Knowledge Test Class B
This license is required for driving a single vehicle with a GVWR of more than 26,001 pounds, and a trailer not to exceed 10,000 pounds gross vehicle weight rating, or a vehicle designed to transport 24 or more people (including the driver). To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has three or four possible answer choices. Test questions come from the Mississippi Professional Driver’s Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving.. Endorsements that may be used with a Class B CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
1. When starting the engine of a truck with a trailer, you can tell that your vehicle's ABS is not working if:
When turning on your vehicle's engine, the lights on the dash should come on and then turn off. If the ABS malfunction light stays on, the system is not working properly. In the case of a truck with a trailer, if the yellow light on the left rear of the trailer stays on once the engine has been started, the system is not working properly.
2. Parked delivery trucks may be hazardous because:
Passing parked delivery or postal trucks can be dangerous because the driver may be in a hurry and pull into traffic without warning, or may they suddenly step out of the vehicle without checking for other traffic.
3. What is removed when an air tank is drained?
In an air brake system, air tanks have drains to remove accumulations of water and compressor oil. Allowing water and oil to accumulate in the system could cause damage to the brakes.
4. When stopped on the side of the road, the driver should:
If you must stop on the side of the road, it is important to turn on your four-way emergency flashers to warn other road users.
5. The maximum amount of play that is safe on a 20-inch steering wheel is:
A steering wheel with play of more than 10 degrees may be defective. On a 20-inch wheel, this is equal to about two inches of movement at the rim of the wheel.
6. If you’re not sure how to handle a fire, you should:
If you are unsure of which method is appropriate to use to extinguish a fire, you should wait for firefighters to arrive and let them handle it. This is especially important when dealing with hazardous materials fires.
7. When doing a pre-trip inspection, you should:
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.
See the exact questions that will be on the 2024 Mississippi DMV exam.
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Frequently Asked Questions
To obtain a Class B CDL in Mississippi, you must:
1. Be at least 18 years old (21 years old to operate across state lines or transport hazardous materials).
2. Hold a valid Mississippi driver's license.
3. Obtain a DOT medical certificate by passing a physical exam from a certified medical examiner.
4. Pass the written CDL knowledge test.
5. Obtain a Commercial Learner's Permit (CLP), which allows you to practice driving with a qualified CDL holder in the same class of vehicle you are seeking to operate.
6. Complete the required amount of training and pass the skills test in a similar vehicle to the one you will be operating.
7. Pay the required fees and obtain your Class B CDL from the Mississippi Department of Public Safety (DPS).
Some examples of vehicles you can operate with a Class B CDL license include:
1. Straight trucks (such as delivery trucks and dump trucks)
2. Buses (such as school buses and city buses)
3. Box trucks
4. Large tow trucks with a trailer
5. Cement mixers
6. Garbage trucks
7. Refrigerated trucks
8. Bucket trucks (such as those used for tree trimming or electrical work)
It's important to note that if you want to operate a vehicle with a trailer weighing more than 10,000 pounds, you will need to obtain additional endorsements on your CDL. For example, if you want to operate a tractor-trailer combination, you will need to obtain a Class A CDL license.
1. Be at least 18 years old (21 years old to transport hazardous materials or to operate across state lines).
2. Hold a valid Mississippi driver's license.
3. Obtain a Department of Transportation (DOT) medical certificate by passing a physical exam from a certified medical examiner.
4. Pass the written CDL knowledge test.
5. Obtain a Commercial Learner's Permit (CLP), which allows you to practice driving with a qualified CDL holder in the same class of vehicle you are seeking to operate.
6. Complete the required amount of training and pass the skills test in a similar vehicle to the one you will be operating.
7. Pay the required fees and obtain your Class B CDL from the Mississippi Department of Public Safety (DPS).
Additionally, you will need to provide proof of your social security number and residency in Mississippi. You will also need to pass a background check and disclose any previous driving convictions or license suspensions.
It's important to note that some employers may have their own age requirements for CDL holders, so it's a good idea to check with potential employers before pursuing a CDL license. Additionally, if you are under the age of 21, you may face some restrictions on the types of cargo and routes you can drive until you reach the age of 21.
Here are the endorsements that may be required for a Class B CDL in Mississippi:
1. Passenger endorsement (P) - required if you will be operating a vehicle designed to transport 16 or more passengers, including the driver.
2. School bus endorsement (S) - required if you will be operating a school bus.
3. Tanker endorsement (N) - required if you will be transporting liquid or gaseous materials in tanks with a capacity of 1,000 gallons or more.
4. Hazardous materials endorsement (H) - required if you will be transporting hazardous materials in amounts that require placards.
To obtain these endorsements, you must pass additional written tests and meet specific requirements for each endorsement. It's important to note that some endorsements may also require additional background checks and fingerprinting.
1. Pre-trip inspection - Before you begin driving, you will need to demonstrate your knowledge of the vehicle and its components by conducting a pre-trip inspection. You will be asked to point out various parts of the vehicle and explain their function.
2. Basic vehicle control - You will be asked to demonstrate your ability to control the vehicle in various situations, such as backing up, turning, and shifting gears.
3. On-road driving - You will need to demonstrate your ability to safely operate the vehicle in real-world driving situations. This may include driving in traffic, changing lanes, turning at intersections, and completing various maneuvers such as parallel parking or backing into a dock.
During the skills test, you will be evaluated on your ability to follow proper procedures for each part of the test and your overall safety performance. You must pass all three parts of the skills test in order to obtain a Class B CDL license.
1. Air brake restriction - If you took the skills test in a vehicle without air brakes, your license will be restricted to vehicles without air brakes.
2. Passenger or school bus restriction - If you did not pass the passenger or school bus endorsement knowledge test or skills test, your license will be restricted from operating those types of vehicles.
3. Hazmat endorsement restriction - If you did not pass the hazardous materials endorsement knowledge test or have not completed a background check, your license will be restricted from transporting hazardous materials.
4. Intrastate-only restriction - If you only plan to operate commercial vehicles within the state of Mississippi, your license may be restricted to intrastate-only.
It's important to note that some restrictions and limitations may be temporary and can be removed by passing additional tests or meeting certain requirements. It's also important to follow all restrictions and limitations on your license to avoid penalties or fines.
To request accommodations, you will need to submit a request in writing along with documentation of your disability and how it impacts your ability to take the test. The documentation must be from a qualified professional such as a doctor or psychologist and should include information about your diagnosis, functional limitations, and recommendations for accommodations.
It's important to note that requests for accommodations should be made as early as possible so that the Mississippi Department of Public Safety has ample time to review your request and make any necessary arrangements. If you have any questions or concerns about requesting accommodations for the Class B CDL written test due to a disability, you should contact the Mississippi Department of Public Safety for more information.
It's important to note that there is a fee for retaking the test. You will need to pay the fee each time you take the test. Additionally, it's a good idea to review the materials and study before retaking the test, as there is no guarantee that you will pass on subsequent attempts without proper preparation.
If you have any questions or concerns about retaking the Class B CDL written test in Mississippi, you should contact the Mississippi Department of Public Safety for more information. They can provide you with specific instructions and guidance on how to proceed.