Combination #2
Combination Vehicles Practice Test | Mississippi 2025 #2 Page 2 of 3
Train for FREE online with our Mississippi CDL combination vehicle 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 combination 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 DMV requirements for issuing a combination license may vary from state to state.
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8 . The service air line is attached to the:
Steering wheel.
The service air line carries air and is controlled by either the foot brake or trailer hand brake. The service air line is attached to relay valves, which allow the trailer brakes to be applied quickly.
9 . Rollovers are most likely to happen when:
It is raining.
Rollovers happen when an operator turns too fast. Drivers should be sure to slow down before entering turns and curves, especially when transporting a fully-loaded rig.
10 . The emergency air line:
Prevents skids.
The emergency air line (also known as the supply line) has two functions. The first is to supply air to the trailer air tanks on a combination vehicle, and the second is to control the emergency brakes.
11 . If unsure if a trailer has an Anti-Lock Braking System (ABS), you can:
If you do not know whether or not a trailer is equipped with ABS, look under the vehicle for the electronic control unit and wheel speed sensor wires coming from the back of the brakes.
13 . When backing up while coupling a trailer, the tractor should be positioned:
When backing up to couple a trailer, you should position the tractor directly in front of the trailer. Trying to couple while backing at an angle could cause the trailer to move and the landing gear to break.
14 . Failure to keep the fifth wheel plate properly greased could:
Affect the lights.
Failure to keep the fifth wheel plate properly lubricated can create friction between the tractor and trailer, causing steering problems.
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.