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 possible answer choices. Test questions come from the Louisiana Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving 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
36. The only way to sober up after consuming alcohol is to:
Explanation
Most alcohol is removed from the body by the liver, which processes alcohol at a fixed rate. Despite popular belief, techniques like drinking black coffee or taking a cold shower will not accelerate this process. The only thing you can do to become sober after drinking is allow your body the time it needs to eliminate the alcohol from your system.
37. If a speed limit is posted, the posted speed:
Explanation
A maximum posted speed limit is the fastest a vehicle may travel under ideal circumstances. A driver should decrease their driving speed as conditions require. A driver should never exceed the legal speed limit.
38. Air tank drains should:
Explanation
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
39. Hydroplaning happens most often when:
Explanation
Hydroplaning is most likely to occur when driving on wet roads with tire pressure that is too low and tire tread that is too worn. If there is enough water on the road, hydroplaning can occur at speeds as low as 30 mph.
40. When starting a vehicle, warning lights and buzzers:
Explanation
After starting a vehicle's engine, the warning lights and buzzers should turn on, then quickly turn off.
41. If you’re unfamiliar with the area in which you must back up, you should:
Explanation
Before backing up, you should get out of your vehicle and look at your line of travel. Check your clearance to the sides and overhead.
42. A dual air brake system:
Explanation
A dual air brake system is made up of two separate air brake systems. The systems share a single set of brake controls, but each has its own air tanks, hoses, and lines. One system typically operates the regular brakes on the rear axle or axles while the other system operates the regular brakes on the front axle.
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Frequently Asked Questions
A Class B CDL (Commercial Driver's License) in Louisiana allows a driver to operate a single vehicle with a weight of 26,001 pounds or more, or a combination of vehicles with a total weight of 26,001 pounds or more. This license is required for driving many types of commercial vehicles, such as buses, box trucks, and tractor-trailers.
To obtain a Class B CDL in Louisiana, you must follow these steps:
1. Obtain a Louisiana driver's license.
2. Obtain a Commercial Learner's Permit (CLP) by passing the written test and obtaining a medical certification.
3. Practice driving with the CLP for at least 14 days.
4. Schedule and pass the skills test in the type of vehicle you will be driving.
5. Pay the required fees and obtain your Class B CDL from the Louisiana Office of Motor Vehicles.
It is important to note that there may be additional requirements depending on your specific situation or the type of vehicle you will be driving. It is recommended to consult the Louisiana Commercial Driver's License Manual for more information.
To obtain a Class B CDL in Louisiana, you must follow these steps:
1. Obtain a Louisiana driver's license.
2. Obtain a Commercial Learner's Permit (CLP) by passing the written test and obtaining a medical certification.
3. Practice driving with the CLP for at least 14 days.
4. Schedule and pass the skills test in the type of vehicle you will be driving.
5. Pay the required fees and obtain your Class B CDL from the Louisiana Office of Motor Vehicles.
It is important to note that there may be additional requirements depending on your specific situation or the type of vehicle you will be driving. It is recommended to consult the Louisiana Commercial Driver's License Manual for more information.
With a Class B CDL license in Louisiana, you are authorized to operate a single vehicle with a weight of 26,001 pounds or more, or a combination of vehicles with a total weight of 26,001 pounds or more.
Some examples of vehicles that you may be able to operate with a Class B CDL include:
- Straight trucks (such as delivery trucks and dump trucks) with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
- Buses designed to transport more than 15 passengers (including the driver), but not including school buses.
- Combination vehicles (such as tractor-trailers) where the towed unit has a GVWR of less than 10,000 pounds.
It is important to note that there may be additional endorsements or restrictions required for certain types of vehicles. For example, if you want to drive a bus with air brakes, you will need an air brake endorsement. It is recommended to consult the Louisiana Commercial Driver's License Manual for more information on specific requirements and endorsements.
Some examples of vehicles that you may be able to operate with a Class B CDL include:
- Straight trucks (such as delivery trucks and dump trucks) with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
- Buses designed to transport more than 15 passengers (including the driver), but not including school buses.
- Combination vehicles (such as tractor-trailers) where the towed unit has a GVWR of less than 10,000 pounds.
It is important to note that there may be additional endorsements or restrictions required for certain types of vehicles. For example, if you want to drive a bus with air brakes, you will need an air brake endorsement. It is recommended to consult the Louisiana Commercial Driver's License Manual for more information on specific requirements and endorsements.
