Knowledge Test Class B #1
Class B Driving Test | Mississippi 2025 #1 Page 7 of 7
Train for FREE online with our Mississippi class B license 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 CDL class B permit 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 CDL class B requirements may vary from state to state.
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43 . In a vehicle with dual air brakes, a leak in one system ____ the second system.
A dual air brake system is made up of two separate air brake systems. If there is an air leak in one system, it may not affect the other.
44 . If you don't know if there is enough space for your vehicle to pass under a bridge, you should:
Drive on the shoulder.
If you can't tell if your vehicle will have room to fit under a bridge or other overhead object, you should slow down and find an alternate route, if possible.
45 . ____ is a thin layer of ice that forms on road surfaces.
Blue ice
Black ice is a layer of ice that is thin and clear enough for the road to be visible through it. This makes the road look as if it is merely wet.
46 . Why should the steps of a pre-trip inspection be done in the same order each time?
Pre-trip inspections should be conducted in the same way every time. This will reinforce the steps, making it less likely that you will forget to inspect something important.
47 . The parking brake should be:
Used to stop the vehicle in normal driving.
The parking brake should be applied every time you park your vehicle.
48 . What should happen if the air pressure in the air brake system tanks falls below 60 psi?
The vehicle should stop.
On vehicles with air brakes, a low air pressure warning signal will come on if the pressure in the air tanks falls below 60 psi. On large buses, the signal may activate at 80 to 85 psi.
49 . When pulled over to the side of the road, you should:
When stopped on the side of the road, be sure to turn on your vehicle's four-way emergency flashers, especially during times of lowered visibility. Place warning devices within 10 minutes of being stopped.
50 . When entering fog, you should:
Slow down.
If at all possible, it is best to avoid driving in fog. However, if you must drive through fog, slow down before reaching it.
See the exact questions that will be on the 2025 Mississippi DMV exam.
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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.
