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 Missouri Commercial 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
1. The tire load:
Explanation
Tire load is the maximum weight a tire can safely carry at a given pressure. This rating is stated on the side of each tire.
2. When slowing down, you should ____ to warn other drivers
Explanation
Before slowing down, it can be a good idea to lightly tap your brakes. This will cause your brake lights to flash, providing a warning to motorists behind you.
3. Which gas would cause concern due to a faulty exhaust system?
Explanation
A leaking exhaust system can introduce carbon monoxide, which is poisonous, into the cab or sleeper berth.
4. When passing another vehicle, you should:
Explanation
Whenever you pass another driver, bicyclist, or pedestrian, you should assume as a precaution that they do not see you.
5. What is road rage?
Explanation
Aggressive driving is defined as operating a motor vehicle in a selfish, bold, or pushy manner. Road rage is defined as operating a motor vehicle with the intent of doing harm to others, or the intent of physically assaulting another driver or their vehicle.
6. How does doubling your speed from 20 mph to 40 mph affect your vehicle's braking distance?
Explanation
Increasing your vehicle's speed will increase your vehicle's striking power and braking distance. Doubling your vehicle's speed from 20 to 40 mph will quadruple its braking distance.
7. Your CDL will be revoked if:
Explanation
If your privilege to operate your personal vehicle is revoked, canceled, or suspended due to moving traffic violations, you will also lose your CDL. This does not apply if your license is revoked due to parking violations.
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Frequently Asked Questions
A Class B CDL (Commercial Driver's License) is a type of license that 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 where the towed vehicle weighs less than 10,000 pounds. This license is required for drivers who operate buses, delivery trucks, and other large commercial vehicles.
To obtain a Class B CDL in Missouri, you must meet certain requirements and follow these steps:
1. Obtain a Missouri commercial driver's license manual from your local driver licensing office or download it from the Missouri Department of Revenue website.
2. Complete a medical examination and obtain a medical examiner's certificate. You can find a list of certified medical examiners on the Federal Motor Carrier Safety Administration website.
3. Obtain a Missouri commercial driver's license instruction permit by passing the written tests for general knowledge and air brakes if applicable. You must also pass any additional written tests required for the specific type of vehicle you plan to operate.
4. Practice driving with your instruction permit while accompanied by a licensed commercial driver.
5. Schedule and pass the skills test at a Missouri State Highway Patrol testing location. The skills test consists of three parts: pre-trip inspection, basic vehicle control, and on-road driving.
6. Pay the required fee and receive your Class B CDL from the Missouri Department of Revenue.
It's important to note that additional endorsements may be required depending on the type of vehicle you plan to operate, such as a passenger or hazardous materials endorsement.
To obtain a Class B CDL in Missouri, you must meet certain requirements and follow these steps:
1. Obtain a Missouri commercial driver's license manual from your local driver licensing office or download it from the Missouri Department of Revenue website.
2. Complete a medical examination and obtain a medical examiner's certificate. You can find a list of certified medical examiners on the Federal Motor Carrier Safety Administration website.
3. Obtain a Missouri commercial driver's license instruction permit by passing the written tests for general knowledge and air brakes if applicable. You must also pass any additional written tests required for the specific type of vehicle you plan to operate.
4. Practice driving with your instruction permit while accompanied by a licensed commercial driver.
5. Schedule and pass the skills test at a Missouri State Highway Patrol testing location. The skills test consists of three parts: pre-trip inspection, basic vehicle control, and on-road driving.
6. Pay the required fee and receive your Class B CDL from the Missouri Department of Revenue.
It's important to note that additional endorsements may be required depending on the type of vehicle you plan to operate, such as a passenger or hazardous materials endorsement.
With a Class B CDL (Commercial Driver's License) in Missouri, 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 26,001 pounds or more where the towed vehicle weighs less than 10,000 pounds.
Some examples of vehicles you can operate with a Class B CDL include:
- Straight trucks (delivery trucks, dump trucks, garbage trucks)
- Large buses (city buses, school buses)
- Box trucks with attached trailers
- Tow trucks with a heavy load
It's important to note that additional endorsements may be required depending on the type of vehicle you plan to operate. For example, a passenger endorsement is required to operate a bus carrying passengers, and a hazardous materials endorsement is required to transport hazardous materials.
