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 four possible answer choices. Test questions come from the New Hampshire CDL Driver’s Guide. 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. If the low pressure warning light comes on while you are driving:
Explanation
If the low air pressure warning light turns on, you should stop and safely park your vehicle as soon as possible. Controlled braking will be possible only as long as enough air remains in the tanks.
9. When checking the air and electrical lines during a vehicle inspection, all of the following should be true, except:
Explanation
When examining the air and electrical lines as part of your vehicle inspection test, you must listen for leaks. Ensure that the air hoses and electrical lines are not cut, chafed, spliced, or worn. Make sure air and electrical lines are not tangled, pinched, or dragging against tractor parts.
10. When backing with a trailer:
Explanation
When backing with a trailer, you should pull up to reposition your vehicle as needed.
11. During a basic vehicle control skills test, you may be asked to:
Explanation
Maneuvers that may be included in the basic vehicle control skills test include straight line backing, offset back/right parking, offset back/left parking, driver side parallel parking, conventional parallel parking, and alley docking.
12. If the safety relief valve in the air brake system releases air:
Explanation
An air brake system has a safety relief valve, which releases air from the tanks if the pressure gets too high. If the valve must operate, something in the system is wrong and should be addressed by a mechanic.
13. Before beginning downhill, you should:
Explanation
On a steep downgrade, you must use the engine's braking effect as your primary method of speed control. Be sure to decelerate and downshift appropriately before beginning to drive down the hill. Relying too heavily on the brakes may cause them to overheat and fade, becoming less effective.
14. If you are braking on dry pavement while traveling at 55 mph, how much distance will brake lag add to your overall stopping distance?
Explanation
The total stopping distance for vehicles equipped with air brakes is made up of four factors: perception distance, reaction distance, brake lag distance, and braking distance. When braking at a speed of 55 mph while driving on dry pavement, the brake lag can add around 32 feet to the vehicle's total stopping distance.
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Frequently Asked Questions
A Class B CDL license in New Hampshire is a commercial driver's license that allows the holder to operate a single vehicle with a weight of 26,001 or more pounds, or a combination of vehicles with a total weight of 26,001 or more pounds. This type of license is required for drivers who operate vehicles such as dump trucks, tow trucks, and delivery trucks.
Here are the steps to obtain a Class B CDL license in New Hampshire:
1. Obtain and study the New Hampshire Commercial Driver License Manual.
2. Obtain a medical certificate from a licensed medical examiner.
3. Pass the vision test at the DMV.
4. Pass the knowledge test (written exam) at the DMV for obtaining a Class B CDL license.
5. Schedule and pass a road skills test with an approved third-party tester or at DMV.
6. Pay the required fees and obtain your Class B CDL license.
It's important to note that additional endorsements may be required for certain types of vehicles, such as those carrying hazardous materials or passengers.
Here are the steps to obtain a Class B CDL license in New Hampshire:
1. Obtain and study the New Hampshire Commercial Driver License Manual.
2. Obtain a medical certificate from a licensed medical examiner.
3. Pass the vision test at the DMV.
4. Pass the knowledge test (written exam) at the DMV for obtaining a Class B CDL license.
5. Schedule and pass a road skills test with an approved third-party tester or at DMV.
6. Pay the required fees and obtain your Class B CDL license.
It's important to note that additional endorsements may be required for certain types of vehicles, such as those carrying hazardous materials or passengers.
With a Class B CDL license in New Hampshire, you can operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 or more pounds. You can also operate a combination of vehicles with a total weight of 26,001 or more pounds, where the vehicle being towed has a GVWR of less than 10,000 pounds.
Some examples of vehicles you can operate with a Class B CDL license include:
- Straight trucks (e.g. dump trucks, delivery trucks)
- Large buses (e.g. city buses, school buses)
- Box trucks with attached trailers
- Tow trucks with attached trailers
- Cement mixers
- Garbage trucks
- Refrigerated trucks
It's important to note that if you want to operate a vehicle with a GVWR of over 26,001 pounds and towing a vehicle with a GVWR of over 10,000 pounds, you will need to obtain a Class A CDL license in New Hampshire.
Some examples of vehicles you can operate with a Class B CDL license include:
- Straight trucks (e.g. dump trucks, delivery trucks)
- Large buses (e.g. city buses, school buses)
- Box trucks with attached trailers
- Tow trucks with attached trailers
- Cement mixers
- Garbage trucks
- Refrigerated trucks
It's important to note that if you want to operate a vehicle with a GVWR of over 26,001 pounds and towing a vehicle with a GVWR of over 10,000 pounds, you will need to obtain a Class A CDL license in New Hampshire.
To obtain a Class B CDL license in New Hampshire, you must meet the following requirements:
1. Be at least 18 years of age.
2. Hold a valid New Hampshire driver's license.
3. Obtain a medical certificate from a licensed medical examiner to prove that you are physically fit to operate a commercial vehicle.
