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.
1. The tire load:
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
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?
A leaking exhaust system can introduce carbon monoxide, which is poisonous, into the cab or sleeper berth.
4. When passing another vehicle, you should:
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?
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?
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:
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.
Frequently Asked Questions
Here are the steps to obtain a Class B CDL license in Missouri:
1. Meet the eligibility criteria: You must be at least 18 years old, possess a valid Missouri driver’s license, and have no serious traffic violations or convictions.
2. Obtain and study the Missouri CDL manual: The manual contains all the information you need to pass the knowledge exam.
3. Schedule and pass the written knowledge exam: You must pass this exam before you can move on to the skills test.
4. Obtain a commercial learner’s permit (CLP): This permit allows you to practice driving a commercial motor vehicle (CMV) with a licensed CDL holder in the front seat.
5. Practice driving and prepare for the skills test: You should practice driving with a licensed CDL holder to gain experience and prepare for the skills test.
6. Schedule and pass the skills test: The skills test consists of three parts- vehicle inspection, basic control skills, and road test.
7. Pay the required fees and obtain your Class B CDL: Once you have passed all required tests and paid all necessary fees, you will receive your Class B CDL license.
Examples of vehicles you can operate with a Class B CDL include:
- Straight trucks such as dump trucks, box trucks, and delivery trucks
- Large buses such as school buses and city buses
- Segmented buses such as articulated buses
- Tow trucks such as wreckers and rollbacks
- Large passenger vans such as airport shuttles and church buses
However, it is important to note that you may need additional endorsements to operate certain types of vehicles, such as passenger or hazardous materials transport.
1. Age: You must be at least 18 years old to drive within the state of Missouri and at least 21 years old to drive across state lines.
2. Valid Missouri driver’s license: You must possess a valid Missouri driver’s license.
3. Medical certification: You must pass a medical examination and obtain a medical certificate from a certified medical examiner.
4. Knowledge test: You must pass a written knowledge test that covers general knowledge of driving a commercial vehicle, air brakes (if applicable), and any endorsements you plan to obtain.
5. Commercial learner's permit (CLP): You must obtain a commercial learner's permit (CLP), which requires passing a knowledge test specific to the type of commercial vehicle you plan to operate.
6. Skills test: You must pass a skills test that includes a pre-trip inspection, basic vehicle control, and on-road driving.
7. Background check: You must provide proof of citizenship or lawful permanent residency in the United States and pass a background check.
8. Fees: You must pay all necessary fees for obtaining your CDL license.
It is also important to note that certain endorsements may require additional testing, such as passenger or hazardous materials endorsements.
However, if you plan to drive across state lines or transport hazardous materials, you must be at least 21 years old to obtain the necessary endorsements for these activities.
1. Passenger endorsement (P): Required for drivers who intend to transport 16 or more passengers, including the driver.
2. School bus endorsement (S): Required for drivers who intend to operate a school bus.
3. Tank vehicle endorsement (N): Required for drivers who intend to transport liquids or gases in tanks.
4. Hazardous materials endorsement (H): Required for drivers who intend to transport hazardous materials.
5. Combination of tank vehicle and hazardous materials endorsement (X): Required for drivers who intend to transport both hazardous materials and liquids or gases in tanks.
Note that each endorsement has its own set of requirements, including additional knowledge and skills tests, background checks, and fees. It's important to research the specific requirements for any endorsements you may need as part of your Class B CDL license.
1. Pre-trip inspection: You will be asked to do a pre-trip inspection of your vehicle to ensure that it is safe to operate. This includes checking the brakes, steering, suspension, tires, lights, and other systems.
2. Basic vehicle control: You will demonstrate your ability to control the vehicle in various situations, such as backing up, turning, stopping, and starting on a grade.
3. On-road driving: You will drive the vehicle on public roads while being evaluated on your ability to safely operate the vehicle in traffic. You will be asked to perform various maneuvers such as turning left and right, changing lanes, and merging onto highways.
During the skills test, you will be evaluated on your ability to operate the vehicle safely and effectively. You must pass all three parts of the test in order to obtain your Class B CDL.
It's important to note that you must have a valid Missouri driver's license and a valid medical certificate before you can take the Class B CDL skills test. Additionally, you must have passed the required knowledge tests for the Class B CDL before taking the skills test.
1. Passenger carrying vehicles: If you have a Class B CDL with a passenger endorsement (P), you are limited to operating vehicles that carry 16 or more passengers, including the driver.
2. School buses: If you have a Class B CDL with a school bus endorsement (S), you are limited to operating school buses.
3. Tank vehicles: If you have a Class B CDL with a tank vehicle endorsement (N), you are limited to operating vehicles that transport liquids or gases in tanks.
4. Hazardous materials: If you have a Class B CDL with a hazardous materials endorsement (H), you are limited to transporting hazardous materials.
5. Combination of tank vehicle and hazardous materials: If you have a Class B CDL with a combination of tank vehicle and hazardous materials endorsement (X), you are limited to operating vehicles that transport both hazardous materials and liquids or gases in tanks.
It's important to note that these restrictions only apply if you have the specific endorsements for these types of vehicles or materials. Additionally, there may be other restrictions based on your driving record, medical history, or other factors. It's important to always follow the rules and regulations related to your Class B CDL license to ensure safety on the roads.
However, it's important to note that the skills test for the Class B CDL must be taken in English. Additionally, if you plan on transporting hazardous materials or passengers across state lines, you must be able to read and speak English well enough to communicate with officials and understand highway traffic signs and signals.
If you need to take the written test in a language other than English, you should contact your local Missouri DOR office to confirm availability and schedule an appointment. You may also need to provide additional documentation or pay additional fees for this service.
To request accommodations, you will need to fill out a Request for Testing Accommodations form and submit it to the DOR. The form requires documentation of your disability and a description of the specific accommodations you are requesting.
Examples of accommodations that may be provided include extended testing time, a separate testing room, a reader, a scribe, or a sign language interpreter. The DOR will review your request and determine if they can provide the requested accommodations.
It's important to note that you need to request accommodations well in advance of your scheduled test date. The DOR may take several weeks to process your request and make arrangements for the accommodations. Additionally, you may need to provide additional documentation or information to support your request.
If you fail the test, you will be given a report that shows your score and the areas in which you need improvement. You can use this report to study and prepare for your next attempt.
It's important to note that there is a limit to the number of times you can retake the test. In Missouri, you are allowed to take the Class B CDL written test up to three times within a 30-day period. After three attempts, you must wait at least 30 days before attempting the test again.
Each time you take the test, there is a fee that must be paid. If you pass the test on your second or third attempt, you will only need to pay for those attempts. If you fail all three attempts, you will need to pay for the test again when you retake it after the 30-day waiting period.