Some examples of vehicles you can operate with a Class B CDL include:
- Straight trucks (delivery trucks, dump trucks, garbage trucks)
- Large buses (city buses, school buses)
- Box trucks with attached trailers
- Tow trucks with a heavy load
It's important to note that additional endorsements may be required depending on the type of vehicle you plan to operate. For example, a passenger endorsement is required to operate a bus carrying passengers, and a hazardous materials endorsement is required to transport hazardous materials.
To obtain a Class B CDL (Commercial Driver's License) in Missouri, you must meet certain requirements. Here are the steps you need to follow:
1. Be at least 18 years old to operate within Missouri, or 21 years old to operate across state lines or transport hazardous materials.
2. Have a valid Missouri driver's license.
3. Pass a general knowledge written test and an air brakes written test, if applicable, to obtain a commercial driver's license instruction permit.
4. Pass additional written tests for any endorsements you may need, such as passenger or hazardous materials.
5. Obtain a medical examiner's certificate certifying that you are physically fit to operate a commercial vehicle.
6. Complete behind-the-wheel training and pass the skills test, which includes three parts: pre-trip inspection, basic vehicle control, and on-road driving.
7. Provide proof of citizenship or legal presence in the United States.
8. Pay the required fee to obtain your Class B CDL from the Missouri Department of Revenue.
It's important to note that additional requirements may apply depending on your specific situation and the type of vehicle you plan to operate. Make sure to review the Missouri Commercial Driver License Manual for more information on requirements and procedures for obtaining a Class B CDL.
1. Be at least 18 years old to operate within Missouri, or 21 years old to operate across state lines or transport hazardous materials.
2. Have a valid Missouri driver's license.
3. Pass a general knowledge written test and an air brakes written test, if applicable, to obtain a commercial driver's license instruction permit.
4. Pass additional written tests for any endorsements you may need, such as passenger or hazardous materials.
5. Obtain a medical examiner's certificate certifying that you are physically fit to operate a commercial vehicle.
6. Complete behind-the-wheel training and pass the skills test, which includes three parts: pre-trip inspection, basic vehicle control, and on-road driving.
7. Provide proof of citizenship or legal presence in the United States.
8. Pay the required fee to obtain your Class B CDL from the Missouri Department of Revenue.
It's important to note that additional requirements may apply depending on your specific situation and the type of vehicle you plan to operate. Make sure to review the Missouri Commercial Driver License Manual for more information on requirements and procedures for obtaining a Class B CDL.
In Missouri, the minimum age requirement for a Class B CDL (Commercial Driver's License) is 18 years old. However, if you plan to operate a commercial vehicle across state lines or transport hazardous materials, you must be at least 21 years old. It's important to note that some employers may have their own age requirements for certain positions or types of vehicles, so you should check with your employer or prospective employer to determine their specific age requirements.
Whether or not you need endorsements for your Class B CDL (Commercial Driver's License) depends on the type of vehicle you plan to operate and the cargo you will be transporting. Here are the types of endorsements that may be required or optional for a Class B CDL:
1. Passenger Endorsement - If you plan to drive a vehicle designed to transport 16 or more passengers, including the driver, you will need a passenger endorsement.
2. School Bus Endorsement - If you plan to drive a school bus, you will need a school bus endorsement, in addition to the passenger endorsement.
3. Air Brakes Endorsement - If the vehicle you plan to operate has air brakes, you will need an air brakes endorsement, which requires passing an additional written test.
4. Hazardous Materials Endorsement - If you plan to transport hazardous materials, you will need a hazardous materials endorsement, which requires passing an additional written test and undergoing a security threat assessment.
5. Tanker Endorsement - If the vehicle you plan to operate carries liquid or gaseous materials in bulk containers with a capacity of 1,000 gallons or more and is not used for personal use, you may need a tanker endorsement.
It's important to note that each endorsement requires passing an additional written test and may have specific requirements beyond passing the test. Make sure to review the Missouri Commercial Driver License Manual for more information on endorsements and their requirements.
