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 North Carolina Commercial Driver License 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
8. Cargo with a high center of gravity:
Explanation
Cargo with a high center of gravity makes a vehicle more likely to tip over than cargo with a low center of gravity. For this reason, it is important that the weight of cargo be distributed as low as possible.
9. When traveling down a hill:
Explanation
When a vehicle is traveling on a downward slope, the force of gravity will cause its speed to increase.
10. When you leave your vehicle, you should:
Explanation
Always apply the parking brake when leaving your vehicle.
11. What kind of force must emergency brakes use?
Explanation
Because air pressure can eventually leak away, the emergency brakes in an air brake system must be held on by mechanical force.
12. Federal and state laws require:
Explanation
Commercial drivers are required by federal and state laws to inspect their vehicles before every trip. Regular inspections can help drivers identify issues before they become dangerous and costly.
13. A CMV should:
Explanation
All commercial motor vehicles are required to be equipped with the proper emergency equipment. This may include spare electrical fuses; three red reflective triangles, six fuses, or three liquid burning flares; and at least one properly charged and rated fire extinguisher.
14. If your wheels being to spin when accelerating on a poor traction surface, you should:
Explanation
If your drive wheels begin to spin while accelerating on a surface with poor traction, you should remove your foot from the accelerator.
See the exact questions that will be on the 2025 North Carolina DMV exam.
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Frequently Asked Questions
A Class B CDL (Commercial Driver's License) in North Carolina allows drivers to operate vehicles with a gross vehicle weight rating (GVWR) of 26,001 or more pounds, or any such vehicle towing a trailer weighing less than 10,000 pounds. Some examples of vehicles that require a Class B CDL in North Carolina include dump trucks, delivery trucks, and buses.
Here are the steps to obtain a Class B CDL license in North Carolina:
1. Obtain a North Carolina Commercial Driver's Manual from a DMV office or online.
2. Pass a DOT physical examination and obtain a Medical Examiner's Certificate.
3. Obtain a Commercial Learner's Permit (CLP) by passing the knowledge tests specific to the type of vehicle you intend to drive. You must hold the CLP for at least 14 days before taking the skills test.
4. Schedule and pass the skills test, which includes a pre-trip inspection, basic vehicle controls test, and road test. You will need to provide your own vehicle for the test.
5. If you pass the skills test, return to the DMV with your passing score sheet and pay the required fees to obtain your Class B CDL.
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transport.
Here are the steps to obtain a Class B CDL license in North Carolina:
1. Obtain a North Carolina Commercial Driver's Manual from a DMV office or online.
2. Pass a DOT physical examination and obtain a Medical Examiner's Certificate.
3. Obtain a Commercial Learner's Permit (CLP) by passing the knowledge tests specific to the type of vehicle you intend to drive. You must hold the CLP for at least 14 days before taking the skills test.
4. Schedule and pass the skills test, which includes a pre-trip inspection, basic vehicle controls test, and road test. You will need to provide your own vehicle for the test.
5. If you pass the skills test, return to the DMV with your passing score sheet and pay the required fees to obtain your Class B CDL.
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transport.
With a Class B CDL (Commercial Driver's License) in North Carolina, you can operate vehicles with a gross vehicle weight rating (GVWR) of 26,001 or more pounds, or any such vehicle towing a trailer weighing less than 10,000 pounds. Some examples of vehicles that you can operate with a Class B CDL in North Carolina include:
- Straight trucks (e.g. dump trucks, tow trucks, delivery trucks)
- Large buses (e.g. school buses, city buses)
- Box trucks
- Flatbeds
- Dump trucks with small trailers
- Cement mixers
- Refrigerated trucks
It is important to note that certain types of vehicles or cargo may require additional endorsements on your CDL, such as hazardous materials or passenger transport. It is also important to follow all state and federal regulations regarding the operation of commercial vehicles.