To obtain a Class B CDL (Commercial Driver's License) license in Louisiana, you must meet the following requirements:
1. Age: You must be at least 18 years old to obtain a Class B CDL license. However, if you plan to operate a commercial vehicle across state lines or transport hazardous materials, you must be at least 21 years old.
2. Valid Driver's License: You must possess a valid Louisiana driver's license.
3. Medical Certification: You must pass a medical examination and obtain a medical certification from a certified medical examiner listed on the National Registry of Certified Medical Examiners.
4. Commercial Learner's Permit (CLP): You must obtain a Commercial Learner's Permit (CLP) by passing the written test and obtaining a medical certification.
5. Driving Experience: You must have at least one year of driving experience with a non-commercial driver's license.
6. Skills Test: You must pass the skills test in the type of vehicle you will be driving.
7. Fees: You must pay the required fees to obtain your Class B CDL from the Louisiana Office of Motor Vehicles.
It is important to note that there may be additional requirements depending on your specific situation or the type of vehicle you will be driving. It is recommended to consult the Louisiana Commercial Driver's License Manual for more information.
1. Age: You must be at least 18 years old to obtain a Class B CDL license. However, if you plan to operate a commercial vehicle across state lines or transport hazardous materials, you must be at least 21 years old.
2. Valid Driver's License: You must possess a valid Louisiana driver's license.
3. Medical Certification: You must pass a medical examination and obtain a medical certification from a certified medical examiner listed on the National Registry of Certified Medical Examiners.
4. Commercial Learner's Permit (CLP): You must obtain a Commercial Learner's Permit (CLP) by passing the written test and obtaining a medical certification.
5. Driving Experience: You must have at least one year of driving experience with a non-commercial driver's license.
6. Skills Test: You must pass the skills test in the type of vehicle you will be driving.
7. Fees: You must pay the required fees to obtain your Class B CDL from the Louisiana Office of Motor Vehicles.
It is important to note that there may be additional requirements depending on your specific situation or the type of vehicle you will be driving. It is recommended to consult the Louisiana Commercial Driver's License Manual for more information.
In Louisiana, the minimum age requirement for a Class B CDL (Commercial Driver's License) license is 18 years old. However, there are restrictions on the type of driving that a person under 21 years old can do with a CDL license.
If you are between 18 and 20 years old, you can only drive commercial vehicles within Louisiana. You cannot drive vehicles that transport hazardous materials or vehicles that are designed to carry more than 15 passengers, including the driver.
If you are 21 years old or older, you can drive commercial vehicles across state lines and transport hazardous materials.
It is important to note that some employers may have their own age requirements for hiring CDL drivers.
If you are between 18 and 20 years old, you can only drive commercial vehicles within Louisiana. You cannot drive vehicles that transport hazardous materials or vehicles that are designed to carry more than 15 passengers, including the driver.
If you are 21 years old or older, you can drive commercial vehicles across state lines and transport hazardous materials.
It is important to note that some employers may have their own age requirements for hiring CDL drivers.
Yes, you may need endorsements for a Class B CDL (Commercial Driver's License) license depending on the type of vehicle you plan to operate and the materials you plan to transport.
The following are the endorsements that may be required for a Class B CDL license in Louisiana:
1. Passenger Endorsement (P): If you plan to drive a vehicle designed to carry more than 15 passengers, including the driver, you will need to obtain a Passenger Endorsement (P).
2. School Bus Endorsement (S): If you plan to drive a school bus, you will need to obtain a School Bus Endorsement (S).
3. Hazardous Materials Endorsement (H): If you plan to transport hazardous materials, you will need to obtain a Hazardous Materials Endorsement (H). You will also need to pass a Transportation Security Administration background check and provide fingerprints.
4. Tank Vehicle Endorsement (N): If you plan to transport liquid or gaseous materials in tanks, you will need to obtain a Tank Vehicle Endorsement (N).
5. Double/Triple Trailer Endorsement (T): If you plan to tow two or three trailers at the same time, you will need to obtain a Double/Triple Trailer Endorsement (T).
It is important to note that endorsements require additional testing and fees. You must pass the appropriate knowledge and skills tests and pay any additional fees for each endorsement that you wish to obtain.
The following are the endorsements that may be required for a Class B CDL license in Louisiana:
1. Passenger Endorsement (P): If you plan to drive a vehicle designed to carry more than 15 passengers, including the driver, you will need to obtain a Passenger Endorsement (P).
