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.. Read More

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 Oklahoma 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. When should mirrors be adjusted?

Explanation
Mirror adjustment should be checked prior to the start of any trip. If your vehicle has a trailer, the trailer must be straight in order for the mirrors to be checked accurately.

9. To obtain a hazardous materials endorsement, a person must be:

Explanation
To obtain a hazardous materials endorsement, you must be a U.S. citizen or lawful permanent resident. You will lose your hazardous materials endorsement if you renounce your U.S. citizenship.

10. If you are disqualified from driving:

Explanation
You must notify your employer within two business days if your license is suspended, revoked, or canceled, or if you are otherwise disqualified from driving.

11. Why should the steps of a pre-trip inspection be done in the same order each time?

Explanation
Pre-trip inspections should be conducted in the same way every time. This will reinforce the steps, making it less likely that you will forget to inspect something important.

12. The weight of a truck:

Explanation
A vehicle's weight is an important factor affecting its stopping distance. The heavier a vehicle is, the more work the brakes will need to do to bring it to a complete stop.

13. If other vehicles are having a difficult time getting around your truck on a road with two or more lanes, you should:

Explanation
You should stay in the right lane of a multilane road if your vehicle is being slowed down by a heavy load. Allow other vehicles to pass your truck using the left lane.

14. A driver who stops at a green light could be:

Explanation
It is important to observe other drivers' actions and identify clues that a person could be driving impaired. Drivers who have had too much to drink, are sleepy, are on drugs, or are ill can present hazards to other drivers. One sign that a driver may be impaired is that they stop in inappropriate places, such as at green traffic lights.

Frequently Asked Questions

A Class B CDL (Commercial Driver's License) is a type of license that allows you 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 but with the towed vehicle weighing less than 10,000 pounds.

In Oklahoma, obtaining a Class B CDL license requires several steps:

1. You must have a valid Oklahoma driver's license and be at least 18 years old.

2. You must pass a physical examination to ensure that you are physically capable of driving a commercial vehicle.

3. You must obtain a Commercial Learner's Permit (CLP) by passing the appropriate knowledge tests for the Class B license and any endorsements you may need (such as hazardous materials or passenger transport).

4. Practice driving with your CLP for at least 14 days before taking the skills test.

5. Schedule and pass the skills test, which consists of three parts: pre-trip inspection, basic vehicle control, and on-road driving.

6. Once you pass the skills test, you can obtain your Class B CDL license by paying the appropriate fees and providing proof of insurance.

It is important to note that additional endorsements may be required for specific types of commercial vehicles or cargo, such as school buses or hazardous materials.

With a Class B CDL license in Oklahoma, 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 can operate with a Class B CDL license include:

- Large buses, such as school buses, city buses, and tour buses
- Straight trucks, such as delivery trucks and dump trucks
- Box trucks and other large delivery vehicles
- Tow trucks and other commercial vehicles used for hauling equipment

It is important to note that certain endorsements may be required to operate certain types of vehicles or cargo, such as hazardous materials or passenger transport.

To obtain a Class B CDL (Commercial Driver's License) license in Oklahoma, you must meet the following requirements:

1. Age: You must be at least 18 years old to obtain a Class B CDL, or 21 years old if you plan to drive across state lines or transport hazardous materials.

2. Valid driver's license: You must have a valid Oklahoma driver's license.

3. Physical examination: You must pass a physical examination to ensure that you are physically capable of driving a commercial vehicle.

4. Knowledge tests: You must pass the appropriate knowledge tests for the Class B license and any endorsements you may need (such as hazardous materials or passenger transport).

5. Commercial Learner's Permit (CLP): You must obtain a Commercial Learner's Permit by passing the knowledge tests for the Class B CDL and any required endorsements.

6. Skills test: You must pass a skills test that includes three parts: pre-trip inspection, basic vehicle control, and on-road driving.

7. Proof of insurance: You must provide proof of insurance for the vehicle you plan to operate.

It is important to note that additional endorsements may be required for specific types of commercial vehicles or cargo, such as school buses or hazardous materials.

The minimum age requirement for a Class B CDL (Commercial Driver's License) license in Oklahoma 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 drivers, and they may also require additional training or experience beyond what is required by state law.

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 cargo you plan to transport.

