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 ore 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 ore more people (including the driver)t. To receive this license, applicants must pass a 50-question test. Each question has four answer choices. To pass, applicants must answer 40 questions correctly. Test questions come from the Texas Commercial Motor Vehicle Drivers 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

29. If driving in a foggy area, you should not:

Explanation
It is safest not to drive in foggy areas. However, if you must drive through fog, you should slow down, use your low beam headlights and fog lights, and turn on your four-way flashers.

30. When using road speed to know when to switch gears, you should:

Explanation
There are two indicators that determine when you need to shift into a higher gear. One indicator is the engine speed (rpm). You should read your vehicle's manual to learn its rpm range and shift up when you reach the top of that range. The other indicator is road speed (mph). You should learn which speeds each gear can accommodate, then keep an eye on the speedometer and shift up as needed.

31. In very hot weather, tires should be checked regularly because:

Explanation
Air expands as it gets warmer, so the air pressure in your tires could reach dangerously high levels while being used in very hot weather. If this happens, stop and let your tires cool. Do not let air out of the tires, as this could result in the pressure dropping to an unsafe level once the tires cool down.

32. How many air storage tanks are used in an air brake system?

Explanation
Air storage tanks are used to hold compressed air. The number and size of air tanks in an air brake system varies among vehicles.

33. When transporting cargo, drivers must check the securement of the cargo every:

Explanation
The securement of cargo must be checked before beginning a trip, within the first 50 miles of a trip, and then again every three hours or 150 miles.

34. Hydroplaning usually occurs:

Explanation
In places where water collects on the road, it is possible for a vehicle to hydroplane. Low tire pressure or worn tire tread makes this more likely to happen. If there is enough water on a road surface, hydroplaning can occur at speeds as low as 30 mph.

35. You may be denied a HazMat endorsement if:

Explanation
You will be denied a HazMat endorsement, or lose an existing endorsement, if you are not a lawful permanent U.S. resident; you renounce your U.S. citizenship; you are wanted for, under indictment for, or convicted of certain felonies; you are judged as mentally unstable or are committed to a mental institution; or you are deemed to pose a security threat by the Transportation Security Administration (TSA).

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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, towing a vehicle that weighs less than 10,000 pounds.

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

1. Meet the eligibility requirements: You must be at least 18 years old, have a valid Texas driver's license, and have no previous disqualifications from driving commercial vehicles.

2. Obtain a Commercial Learner's Permit (CLP): To obtain a CLP, you must pass the written knowledge test for the Class B CDL and any additional endorsements you may need (such as passenger or hazmat). You must also pass a medical exam and meet other federal and state requirements.

3. Practice driving with your CLP: You must practice driving with your CLP for at least 14 days before taking the skills test.

4. Schedule and pass the skills test: The skills test consists of three parts - pre-trip inspection, basic vehicle control, and on-road driving. You must pass all three parts to obtain your Class B CDL.

5. Pay the required fees: The fees for obtaining a Class B CDL in Texas vary depending on your age and other factors. You can find more information on the Texas Department of Public Safety website.

Once you have obtained your Class B CDL in Texas, you can operate vehicles such as large buses, dump trucks, and delivery trucks. Note that certain endorsements may be required for specific types of vehicles or cargo.

With a Class B Commercial Driver's License (CDL) in Texas, 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, towing a vehicle that weighs less than 10,000 pounds.

Some examples of vehicles you can operate with a Class B CDL license in Texas include:

- Straight trucks (e.g. delivery trucks, box trucks)
- Large buses (e.g. city buses, tour buses)
- Dump trucks
- Tow trucks
- Cement mixers
- Refrigerated trucks

It's important to note that certain endorsements may be required for specific types of vehicles or cargo. For example, if you want to transport hazardous materials or passengers, you will need to obtain additional endorsements on your CDL.

To obtain a Class B Commercial Driver's License (CDL) in Texas, you must meet certain requirements. Here are the requirements:

1. Age: You must be at least 18 years old to obtain a Class B CDL license in Texas. However, if you plan to transport hazardous materials, you must be at least 21 years old.

2. Hold a valid Texas driver's license: You must have a valid Texas driver's license to obtain a Class B CDL.

3. Pass a medical exam: You must pass a medical exam to ensure that you are physically qualified to operate a commercial vehicle.

4. Obtain a Commercial Learner's Permit (CLP): To obtain a CLP, you must pass the written knowledge test for the Class B CDL and any additional endorsements you may need (such as passenger or hazmat). You must also pass a medical exam and meet other federal and state requirements.

5. Practice driving with your CLP: You must practice driving with your CLP for at least 14 days before taking the skills test.

6. Pass the skills test: The skills test consists of three parts - pre-trip inspection, basic vehicle control, and on-road driving. You must pass all three parts to obtain your Class B CDL.

7. Pay the required fees: The fees for obtaining a Class B CDL in Texas vary depending on your age and other factors.

It's important to note that certain endorsements may be required for specific types of vehicles or cargo, such as hazardous materials or passenger transportation.

In Texas, the minimum age requirement for a Class B Commercial Driver's License (CDL) is 18 years old. However, there are some restrictions for drivers under 21 years old.

If you are between the ages of 18 and 20, you can only drive within the state of Texas and cannot transport hazardous materials. Additionally, you are not eligible for a passenger endorsement, which would allow you to transport passengers for hire.

