
The Class A CDL skills test in Mississippi encompasses three sections: a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving test. These tests evaluate your ability to inspect your vehicle before the trip, control the vehicle during typical maneuvers, and drive safely in various road and traffic conditions.
Yes, there are limitations. Class A CDL license holders in Mississippi may be restricted based on the type of vehicle they tested in. For instance, if the test was taken in an automatic vehicle, they can't drive a manual truck. Other limitations could be related to air brakes, passengers, tank vehicles, and hazardous materials.
In Mississippi, the written Class A CDL test is generally conducted in English. However, some states may offer the test in Spanish. Non-English speakers can usually use a dictionary or bring an interpreter. It's important to check with the local DMV office for specific language accommodations. Remember, federal regulations require all CDL holders to read and speak English.
Yes, you can request accommodations for the Class A CDL written test if you have a disability. Mississippi's Department of Public Safety works to ensure accessibility for all test-takers. Accommodations may include extra time, a separate testing room, or assistive technology. You should contact your local testing center in advance to discuss your needs and arrange accommodations.
Yes, if you don't pass the Class A CDL written test in Mississippi, you can retake it. However, you may have to wait a specified period before you can reattempt it. It's also likely that you'll have to pay a retesting fee. Check with the Mississippi Department of Public Safety for specific rules and regulations regarding retakes.