Some common endorsements for Class B CDL drivers include:

1. Passenger endorsement (P): Required for drivers who will operate vehicles designed to transport 16 or more passengers, including the driver.

2. School bus endorsement (S): Required for drivers who will operate a school bus.

3. Tanker endorsement (N): Required for drivers who will transport liquid or gaseous materials in bulk containers with a capacity of 1,000 gallons or more.

4. Hazardous materials endorsement (H): Required for drivers who will transport hazardous materials, as defined by the Department of Transportation.

5. Doubles/triples endorsement (T): Required for drivers who will operate vehicles with two or three trailers attached.

You must pass the appropriate knowledge tests for each endorsement you need in addition to the Class B CDL knowledge tests. You may also need to pass additional skills tests if the endorsement requires it.

The Class B CDL (Commercial Driver's License) skills test 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 pre-trip inspection of your vehicle and point out any potential safety hazards or mechanical issues.

2. Basic vehicle control: You will be asked to demonstrate your ability to control the vehicle in various situations, such as backing up, turning, and parking.

3. On-road driving: You will be asked to demonstrate your ability to safely operate the commercial vehicle on public roads while following traffic laws and regulations.

During the skills test, you will be evaluated on various criteria, including your ability to control the vehicle, your knowledge of safety regulations, and your overall driving skills. It's important to practice and prepare for the skills test by reviewing the Oklahoma CDL manual, obtaining any necessary endorsements, and practicing your driving skills in a commercial vehicle.

Yes, there are some restrictions and limitations for drivers with a Class B CDL (Commercial Driver's License) license. Some of the common restrictions and limitations include:

1. Vehicle type: With a Class B CDL, you are licensed to operate a single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or a combination of vehicles with a GVWR of less than 26,001 pounds.

2. Passenger transport: If you do not have a passenger endorsement, you are not allowed to transport more than 15 passengers (including the driver) in the vehicle.

3. Hazardous materials: If you do not have a hazardous materials endorsement, you are not allowed to transport hazardous materials that require placards.

4. Air brakes: If you do not have an air brake endorsement, you are not allowed to operate vehicles with air brakes.

5. Time of day: Some states may restrict the times of day that drivers with a Class B CDL can operate commercial vehicles or require additional endorsements for night driving.

It's important to understand and comply with any restrictions or limitations associated with your Class B CDL license to avoid penalties or fines and maintain your driving privileges.

In Oklahoma, the Class B CDL (Commercial Driver's License) written test is only available in English. The Oklahoma Department of Public Safety does not provide interpreters or translated versions of the test. Therefore, you must be able to read and comprehend English to take the test and obtain a Class B CDL.

However, you may be able to use an interpreter during the skills test portion of the CDL exam. The interpreter must be able to speak English and the language you prefer to use during the test. You will need to provide your own interpreter, and they will need to pass a screening process before they can assist you during the exam.

It's important to note that being able to read and understand English is critical for commercial driving safety as road signs, instructions, and other important information are provided in English in the United States.

Yes, if you have a disability that impacts your ability to take the Class B CDL (Commercial Driver's License) written test, you may request accommodations. The Oklahoma Department of Public Safety provides accommodations for individuals with disabilities in compliance with the Americans with Disabilities Act (ADA).

To request accommodations, you will need to fill out the Request for Accommodations form available on the Oklahoma Department of Public Safety website. You will need to provide documentation of your disability and how it impacts your ability to take the test. The documentation should come from a qualified professional such as a doctor, psychologist, or other healthcare provider.

Some examples of accommodations that may be provided include extended testing time, a private testing room, or a reader or scribe. The Department will review your request and determine what accommodations are appropriate based on your specific needs and the requirements of the CDL written exam.

It's important to note that you must request accommodations in advance of taking the test to allow sufficient time for processing.

Yes, if you fail the Class B CDL (Commercial Driver's License) written test, you may retake the test. In Oklahoma, you are allowed to retake the written test up to three times within a 30-day period. If you fail the test three times, you will need to wait 30 days from the date of your last attempt before you can retake the test.

It's important to note that each time you take the written test, you will need to pay a fee. Therefore, it's a good idea to study and prepare thoroughly before taking the exam to increase your chances of passing on the first attempt.

If you do fail the written test, you will receive a report indicating which areas you need to improve upon. Use this information to focus your study efforts and improve your chances of passing on your next attempt.
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