1. Passenger Endorsement - If you plan to drive a vehicle designed to transport 16 or more passengers, including the driver, you will need a passenger endorsement.
2. School Bus Endorsement - If you plan to drive a school bus, you will need a school bus endorsement, in addition to the passenger endorsement.
3. Air Brakes Endorsement - If the vehicle you plan to operate has air brakes, you will need an air brakes endorsement, which requires passing an additional written test.
4. Hazardous Materials Endorsement - If you plan to transport hazardous materials, you will need a hazardous materials endorsement, which requires passing an additional written test and undergoing a security threat assessment.
5. Tanker Endorsement - If the vehicle you plan to operate carries liquid or gaseous materials in bulk containers with a capacity of 1,000 gallons or more and is not used for personal use, you may need a tanker endorsement.
It's important to note that each endorsement requires passing an additional written test and may have specific requirements beyond passing the test. Make sure to review the Missouri Commercial Driver License Manual for more information on endorsements and their requirements.
The Class B CDL (Commercial Driver's License) skills test is designed to evaluate your ability to operate a Class B vehicle safely and efficiently. Here are the three parts of the Class B skills test:
1. Pre-trip Inspection: In this part of the test, you will be asked to perform a thorough inspection of your vehicle to ensure it is safe to operate. You will need to identify and explain any safety hazards or defects you find.
2. Basic Vehicle Control: In this part of the test, you will be asked to demonstrate your ability to control the vehicle in a variety of situations, such as backing up, turning, and parking.
3. On-Road Driving: In this part of the test, you will be evaluated on your ability to safely drive the vehicle on public roads and highways. You will need to follow all traffic laws and signal properly when turning or changing lanes.
It's important to note that the specific requirements for the Class B CDL skills test may vary depending on the state in which you are testing. Make sure to review the Missouri Commercial Driver License Manual for more information on the Class B CDL skills test requirements in Missouri.
1. Pre-trip Inspection: In this part of the test, you will be asked to perform a thorough inspection of your vehicle to ensure it is safe to operate. You will need to identify and explain any safety hazards or defects you find.
2. Basic Vehicle Control: In this part of the test, you will be asked to demonstrate your ability to control the vehicle in a variety of situations, such as backing up, turning, and parking.
3. On-Road Driving: In this part of the test, you will be evaluated on your ability to safely drive the vehicle on public roads and highways. You will need to follow all traffic laws and signal properly when turning or changing lanes.
It's important to note that the specific requirements for the Class B CDL skills test may vary depending on the state in which you are testing. Make sure to review the Missouri Commercial Driver License Manual for more information on the Class B CDL skills test requirements in Missouri.
Yes, there are certain restrictions and limitations for drivers with a Class B CDL (Commercial Driver's License) license. Here are some of the restrictions and limitations that apply:
1. Vehicle Weight: A Class B CDL only allows you to operate a vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more. If you want to operate a vehicle with a GVWR of more than 26,001 pounds with a trailer weighing less than 10,000 pounds, you will need a Class A CDL.
2. Passenger Restrictions: If you have a Class B CDL with a passenger endorsement, you are allowed to carry up to 16 passengers (including the driver). However, if the vehicle you are driving is designed to carry more than 16 passengers, you will need a Class A CDL.
3. Hazardous Materials: If you have a Class B CDL and want to transport hazardous materials, you will need to obtain a hazardous materials endorsement.
4. Air Brakes: If the vehicle you plan to operate has air brakes, you will need an air brakes endorsement.
5. Time Restrictions: If you are under the age of 21, your Class B CDL may be restricted to intrastate driving only.
It's important to note that these restrictions and limitations may vary depending on the state in which you obtained your CDL. Make sure to review the Missouri Commercial Driver License Manual for more information on Class B CDL restrictions and limitations in Missouri.
1. Vehicle Weight: A Class B CDL only allows you to operate a vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more. If you want to operate a vehicle with a GVWR of more than 26,001 pounds with a trailer weighing less than 10,000 pounds, you will need a Class A CDL.
2. Passenger Restrictions: If you have a Class B CDL with a passenger endorsement, you are allowed to carry up to 16 passengers (including the driver). However, if the vehicle you are driving is designed to carry more than 16 passengers, you will need a Class A CDL.
