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. Test questions come from the Florida CDL Handbook. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination Vehicles, 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

15. Distracted driving:

Explanation
To reduce the risk of distraction, do not engage in complex or emotionally intense conversations while driving. Pre-programming radio stations before your trip and avoiding eating, drinking, or smoking while at the wheel can also help you avoid becoming distracted while driving. Remember that mental distractions that take your attention away from the task of driving can be just as dangerous as physical distractions.

16. A header board is used to:

Explanation
Front-end header boards, also known as "headache racks," protect drivers from moving cargo in the event of a crash or emergency stop.

17. Which of the following is not a crime that would disqualify an applicant from a hazardous materials endorsement?

Explanation
There are a number of crimes that will disqualify a person from receiving a hazardous materials endorsement for seven years. Among these offenses are arson, robbery, and crimes of dishonesty, fraud, or misrepresentation. More serious crimes, such as murder, result in a lifetime disqualification.

18. What does the air compressor governor do?

Explanation
In an air brake system, the air compressor governor controls when the air compressor pumps air into the air storage tanks.

19. Failing to drain the tanks in an air brake system can result in:

Explanation
In an air brake system, the air storage tanks must be drained to remove accumulated water and compressor oil. Failing to do this can cause damage. For example, water that has built up in the system could freeze in cold weather and cause brake failure.

20. In cold weather, an alcohol evaporator should be checked and filled:

Explanation
An alcohol evaporator can help prevent ice from building up in an air brake system. In cold weather, the evaporator should be checked and refilled every day.

21. If the brake pads rub against the brake drums and create too much heat:

Explanation
Brakes heat up with use. If they are overused and become too hot, expansion and chemical changes will make them less effective and eventually cause them to stop working altogether. This is known as "brake fade."

Frequently Asked Questions

A Class B CDL (Commercial Driver's License) is a type of license required for driving heavy vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more. This license also allows the driver to operate vehicles towing a trailer with a GVWR of less than 10,000 pounds. In Florida, a Class B CDL is required for operating a single vehicle with a GVWR of 26,001 pounds or more, or a combination of vehicles with a combined GVWR of less than 26,001 pounds.

Here are the steps to obtain a Class B CDL in Florida:

1. Obtain a Florida Commercial Learner's Permit (CLP) by passing the written test for the Class B CDL. You must be at least 18 years old to obtain a CLP and 21 years old to obtain a full Class B CDL.

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

3. Schedule and pass the driving skills test, which includes pre-trip inspection, basic vehicle control, and on-road driving.

4. Submit the necessary documentation and fees to the Department of Highway Safety and Motor Vehicles (DHSMV) to obtain your Class B CDL.

5. Maintain your Class B CDL by complying with all state and federal regulations, including regular medical examinations and recordkeeping requirements.

It is important to note that obtaining a Class B CDL may also require additional endorsements, such as hazardous materials or passenger transportation endorsements, depending on the type of vehicle you will be operating.

With a Class B CDL license in Florida, you are authorized to operate heavy vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more. You can also operate vehicles towing a trailer with a GVWR of less than 10,000 pounds. Examples of vehicles you can operate with a Class B CDL include:

- Straight trucks (e.g., dump trucks, delivery trucks, box trucks)
- Large buses (e.g., school buses, city buses)
- Segmented buses
- Tourist and charter buses
- Tractor-trailer combinations (also known as semi-trucks or 18-wheelers) with a trailer less than 10,000 pounds

It is important to note that additional endorsements may be required to operate certain types of vehicles or cargo. For example, a hazardous materials endorsement is required to transport hazardous materials, and a passenger endorsement is required to transport passengers.

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

1. Be at least 18 years old to obtain a Commercial Learner's Permit (CLP) and 21 years old for a full Class B CDL.

2. Hold a valid Florida driver's license.

3. Provide proof of identity and residency, such as a birth certificate, passport, or utility bill.

4. Pass a medical examination and obtain a Medical Examiner's Certificate to prove you are physically able to operate a commercial vehicle.

5. Pass a written test for the Class B CDL knowledge test.

6. Obtain a CLP by passing the written test.

7. Hold your CLP for at least 14 days before taking the driving skills test.

8. Pass the driving skills test, which includes pre-trip inspection, basic vehicle control, and on-road driving.

9. Pay the necessary fees to obtain your Class B CDL.

In addition to these requirements, you may need to obtain additional endorsements for certain types of vehicles or cargo, such as hazardous materials or passenger transportation endorsements.

It is important to note that commercial drivers are subject to additional regulations and requirements, including recordkeeping and periodic medical examinations, to ensure safety on the roads.

The minimum age requirement for a Class B CDL (Commercial Driver's License) in Florida is 18 years old to obtain a Commercial Learner's Permit (CLP), and 21 years old for a full Class B CDL.

Drivers who are between the ages of 18 and 20 may only operate commercial vehicles within the state of Florida, and cannot transport hazardous materials or passengers. They are also not eligible for an interstate commerce waiver.

