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.
Number of Question
Passing Score
43. Most heavy trucks with manual transmissions require ____ to change gears.
Explanation
Most heavy vehicles with manual transmissions require double clutching to shift gears. Learning to effectively change gears by double clutching takes practice.
44. The leakage rate for a triple combination vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
Explanation
When performing a static leakage test on a triple combination vehicle with air brakes, the leakage rate should be no more than 5 psi in one minute. If the air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.
45. Before starting down a hill, you should:
Explanation
Always downshift before beginning to drive downhill. Take the hill at a speed that does not require you to overuse your brakes.
46. Shortly after a tire has been changed, you should:
Explanation
After a tire has been changed, you should stop a short while later to recheck the tightness of the lug nuts.
47. When entering a curve, you should:
Explanation
Always reduce your speed and downshift before entering a curve.
48. A pre-trip inspection:
Explanation
A pre-trip inspection should be completed in the same way before every drive. Consistency will help you learn all of the proper steps and decrease the likelihood that you will forget to check something.
49. If braking at a speed of 55 mph while driving on dry pavement, the brake lag can add ____ to your vehicle's total stopping distance.
Explanation
The total stopping distance for vehicles equipped with air brakes is made up of four factors: perception distance, reaction distance, brake lag distance, and braking distance. When braking at a speed of 55 mph while driving on dry pavement, the brake lag can add around 32 feet to a vehicle's total stopping distance.
50. Which of the following is not a type of retarder?
Explanation
Retarders are mechanisms in some vehicles that help slow the vehicle and reduce the need for braking. The four basic types of retarders are exhaust, engine, hydraulic, and electric.
Frequently Asked Questions
A Class B CDL (Commercial Driver's License) in Mississippi allows the holder to operate a single vehicle with a weight of 26,001 pounds or more, or a combination of vehicles with a total weight of less than 26,001 pounds. This license is required for drivers who operate vehicles such as large buses, box trucks, and tow trucks with a trailer.
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).
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).
With a Class B CDL license in Mississippi, you can operate a single vehicle with a weight of 26,001 pounds or more, or a combination of vehicles with a total weight of less than 26,001 pounds.
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.
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.
To obtain a Class B Commercial Driver's License (CDL) license in Mississippi, you must meet the following requirements:
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.
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.
In Mississippi, the minimum age requirement for a Class B Commercial Driver's License (CDL) is 18 years old. However, if you plan to transport hazardous materials or operate across state lines, you must be at least 21 years old to obtain a CDL.
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.
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.
Yes, you may need to obtain certain endorsements in addition to a Class B Commercial Driver's License (CDL) depending on the type of vehicle you will be operating and the cargo you will be transporting.
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.
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.
The Class B Commercial Driver's License (CDL) skills test in Mississippi is designed to evaluate your ability to safely operate a Class B vehicle and includes three parts:
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. 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.
Yes, there are some restrictions and limitations for drivers with a Class B Commercial Driver's License (CDL) in Mississippi. Some of the common restrictions and limitations include:
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.
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.
In Mississippi, the Class B CDL written test is only available in English. However, if you are not proficient in English, you may be able to use an interpreter during the test. The interpreter must be able to translate accurately and impartially between English and your preferred language. It's important to note that the interpreter must be approved by the Mississippi Department of Public Safety and you will need to schedule an appointment with the department to ensure that an interpreter is available on the day of your test. Additionally, there may be an additional fee for using an interpreter. If you have any questions or concerns about taking the written test in a language other than English, you should contact the Mississippi Department of Public Safety for more information.
Yes, if you have a disability that may impact your ability to take the Class B CDL written test, you may request accommodations. The Mississippi Department of Public Safety is committed to providing reasonable accommodations to individuals with disabilities in compliance with the Americans with Disabilities Act (ADA). Examples of accommodations that may be available include extended testing time, a separate testing room or a sign language interpreter.
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.
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.
If you fail the Class B CDL written test in Mississippi, you are allowed to retake it. However, you will need to wait at least 24 hours before you can take the test again. If you fail the test three times, you will need to wait at least 30 days before you can take it again.
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.
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.