3. Hazardous Materials: If you have a Class B CDL and want to transport hazardous materials, you will need to obtain a hazardous materials endorsement.
4. Air Brakes: If the vehicle you plan to operate has air brakes, you will need an air brakes endorsement.
5. Time Restrictions: If you are under the age of 21, your Class B CDL may be restricted to intrastate driving only.
It's important to note that these restrictions and limitations may vary depending on the state in which you obtained your CDL. Make sure to review the Missouri Commercial Driver License Manual for more information on Class B CDL restrictions and limitations in Missouri.
In Missouri, the Class B CDL written test is offered in English, Spanish, and other languages. However, it's important to note that not all languages are available at all testing locations. It's recommended that you contact your local Missouri State Highway Patrol testing location to inquire about language availability and to schedule an appointment.
If you choose to take the written test in a language other than English, you will need to bring an interpreter with you to the testing location. The interpreter must be fluent in both English and the language in which you are taking the test, and they must be 18 years of age or older. The interpreter cannot be a family member or a person with a vested interest in the outcome of the test.
It's important to note that while you may take the written test in a language other than English, you will still need to be able to read and understand English for the road test portion of the CDL exam.
If you choose to take the written test in a language other than English, you will need to bring an interpreter with you to the testing location. The interpreter must be fluent in both English and the language in which you are taking the test, and they must be 18 years of age or older. The interpreter cannot be a family member or a person with a vested interest in the outcome of the test.
It's important to note that while you may take the written test in a language other than English, you will still need to be able to read and understand English for the road test portion of the CDL exam.
Yes, if you have a disability that requires accommodations for the Class B CDL written test in Missouri, you can request accommodations. The Missouri State Highway Patrol (MSHP) provides reasonable accommodations to individuals with disabilities in accordance with the Americans with Disabilities Act (ADA).
To request accommodations, you must complete and submit a Request for Accommodations form to the MSHP at least 10 business days prior to your scheduled test date. The form requests information about your disability and the specific accommodations you are requesting. You must also provide documentation of your disability from a qualified healthcare professional.
Examples of accommodations that may be provided include extended testing time, a separate testing room, a reader or scribe, or a sign language interpreter.
Once your request is received, the MSHP will review it and determine whether the requested accommodations are reasonable and appropriate based on your specific disability and needs. If your request is approved, the MSHP will work with you to schedule your test with the necessary accommodations.
It's important to note that failure to provide proper documentation or submit the request form within the required timeframe may delay or prevent the provision of requested accommodations.
To request accommodations, you must complete and submit a Request for Accommodations form to the MSHP at least 10 business days prior to your scheduled test date. The form requests information about your disability and the specific accommodations you are requesting. You must also provide documentation of your disability from a qualified healthcare professional.
Examples of accommodations that may be provided include extended testing time, a separate testing room, a reader or scribe, or a sign language interpreter.
Once your request is received, the MSHP will review it and determine whether the requested accommodations are reasonable and appropriate based on your specific disability and needs. If your request is approved, the MSHP will work with you to schedule your test with the necessary accommodations.
It's important to note that failure to provide proper documentation or submit the request form within the required timeframe may delay or prevent the provision of requested accommodations.
Yes, if you fail the Class B CDL written test in Missouri, you can retake it. However, you must wait at least one business day before retaking the test. There is a fee for each attempt at the written test, so be sure to study and prepare adequately before taking the test.
If you fail the written test three times, you will need to wait at least 30 days from your last attempt before you can retake it again. Additionally, if you fail any portion of the CDL exam three times (written or skills), you will need to complete additional training before being allowed to take that portion of the exam again.
It's important to note that passing the written test is just one part of obtaining a Class B CDL. You will also need to pass a road skills test and meet other requirements, such as age and medical requirements, before being issued a CDL.
If you fail the written test three times, you will need to wait at least 30 days from your last attempt before you can retake it again. Additionally, if you fail any portion of the CDL exam three times (written or skills), you will need to complete additional training before being allowed to take that portion of the exam again.
It's important to note that passing the written test is just one part of obtaining a Class B CDL. You will also need to pass a road skills test and meet other requirements, such as age and medical requirements, before being issued a CDL.