4. Pass a vision test at the DMV.
5. Pass the written knowledge test for a Class B CDL license at the DMV.
6. Schedule and pass a road skills test with an approved third-party tester or at DMV.
7. Pay the required fees.
It is important to note that additional endorsements may be required for certain types of vehicles, such as those carrying hazardous materials or passengers. These endorsements will require additional knowledge and skills tests, as well as background checks and fingerprinting.
1. Be at least 18 years of age.
2. Hold a valid New Hampshire driver's license.
3. Obtain a medical certificate from a licensed medical examiner to prove that you are physically fit to operate a commercial vehicle.
4. Pass a vision test at the DMV.
5. Pass the written knowledge test for a Class B CDL license at the DMV.
6. Schedule and pass a road skills test with an approved third-party tester or at DMV.
7. Pay the required fees.
It is important to note that additional endorsements may be required for certain types of vehicles, such as those carrying hazardous materials or passengers. These endorsements will require additional knowledge and skills tests, as well as background checks and fingerprinting.
In New Hampshire, the minimum age requirement for a Class B CDL license is 18 years old. However, if you plan to transport hazardous materials, you must be at least 21 years old to obtain the necessary endorsement. Additionally, if you plan to drive across state lines, you must be at least 21 years old due to federal regulations.
Yes, you may need endorsements for a Class B CDL license depending on the type of vehicle you plan to operate and the cargo you plan to transport. Some common endorsements for a Class B CDL license include:
1. Passenger endorsement (P) - required for drivers who will be operating a vehicle designed to transport 16 or more passengers, including the driver.
2. School bus endorsement (S) - required for drivers who will be operating a school bus.
3. Tanker endorsement (T) - required for drivers who will be operating a vehicle that transports liquids or gases in bulk containers with a capacity of 1,000 gallons or more.
4. Hazardous materials endorsement (H) - required for drivers who will be transporting hazardous materials in amounts that require placards on the vehicle.
To obtain these endorsements, you will need to pass additional knowledge and skills tests, as well as undergo background checks and fingerprinting.
1. Passenger endorsement (P) - required for drivers who will be operating a vehicle designed to transport 16 or more passengers, including the driver.
2. School bus endorsement (S) - required for drivers who will be operating a school bus.
3. Tanker endorsement (T) - required for drivers who will be operating a vehicle that transports liquids or gases in bulk containers with a capacity of 1,000 gallons or more.
4. Hazardous materials endorsement (H) - required for drivers who will be transporting hazardous materials in amounts that require placards on the vehicle.
To obtain these endorsements, you will need to pass additional knowledge and skills tests, as well as undergo background checks and fingerprinting.
The Class B CDL skills test is designed to evaluate your ability to control and operate a Class B vehicle. The skills test is broken down into three parts:
1. Pre-trip inspection: You will be asked to perform a thorough inspection of your vehicle to ensure that it is safe to operate. You will need to identify various parts of the vehicle, such as the engine, tires, brakes, and lights, and explain how each component should be inspected.
2. Basic vehicle control: You will be asked to demonstrate your ability to control the vehicle in various driving situations. This may include backing up, turning, shifting gears, and maneuvering the vehicle through a course or obstacle course.
3. Road test: You will need to demonstrate your ability to operate the vehicle safely on public roads. This will involve driving on various types of roads, including highways and city streets, and performing tasks such as merging into traffic, changing lanes, and making turns.
During the skills test, you will be evaluated on your ability to perform these tasks safely and effectively. To pass the test, you must demonstrate that you have a good understanding of the rules of the road and can operate the vehicle safely in various situations.
1. Pre-trip inspection: You will be asked to perform a thorough inspection of your vehicle to ensure that it is safe to operate. You will need to identify various parts of the vehicle, such as the engine, tires, brakes, and lights, and explain how each component should be inspected.
2. Basic vehicle control: You will be asked to demonstrate your ability to control the vehicle in various driving situations. This may include backing up, turning, shifting gears, and maneuvering the vehicle through a course or obstacle course.
3. Road test: You will need to demonstrate your ability to operate the vehicle safely on public roads. This will involve driving on various types of roads, including highways and city streets, and performing tasks such as merging into traffic, changing lanes, and making turns.
During the skills test, you will be evaluated on your ability to perform these tasks safely and effectively. To pass the test, you must demonstrate that you have a good understanding of the rules of the road and can operate the vehicle safely in various situations.
Yes, there are some restrictions and limitations for drivers with a Class B CDL license. These may include:
1. Vehicle weight limits: Depending on the state, there may be weight limits for Class B vehicles. For example, in New Hampshire, Class B vehicles are limited to a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
2. Passenger limits: Drivers with a Class B CDL license may be limited in the number of passengers they can transport. For example, in New Hampshire, drivers with a Class B CDL and a passenger endorsement can transport up to 16 passengers, including the driver.
