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
43. You are especially likely to encounter strong winds when:
Explanation
Strong winds can make it difficult to keep a vehicle in its proper lane. Strong wind can be a particular problem when a vehicle is being driven out of a tunnel.
44. When leaving your vehicle:
Explanation
Parking brakes should be used whenever you park. If necessary, chock your wheels.
45. When using a fire extinguisher on a fire, you should:
Explanation
When using a fire extinguisher, you should stand as far away from the fire as possible. Aim the extinguisher at the base of the fire, not at the flames. If you are not sure which kind of extinguisher should be used on a fire, particularly a hazardous materials fire, you should wait for the firefighters to arrive and allow them to extinguish it.
46. Compared to talking on a cell phone while driving, texting while driving is:
Explanation
Texting while driving is even more dangerous than speaking on a phone while driving. In addition to being mentally distracting, texting is also physically distracting.
47. To avoid a collision with a hazard on the roadway:
Explanation
Swerving out of the way of a hazard is sometimes safer than trying to stop before reaching the hazard. You can usually turn away from something more quickly than you can come to a complete stop.
48. When driving, being aware of what is happening behind you is:
Explanation
When driving, it is important to be aware of what is happening behind and to the sides of your vehicle. Mirror checks and head checks should be a normal part of your scanning routine.
49. Headache racks:
Explanation
Front-end header boards, also known as "headache racks," protect the driver from cargo moving in the event of a crash or emergency stop.
50. When applying for a hazardous materials endorsement, being found guilty of which of the following is a disqualifying offense?
Explanation
Amongst other crimes, a felony conviction for arson will disqualify a person from obtaining, renewing, or transferring a hazardous materials endorsement.
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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.