2. School Bus Endorsement (S): If you plan to drive a school bus, you will need to obtain a School Bus Endorsement (S).
3. Hazardous Materials Endorsement (H): If you plan to transport hazardous materials, you will need to obtain a Hazardous Materials Endorsement (H). You will also need to pass a Transportation Security Administration background check and provide fingerprints.
4. Tank Vehicle Endorsement (N): If you plan to transport liquid or gaseous materials in tanks, you will need to obtain a Tank Vehicle Endorsement (N).
5. Double/Triple Trailer Endorsement (T): If you plan to tow two or three trailers at the same time, you will need to obtain a Double/Triple Trailer Endorsement (T).
It is important to note that endorsements require additional testing and fees. You must pass the appropriate knowledge and skills tests and pay any additional fees for each endorsement that you wish to obtain.
The Class B CDL (Commercial Driver's License) skills test consists of three parts: a pre-trip inspection test, a basic vehicle control test, and an on-road driving test.
1. Pre-trip inspection test: You will be asked to perform a pre-trip inspection of your vehicle to ensure that it is safe to operate. You will need to identify and explain any problems or safety hazards that you find.
2. Basic vehicle control test: You will need to demonstrate your ability to control your vehicle in different situations, such as backing up, turning, and parking. The examiner will give you specific instructions on what maneuvers to perform and you must complete them safely and effectively.
3. On-road driving test: You will need to demonstrate your ability to safely operate your vehicle in normal traffic situations on public roads. The examiner will give you directions on where to drive and you must follow them while obeying traffic laws and using safe driving practices.
During the skills test, the examiner will be evaluating your ability to control the vehicle, execute maneuvers safely and effectively, follow traffic laws and signals, check for hazards, and use good judgment.
It is important to note that the skills test is a comprehensive evaluation of your ability as a commercial driver. You must pass all three parts of the skills test in order to obtain your Class B CDL license.
1. Pre-trip inspection test: You will be asked to perform a pre-trip inspection of your vehicle to ensure that it is safe to operate. You will need to identify and explain any problems or safety hazards that you find.
2. Basic vehicle control test: You will need to demonstrate your ability to control your vehicle in different situations, such as backing up, turning, and parking. The examiner will give you specific instructions on what maneuvers to perform and you must complete them safely and effectively.
3. On-road driving test: You will need to demonstrate your ability to safely operate your vehicle in normal traffic situations on public roads. The examiner will give you directions on where to drive and you must follow them while obeying traffic laws and using safe driving practices.
During the skills test, the examiner will be evaluating your ability to control the vehicle, execute maneuvers safely and effectively, follow traffic laws and signals, check for hazards, and use good judgment.
It is important to note that the skills test is a comprehensive evaluation of your ability as a commercial driver. You must pass all three parts of the skills test in order to obtain your Class B CDL license.
Yes, there are some restrictions and limitations for drivers with a Class B CDL (Commercial Driver's License) license. Here are some of the common restrictions:
1. Endorsement restrictions: If you have a Class B CDL with certain endorsements, such as a passenger (P) or hazardous materials (H) endorsement, you may be restricted to certain types of vehicles or materials that you can transport.
2. Air brake restriction: If you take your skills test in a vehicle without air brakes, you will be restricted from operating vehicles with air brakes.
3. Automatic transmission restriction: If you take your skills test in a vehicle with an automatic transmission, you will be restricted from operating vehicles with a manual transmission.
4. CDL holder without proper medical certification: If you fail to maintain your medical certification requirements, your CDL may be downgraded to a non-commercial license.
5. Intrastate-only restriction: If you do not meet the federal medical requirements to operate in interstate commerce, your CDL may be restricted to intrastate-only operations.
It is important to note that restrictions and limitations can vary depending on the state and the type of vehicle or endorsement on your CDL. It is important to understand and comply with all restrictions and limitations to avoid potential violations or penalties.
1. Endorsement restrictions: If you have a Class B CDL with certain endorsements, such as a passenger (P) or hazardous materials (H) endorsement, you may be restricted to certain types of vehicles or materials that you can transport.
2. Air brake restriction: If you take your skills test in a vehicle without air brakes, you will be restricted from operating vehicles with air brakes.
3. Automatic transmission restriction: If you take your skills test in a vehicle with an automatic transmission, you will be restricted from operating vehicles with a manual transmission.