3. Hazardous materials: Drivers with a Class B CDL license who transport hazardous materials must comply with additional regulations and restrictions. They must have a hazardous materials endorsement on their CDL and follow specific procedures for handling and transporting these materials.
4. Vehicle type: The Class B CDL license allows drivers to operate straight trucks and large buses but does not allow them to operate tractor-trailers or other combination vehicles.
It is important to check with your state's Department of Motor Vehicles (DMV) for specific information on any restrictions or limitations that apply to Class B CDL holders in your state.
1. Vehicle weight limits: Depending on the state, there may be weight limits for Class B vehicles. For example, in New Hampshire, Class B vehicles are limited to a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
2. Passenger limits: Drivers with a Class B CDL license may be limited in the number of passengers they can transport. For example, in New Hampshire, drivers with a Class B CDL and a passenger endorsement can transport up to 16 passengers, including the driver.
3. Hazardous materials: Drivers with a Class B CDL license who transport hazardous materials must comply with additional regulations and restrictions. They must have a hazardous materials endorsement on their CDL and follow specific procedures for handling and transporting these materials.
4. Vehicle type: The Class B CDL license allows drivers to operate straight trucks and large buses but does not allow them to operate tractor-trailers or other combination vehicles.
It is important to check with your state's Department of Motor Vehicles (DMV) for specific information on any restrictions or limitations that apply to Class B CDL holders in your state.
The availability of non-English language options for the Class B CDL written test varies by state. In some states, the test may be available in languages other than English, while in others, it may only be available in English.
In New Hampshire, the Class B CDL written test is only available in English. However, the DMV offers an audio version of the test for those who have difficulty reading or have limited English proficiency. The audio version of the test is available in English and Spanish.
It is important to check with your state's DMV to see what language options are available for the Class B CDL written test. If a non-English version of the test is not available, you may need to take steps to improve your English language skills before taking the test.
In New Hampshire, the Class B CDL written test is only available in English. However, the DMV offers an audio version of the test for those who have difficulty reading or have limited English proficiency. The audio version of the test is available in English and Spanish.
It is important to check with your state's DMV to see what language options are available for the Class B CDL written test. If a non-English version of the test is not available, you may need to take steps to improve your English language skills before taking the test.
Yes, if you have a disability that affects your ability to take the Class B CDL written test, you may be eligible for accommodations. In the United States, this falls under the Americans with Disabilities Act (ADA).
To request accommodations for the Class B CDL written test due to a disability, you should contact your state's Department of Motor Vehicles (DMV) or commercial driver's license (CDL) office. The DMV will provide you with information on the types of accommodations that are available and the process for requesting them.
Examples of accommodations that may be available include extra testing time, a separate testing room, an interpreter or reader, or a special format for the test. However, each request is evaluated on a case-by-case basis and may depend on the specific disability and its impact on test-taking.
It is important to contact your state's DMV well in advance of your scheduled test date to request accommodations and allow sufficient time for processing.
To request accommodations for the Class B CDL written test due to a disability, you should contact your state's Department of Motor Vehicles (DMV) or commercial driver's license (CDL) office. The DMV will provide you with information on the types of accommodations that are available and the process for requesting them.
Examples of accommodations that may be available include extra testing time, a separate testing room, an interpreter or reader, or a special format for the test. However, each request is evaluated on a case-by-case basis and may depend on the specific disability and its impact on test-taking.
It is important to contact your state's DMV well in advance of your scheduled test date to request accommodations and allow sufficient time for processing.
Yes, if you fail the Class B CDL written test, you will be allowed to retake it. However, you may be required to wait a specific amount of time before taking the test again. The waiting period varies by state, but it is generally between one and two weeks.
In New Hampshire, you are allowed to retake the Class B CDL written test as many times as necessary, but you must wait at least three business days before taking it again. There is also a fee for each attempt.
It is important to review the material thoroughly before retaking the test to increase your chances of passing. You may also consider taking a commercial driver's license (CDL) training course to prepare for the test and gain additional knowledge and skills.
If you continue to have difficulty passing the Class B CDL written test, you may want to seek additional assistance or tutoring to help improve your understanding of the material.
In New Hampshire, you are allowed to retake the Class B CDL written test as many times as necessary, but you must wait at least three business days before taking it again. There is also a fee for each attempt.
It is important to review the material thoroughly before retaking the test to increase your chances of passing. You may also consider taking a commercial driver's license (CDL) training course to prepare for the test and gain additional knowledge and skills.
If you continue to have difficulty passing the Class B CDL written test, you may want to seek additional assistance or tutoring to help improve your understanding of the material.