- Straight trucks (e.g. dump trucks, tow trucks, delivery trucks)
- Large buses (e.g. school buses, city buses)
- Box trucks
- Flatbeds
- Dump trucks with small trailers
- Cement mixers
- Refrigerated trucks
It is important to note that certain types of vehicles or cargo may require additional endorsements on your CDL, such as hazardous materials or passenger transport. It is also important to follow all state and federal regulations regarding the operation of commercial vehicles.
To obtain a Class B CDL (Commercial Driver's License) in North Carolina, you must meet the following requirements:
1. Be at least 18 years of age.
2. Hold a valid non-commercial North Carolina driver's license.
3. Obtain a North Carolina Commercial Driver's Manual from a DMV office or online.
4. Pass a DOT physical examination and obtain a Medical Examiner's Certificate.
5. Obtain a Commercial Learner's Permit (CLP) by passing the knowledge tests specific to the type of vehicle you intend to drive. You must hold the CLP for at least 14 days before taking the skills test.
6. Provide proof of identity and residency in North Carolina.
7. Pass the skills test, which includes a pre-trip inspection, basic vehicle controls test, and road test. You will need to provide your own vehicle for the test.
8. If you pass the skills test, return to the DMV with your passing score sheet and pay the required fees to obtain your Class B CDL.
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transport. You will also need to maintain your CDL with regular medical exams and renewals as required by state and federal regulations.
1. Be at least 18 years of age.
2. Hold a valid non-commercial North Carolina driver's license.
3. Obtain a North Carolina Commercial Driver's Manual from a DMV office or online.
4. Pass a DOT physical examination and obtain a Medical Examiner's Certificate.
5. Obtain a Commercial Learner's Permit (CLP) by passing the knowledge tests specific to the type of vehicle you intend to drive. You must hold the CLP for at least 14 days before taking the skills test.
6. Provide proof of identity and residency in North Carolina.
7. Pass the skills test, which includes a pre-trip inspection, basic vehicle controls test, and road test. You will need to provide your own vehicle for the test.
8. If you pass the skills test, return to the DMV with your passing score sheet and pay the required fees to obtain your Class B CDL.
It is important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or passenger transport. You will also need to maintain your CDL with regular medical exams and renewals as required by state and federal regulations.
In North Carolina, the minimum age requirement to obtain a Class B CDL (Commercial Driver's License) is 18 years old. However, there are some restrictions for drivers under the age of 21. Drivers between the ages of 18 and 21 are not allowed to transport hazardous materials or operate commercial vehicles across state lines. Additionally, drivers under the age of 21 must hold a commercial learner's permit for at least 30 days before they can take the skills test to obtain their Class B CDL. It is important to note that some employers may have their own age requirements for hiring commercial drivers, which may be higher than the state minimum.
The endorsements required for a Class B CDL (Commercial Driver's License) in North Carolina depend on the type of vehicle and cargo you plan to transport. Here are the common types of endorsements:
1. Passenger Endorsement (P): Required for drivers who will be transporting 16 or more passengers, including the driver.
2. School Bus Endorsement (S): Required for drivers who will be operating a school bus.
3. Tank Vehicle Endorsement (N): Required if you plan to transport liquids or gases in bulk containers with a capacity of 119 gallons or more.
4. Hazardous Materials Endorsement (H): Required if you plan to transport hazardous materials as defined by federal regulations.
5. Combination Tank and Hazardous Materials Endorsement (X): Required if you plan to transport both hazardous materials and liquids or gases in bulk containers with a capacity of 119 gallons or more.
To obtain any of these endorsements, you must pass additional knowledge and skills tests specific to the endorsement. You must also meet any additional requirements, such as a background check and fingerprinting, for certain endorsements like Hazardous Materials Endorsement (H).
1. Passenger Endorsement (P): Required for drivers who will be transporting 16 or more passengers, including the driver.
2. School Bus Endorsement (S): Required for drivers who will be operating a school bus.
3. Tank Vehicle Endorsement (N): Required if you plan to transport liquids or gases in bulk containers with a capacity of 119 gallons or more.