4. CDL holder without proper medical certification: If you fail to maintain your medical certification requirements, your CDL may be downgraded to a non-commercial license.
5. Intrastate-only restriction: If you do not meet the federal medical requirements to operate in interstate commerce, your CDL may be restricted to intrastate-only operations.
It is important to note that restrictions and limitations can vary depending on the state and the type of vehicle or endorsement on your CDL. It is important to understand and comply with all restrictions and limitations to avoid potential violations or penalties.
In Louisiana, the Class B CDL (Commercial Driver's License) written test is only available in English. The Louisiana Office of Motor Vehicles (OMV) requires all CDL applicants to take the written test in English, as it is the official language of the United States and is required for safe operation on public roads.
However, if you are not fluent in English, you can bring an interpreter with you to help you understand the test questions and instructions. The interpreter must be at least 18 years old and cannot be a CDL holder or have a vested interest in the outcome of your exam.
It is important to note that all CDL applicants, regardless of language proficiency, must demonstrate their ability to read and understand basic English phrases related to driving safety before taking the CDL skills test. Additionally, many CDL training schools offer courses in multiple languages to help non-English speakers prepare for the written test.
However, if you are not fluent in English, you can bring an interpreter with you to help you understand the test questions and instructions. The interpreter must be at least 18 years old and cannot be a CDL holder or have a vested interest in the outcome of your exam.
It is important to note that all CDL applicants, regardless of language proficiency, must demonstrate their ability to read and understand basic English phrases related to driving safety before taking the CDL skills test. Additionally, many CDL training schools offer courses in multiple languages to help non-English speakers prepare for the written test.
Yes, if you have a disability that may affect your ability to take the Class B CDL (Commercial Driver's License) written test, you may request accommodations from the Louisiana Office of Motor Vehicles (OMV).
To request accommodations, you will need to fill out a Request for Reasonable Accommodations form and submit it to the OMV along with documentation of your disability and a description of the specific accommodations you are requesting. Accommodations may include special equipment or materials, extra time to complete the test, or other modifications that will enable you to take the test successfully.
The OMV will review your request and documentation and determine if your request can be accommodated. If your request is approved, the OMV will work with you to schedule a testing appointment that meets your needs.
It is important to note that requests for accommodations must be made in advance of your testing appointment. Additionally, the OMV may require additional documentation or information before making a decision on your request.
To request accommodations, you will need to fill out a Request for Reasonable Accommodations form and submit it to the OMV along with documentation of your disability and a description of the specific accommodations you are requesting. Accommodations may include special equipment or materials, extra time to complete the test, or other modifications that will enable you to take the test successfully.
The OMV will review your request and documentation and determine if your request can be accommodated. If your request is approved, the OMV will work with you to schedule a testing appointment that meets your needs.
It is important to note that requests for accommodations must be made in advance of your testing appointment. Additionally, the OMV may require additional documentation or information before making a decision on your request.
If you fail the Class B CDL (Commercial Driver's License) written test in Louisiana, you will have the opportunity to retake the test. However, you will need to wait at least one day before you can retake the test.
If you fail the test a second time, you will need to wait at least seven days before you can retake it again. If you fail the test a third time, you will need to wait at least 30 days before you can retake it again.
It is important to note that there is a fee for each attempt at the CDL written test, so it is best to study and prepare thoroughly before taking the test. Additionally, if you fail the test three times, you may be required to complete additional training or education before you can retake the test.
Once you pass the CDL written test, you will be issued a Commercial Learner's Permit (CLP), which will allow you to practice driving a commercial vehicle with a licensed CDL holder in the passenger seat. After you have obtained sufficient practice and training, you can take the CDL skills test to obtain your full Class B CDL.
If you fail the test a second time, you will need to wait at least seven days before you can retake it again. If you fail the test a third time, you will need to wait at least 30 days before you can retake it again.
It is important to note that there is a fee for each attempt at the CDL written test, so it is best to study and prepare thoroughly before taking the test. Additionally, if you fail the test three times, you may be required to complete additional training or education before you can retake the test.
Once you pass the CDL written test, you will be issued a Commercial Learner's Permit (CLP), which will allow you to practice driving a commercial vehicle with a licensed CDL holder in the passenger seat. After you have obtained sufficient practice and training, you can take the CDL skills test to obtain your full Class B CDL.