If you are between the ages of 21 and 24, you can drive within Texas and also transport cargo across state lines, but you cannot transport hazardous materials.

If you are 21 years old or older, there are no restrictions on the types of vehicles or cargo you can transport with a Class B CDL in Texas. However, certain endorsements may have additional age requirements (e.g. hazmat endorsement requires a minimum age of 21).

It depends on the type of vehicle you plan to operate and the type of cargo you plan to transport. In Texas, there are several endorsements that can be added to a Class B Commercial Driver's License (CDL), including:

1. Passenger endorsement: Required to operate a vehicle designed to transport 16 or more passengers (including the driver).

2. School bus endorsement: Required to operate a school bus designed to transport 16 or more passengers (including the driver).

3. Tanker endorsement: Required to transport liquids or gases in a tank that has a capacity of 1,000 gallons or more.

4. Hazardous materials (Hazmat) endorsement: Required to transport hazardous materials in amounts that require placards.

5. Combination tanker and Hazmat endorsement: Required to transport both hazardous materials and liquids or gases in a tank that has a capacity of 1,000 gallons or more.

To obtain any of these endorsements, you must pass additional written exams and meet other requirements, such as background checks and additional training or certification.

The Class B CDL skills test in Texas consists of three parts: pre-trip inspection, basic vehicle control, and on-road driving.

1. Pre-trip inspection: You will be asked to inspect the vehicle to make sure it is safe to drive. You will need to identify and explain the function of various parts and systems of the vehicle, such as brakes, lights, tires, and steering.

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 drive the vehicle on public roads while following the instructions of the examiner. The purpose of this part is to evaluate your ability to safely operate the vehicle in traffic.

During the skills test, you will be evaluated on your ability to perform each task safely and correctly. If you make a critical error or violate a traffic law, you may fail the test.

It's important to note that you must have a valid Texas Class B instruction permit before taking the skills test. Additionally, you must provide a vehicle that meets all the requirements for a Class B CDL and have proof of insurance for that vehicle.

Yes, there are some restrictions and limitations for drivers with a Class B CDL license in Texas, including:

1. Vehicle weight: A Class B CDL allows you to operate a single vehicle with a weight of 26,001 pounds or more. However, if you are towing a vehicle with a weight of 10,000 pounds or less, the combined weight of the two vehicles cannot exceed 26,001 pounds.

2. Passenger limits: If you have a passenger endorsement on your Class B CDL, you can transport up to 16 passengers (including the driver). If you have a school bus endorsement, you can transport more than 16 passengers.

3. Hazardous materials: If you have a Hazmat endorsement on your Class B CDL, there may be additional restrictions on the types and amounts of hazardous materials you can transport.

4. Interstate vs intrastate: A Class B CDL may be valid for both interstate and intrastate commerce, but there may be additional requirements for drivers who operate across state lines.

5. Medical certification: You must have a valid medical certification to operate a commercial motor vehicle (CMV) with a Class B CDL. Depending on your age and other factors, this certification may need to be renewed every one or two years.

It's important to know and follow all restrictions and limitations that apply to your Class B CDL license in order to avoid fines or other penalties.

In Texas, the Class B CDL written test is available in English and Spanish. If you prefer to take the test in Spanish, you can request a Spanish version at your local driver license office.

It's important to note that the skills test, which involves driving a commercial vehicle, is only available in English. Additionally, if you plan to operate a commercial vehicle outside of Texas, you may need to take the test in English in order to comply with federal regulations.

If you have any questions or concerns about taking the Class B CDL written test in a language other than English, you can contact your local driver license office or visit the Texas Department of Public Safety website for more information.

Yes, you can request accommodations for the Class B CDL written test if you have a disability that would impede your ability to take the test under normal conditions. The Texas Department of Public Safety (DPS) provides reasonable accommodations for individuals with disabilities, in compliance with the Americans with Disabilities Act (ADA).

To request accommodations, you will need to complete a Request for Reasonable Accommodations form and submit it to the DPS. The form is available on the DPS website or by contacting your local driver license office. You will need to provide documentation of your disability and specify the accommodations you are requesting.

Some examples of possible accommodations for the Class B CDL written test include:

- Extended testing time
- A separate testing area
- A reader or scribe
- Assistive technology or special equipment

The DPS will review your request and determine whether your requested accommodations are reasonable and appropriate. It's important to submit your request as early as possible, since it may take several weeks for the DPS to review and approve your request.

If you have any questions or concerns about requesting accommodations for the Class B CDL written test, you can contact your local driver license office or visit the Texas Department of Public Safety website for more information.

If you fail the Class B CDL written test in Texas, you can retake the test as soon as the next business day. However, you will need to pay another testing fee each time you take the test.

It's important to note that there is a limit to how many times you can take the test in a given period. According to Texas Department of Public Safety (DPS) policy, you are allowed a maximum of three attempts to pass the written test within a 90-day period. If you fail three times within this period, you will need to wait 90 days from the date of your last attempt before you can take the test again.

If you are having difficulty passing the Class B CDL written test, it may be helpful to study the Texas Commercial Motor Vehicle Drivers Handbook and take practice tests to improve your understanding of the material. You can also consider enrolling in a commercial driver's license training program to receive more comprehensive instruction and practice.

If you have any questions or concerns about retaking the Class B CDL written test in Texas, you can contact your local driver license office or visit the Texas Department of Public Safety website for more information.
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