4. Hazardous Materials Endorsement (H): Required if you plan to transport hazardous materials as defined by federal regulations.
5. Combination Tank and Hazardous Materials Endorsement (X): Required if you plan to transport both hazardous materials and liquids or gases in bulk containers with a capacity of 119 gallons or more.
To obtain any of these endorsements, you must pass additional knowledge and skills tests specific to the endorsement. You must also meet any additional requirements, such as a background check and fingerprinting, for certain endorsements like Hazardous Materials Endorsement (H).
The Class B CDL (Commercial Driver's License) skills test in North Carolina is designed to evaluate your ability to safely operate a Class B commercial vehicle and includes three parts:
1. Pre-Trip Inspection: You will be asked to perform a thorough inspection of your vehicle, identifying any potential safety hazards or maintenance issues.
2. Basic Vehicle Control: You will be asked to demonstrate your ability to control the vehicle in various situations, including straight line backing, offset backing, and parallel parking.
3. On-Road Driving: You will be asked to drive on public roads, demonstrating your ability to safely operate the commercial vehicle in real-world conditions while following traffic laws and regulations.
The test may take several hours to complete and will be administered by a certified examiner. You must provide a vehicle that meets the requirements for the Class B CDL and bring all required documents, including your learner's permit, medical certificate, and proof of insurance. Be sure to practice and prepare for the test by reviewing the North Carolina Commercial Driver License Manual and taking any necessary training courses.
1. Pre-Trip Inspection: You will be asked to perform a thorough inspection of your vehicle, identifying any potential safety hazards or maintenance issues.
2. Basic Vehicle Control: You will be asked to demonstrate your ability to control the vehicle in various situations, including straight line backing, offset backing, and parallel parking.
3. On-Road Driving: You will be asked to drive on public roads, demonstrating your ability to safely operate the commercial vehicle in real-world conditions while following traffic laws and regulations.
The test may take several hours to complete and will be administered by a certified examiner. You must provide a vehicle that meets the requirements for the Class B CDL and bring all required documents, including your learner's permit, medical certificate, and proof of insurance. Be sure to practice and prepare for the test by reviewing the North Carolina Commercial Driver License Manual and taking any necessary training courses.
Yes, there are some restrictions and limitations for drivers with a Class B CDL (Commercial Driver's License) in North Carolina. Here are some of the common ones:
1. Vehicle Weight: You are only allowed to operate a single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
2. Towing: You are not allowed to tow a trailer with a GVWR of 10,000 pounds or more, except for a trailer with a GVWR of less than 10,000 pounds that is used for agricultural purposes.
3. Passenger Transport: You are only allowed to transport up to 15 passengers, including the driver.
4. Hazardous Materials: You may be required to obtain a Hazardous Materials Endorsement (H) to transport certain types of hazardous materials.
5. Time Restrictions: You may be subject to federal and state regulations regarding driving hours and rest breaks.
It is important to understand and follow these restrictions and limitations as violating them can result in fines, license suspension, or even disqualification from driving commercially. Additionally, some employers may have additional requirements or restrictions for their drivers beyond what is mandated by law.
1. Vehicle Weight: You are only allowed to operate a single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
2. Towing: You are not allowed to tow a trailer with a GVWR of 10,000 pounds or more, except for a trailer with a GVWR of less than 10,000 pounds that is used for agricultural purposes.
3. Passenger Transport: You are only allowed to transport up to 15 passengers, including the driver.
4. Hazardous Materials: You may be required to obtain a Hazardous Materials Endorsement (H) to transport certain types of hazardous materials.
5. Time Restrictions: You may be subject to federal and state regulations regarding driving hours and rest breaks.
It is important to understand and follow these restrictions and limitations as violating them can result in fines, license suspension, or even disqualification from driving commercially. Additionally, some employers may have additional requirements or restrictions for their drivers beyond what is mandated by law.