It is important to note that even if you meet the minimum age requirement, you must also meet other requirements, such as passing a medical examination and obtaining a Medical Examiner's Certificate, passing written and driving skills tests, and obtaining any necessary endorsements.

You may need to obtain endorsements for certain types of vehicles or cargo, depending on the specific requirements of your job and the type of vehicle you will be operating with your Class B CDL (Commercial Driver's License).

The following endorsements are available for Class B CDL holders in Florida:

1. Passenger endorsement - required for drivers who will be transporting more than 15 passengers, such as in a bus.

2. School bus endorsement - required for drivers who will be operating a school bus.

3. Tanker endorsement - required for drivers who will be hauling liquids or gases in bulk containers.

4. Hazardous materials (HazMat) endorsement - required for drivers who will be transporting hazardous materials, as defined by the federal government.

To obtain any of these endorsements, you must pass additional knowledge tests and meet other requirements, such as background checks and fingerprinting. It is important to note that certain endorsements may also require additional training and certification.

It is recommended to check with your employer or the specific job requirements to determine if any endorsements are needed for your Class B CDL license.

The Class B CDL (Commercial Driver's License) skills test in Florida consists of three parts:

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, tires, lights, horn, and other important parts of the vehicle.

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

3. Road test: You will be required to drive the vehicle on public roads while demonstrating your ability to safely operate the vehicle and follow traffic laws.

During the skills test, you will be evaluated on your ability to perform each task safely and correctly. The examiner will use a scoring system to evaluate your performance and determine if you have passed or failed the test.

It is important to note that you must hold a valid Commercial Learner's Permit (CLP) for at least 14 days before you can take the skills test. You must also provide a properly equipped and registered vehicle for the test.

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

1. No passengers: If you have a Class B CDL without a passenger endorsement, you cannot transport more than one passenger who is riding with you to help in the operation of the commercial vehicle.

2. No HazMat: If you have a Class B CDL without a HazMat endorsement, you cannot transport hazardous materials.

3. No combination vehicles: A Class B CDL holder is not allowed to operate a combination of vehicles with a total weight of 26,001 pounds or more.

4. No air brakes: If you take your skills test in a vehicle without air brakes, your CDL will be restricted to vehicles without air brakes.

5. No manual transmission: If you take your skills test in an automatic transmission vehicle, your CDL will be restricted to automatic transmission vehicles only.

It is important to note that these restrictions and limitations may vary depending on the specific endorsements and restrictions on your CDL license. It is recommended to check with the Florida Department of Highway Safety and Motor Vehicles (DHSMV) or your employer for more information on any applicable restrictions or limitations.

Yes, you can take the Class B CDL (Commercial Driver's License) written test in a language other than English in Florida. The Florida Department of Highway Safety and Motor Vehicles (DHSMV) offers the written test in several languages, including Spanish, Haitian Creole, and French.

To take the written test in a language other than English, you must first obtain a Florida CDL handbook in that language. You can download the handbook from the DHSMV website or obtain a hard copy from a local DHSMV office.

Once you have studied the handbook, you can schedule an appointment to take the written test at a DHSMV office that offers testing in your preferred language. You will need to bring proper identification and payment for any testing fees.

It is important to note that the skills test must be taken in English, as it involves communication with the examiner and following traffic signs and signals in English.

Yes, you may request accommodations for the Class B CDL (Commercial Driver's License) written test due to a disability in Florida. The Florida Department of Highway Safety and Motor Vehicles (DHSMV) offers reasonable accommodations to individuals with disabilities in accordance with the Americans with Disabilities Act (ADA).

To request accommodations, you must complete an ADA Accommodation Request form and submit it to the DHSMV. You can obtain the form from a local DHSMV office or download it from the DHSMV website.

The form requires documentation of your disability and the specific accommodations you are requesting. Examples of accommodations that may be provided include extended testing time, a separate testing room, or a sign language interpreter.

Once your request has been received and reviewed by the DHSMV, they will contact you to schedule your test with the requested accommodations. It is important to submit your request well in advance of your desired testing date to allow for processing time.

If you have any questions or concerns about requesting accommodations for the Class B CDL written test, you can contact the DHSMV directly for assistance.

If you fail the Class B CDL (Commercial Driver's License) written test in Florida, you can retake it. However, you must wait at least one day before taking the test again.

When you retake the test, you will need to pay the testing fee again. The fee for the Class B CDL written test is $10.

It is important to note that there is a limit to the number of times you can take the written test in a 30-day period. If you fail the test three times within a 30-day period, you will be required to wait at least 30 days before taking the test again.

To increase your chances of passing the test on your next attempt, it is recommended that you review the Florida CDL Handbook thoroughly and take practice tests before retaking the exam. You can find practice tests online or through commercial CDL training programs.

If you have any questions or concerns about retaking the Class B CDL written test, you can contact the Florida Department of Highway Safety and Motor Vehicles (DHSMV) for assistance.
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