Yes, you may be able to take the Class B CDL (Commercial Driver's License) written test in a language other than English in North Carolina. The North Carolina Division of Motor Vehicles (DMV) provides the written test in several languages, including Spanish, Chinese, Russian, Korean, Japanese, Arabic, and French.
However, it's important to note that the skills test (pre-trip inspection, basic vehicle control, and on-road driving) will be conducted in English. Additionally, you will need to demonstrate that you can read and understand English by passing a written or oral English proficiency test.
If you need a language interpreter or translator for the skills test or for other DMV services, you may bring your own interpreter or use one of the DMV's approved language services providers. However, you will need to make arrangements for an interpreter or translator in advance and pay any associated fees.
It's important to check with your local DMV office for specific information on language options and requirements for obtaining a Class B CDL.
However, it's important to note that the skills test (pre-trip inspection, basic vehicle control, and on-road driving) will be conducted in English. Additionally, you will need to demonstrate that you can read and understand English by passing a written or oral English proficiency test.
If you need a language interpreter or translator for the skills test or for other DMV services, you may bring your own interpreter or use one of the DMV's approved language services providers. However, you will need to make arrangements for an interpreter or translator in advance and pay any associated fees.
It's important to check with your local DMV office for specific information on language options and requirements for obtaining a Class B CDL.
Yes, you can request accommodations for the Class B CDL (Commercial Driver's License) written test in North Carolina if you have a disability that may impact your ability to take the test. The North Carolina Division of Motor Vehicles (DMV) is committed to providing reasonable accommodations to individuals with disabilities to ensure that they have equal access to DMV services.
To request accommodations for the written test, you will need to complete and submit a Request for Accommodation form and provide documentation of your disability from a qualified healthcare professional. The form and documentation should be submitted to the DMV's Driver License Section at least 30 days before your scheduled appointment.
Examples of accommodations that may be provided include extended testing time, a separate testing area, a reader or scribe, or use of assistive technology. The DMV will work with you and your healthcare professional to determine appropriate accommodations based on your disability and individual needs.
It's important to note that the skills test (pre-trip inspection, basic vehicle control, and on-road driving) cannot be modified or waived due to a disability. However, you may still be able to obtain a Class B CDL with reasonable accommodations for the written test.
If you have any questions about requesting accommodations for the Class B CDL written test, you should contact your local DMV office for assistance.
To request accommodations for the written test, you will need to complete and submit a Request for Accommodation form and provide documentation of your disability from a qualified healthcare professional. The form and documentation should be submitted to the DMV's Driver License Section at least 30 days before your scheduled appointment.
Examples of accommodations that may be provided include extended testing time, a separate testing area, a reader or scribe, or use of assistive technology. The DMV will work with you and your healthcare professional to determine appropriate accommodations based on your disability and individual needs.
It's important to note that the skills test (pre-trip inspection, basic vehicle control, and on-road driving) cannot be modified or waived due to a disability. However, you may still be able to obtain a Class B CDL with reasonable accommodations for the written test.
If you have any questions about requesting accommodations for the Class B CDL written test, you should contact your local DMV office for assistance.
If you fail the Class B CDL (Commercial Driver's License) written test in North Carolina, you may retake it. However, there are certain restrictions on how soon you can retake the test and how many times you can retake it.
In North Carolina, you must wait at least one business day before you can retake the written test. You may take the test up to three times in a row during a single office visit. 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 each attempt at the written test, so failing multiple times can be costly. Therefore, it's important to prepare adequately for the test by studying the North Carolina Commercial Driver's License Manual and taking practice tests.
If you have any questions about retaking the Class B CDL written test or need additional study resources, you should contact your local DMV office for assistance.
In North Carolina, you must wait at least one business day before you can retake the written test. You may take the test up to three times in a row during a single office visit. 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 each attempt at the written test, so failing multiple times can be costly. Therefore, it's important to prepare adequately for the test by studying the North Carolina Commercial Driver's License Manual and taking practice tests.
If you have any questions about retaking the Class B CDL written test or need additional study resources, you should contact your local DMV office for assistance.
