Knowledge Test Class A
This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has two, three or four possible answer choices. Test questions come from the Nebraska Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
Number of Question
Passing Score
22. In a vehicle with dual air brakes, what happens if one system is low on pressure?
Explanation
In a dual air brake system, if one of the air systems gets very low on pressure, either the front or rear brakes will not be operating fully. You should bring your vehicle to a safe stop and have the air system repaired.
23. During a basic vehicle controls skills test exercise, your vehicle's final position should be:
Explanation
You should finish each exercise with your vehicle in the exact position described by the examiner. You can be penalized for failing to complete an exercise exactly in the manner described by the examiner, potentially resulting in failure of the basic control skills test.
24. When using the controlled braking method in an emergency situation, you should:
Explanation
The controlled braking method for emergency stops involves applying the brakes as hard as you can without locking the wheels. Keep steering wheel movements small when braking in this way.
25. During an applied leakage test, the maximum leakage rate for a double combination vehicle is:
Explanation
It is important to know the maximum air loss rate that is safe for your specific vehicle. A double combination vehicle should have a leakage rate no higher than 4 psi in a minute during an applied leakage test.
26. Where can you find the tire load rating?
Explanation
A tire load rating is the maximum safe weight that can be carried by a tire at a specified pressure. This number is stated on the side of each tire.
27. When driving under wet conditions, what does a lack of spray from other vehicles indicate?
Explanation
If the road appears to be wet but the wheels of other vehicles are no longer generating spray, ice has formed on the road. Drive with extra caution when operating on wet or icy roads.
28. During an inspection, slack adjusters on S-cam brakes should not move more than:
Explanation
Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
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Frequently Asked Questions
A Class A Commercial Driver's License (CDL) in Nebraska allows drivers to operate a combination of vehicles with a total weight of 26,001 pounds or more, including a towed vehicle that weighs more than 10,000 pounds. This type of license is required for drivers who operate vehicles such as tractor-trailers, tanker trucks, and livestock carriers.
To obtain a Class A CDL in Nebraska, you must pass a written knowledge test and a skills test. You will also need to provide proof of your identity, residency, and Social Security number. Additionally, you must pass a medical examination to ensure that you are physically qualified to operate a commercial vehicle.
It is important to note that there are additional endorsements that drivers can obtain for their CDL license in Nebraska, such as the Hazmat endorsement for transporting hazardous materials or the Tanker endorsement for operating tanker trucks.
To obtain a Class A CDL in Nebraska, you must pass a written knowledge test and a skills test. You will also need to provide proof of your identity, residency, and Social Security number. Additionally, you must pass a medical examination to ensure that you are physically qualified to operate a commercial vehicle.
It is important to note that there are additional endorsements that drivers can obtain for their CDL license in Nebraska, such as the Hazmat endorsement for transporting hazardous materials or the Tanker endorsement for operating tanker trucks.
With a Class A Commercial Driver's License (CDL) in Nebraska, you can operate a combination of vehicles with a total weight of 26,001 pounds or more, as long as the towed vehicle weighs more than 10,000 pounds. Some examples of vehicles you can operate with a Class A CDL license include:
- Tractor-trailers
- Livestock carriers
- Tanker trucks
- Flatbed trucks with trailers
- Dump trucks with trailers
- Double or triple trailers
It is important to note that even if you have a Class A CDL license, you may need additional endorsements to operate certain types of vehicles. For example, if you want to transport hazardous materials, you will need to obtain a Hazmat endorsement. If you want to operate a tanker truck, you will need to obtain a Tanker endorsement.
- Tractor-trailers
- Livestock carriers
- Tanker trucks
- Flatbed trucks with trailers
- Dump trucks with trailers
- Double or triple trailers
It is important to note that even if you have a Class A CDL license, you may need additional endorsements to operate certain types of vehicles. For example, if you want to transport hazardous materials, you will need to obtain a Hazmat endorsement. If you want to operate a tanker truck, you will need to obtain a Tanker endorsement.
To obtain a Class A Commercial Driver's License (CDL) in Nebraska, you must meet the following requirements:
1. Be at least 18 years of age to operate a commercial vehicle within the state of Nebraska or 21 years of age to operate a commercial vehicle across state lines or transport hazardous materials.
2. Possess a valid driver's license and provide proof of identity, residency, and Social Security number.
3. Pass a medical examination to ensure that you are physically qualified to operate a commercial vehicle, and provide proof of passing the examination.
4. Pass a written knowledge test that covers general knowledge of commercial driving rules and regulations, air brakes, combination vehicles, and other specialized topics.
5. Obtain a Commercial Learner's Permit (CLP), which requires passing a written test on general knowledge and obtaining any additional endorsements needed for your intended vehicle type.
6. Complete behind-the-wheel training with a qualified instructor, including at least 10 hours on the road and 15 hours of observation in the type of commercial vehicle you intend to operate.
7. Pass a skills test that includes pre-trip vehicle inspection, basic control skills, and on-road driving.
8. Pay the required fees for your CDL license and any additional endorsements needed.
It is important to note that additional endorsements may be required for certain types of commercial vehicles, such as hazardous materials or tanker trucks.
1. Be at least 18 years of age to operate a commercial vehicle within the state of Nebraska or 21 years of age to operate a commercial vehicle across state lines or transport hazardous materials.
2. Possess a valid driver's license and provide proof of identity, residency, and Social Security number.
3. Pass a medical examination to ensure that you are physically qualified to operate a commercial vehicle, and provide proof of passing the examination.
4. Pass a written knowledge test that covers general knowledge of commercial driving rules and regulations, air brakes, combination vehicles, and other specialized topics.
5. Obtain a Commercial Learner's Permit (CLP), which requires passing a written test on general knowledge and obtaining any additional endorsements needed for your intended vehicle type.
6. Complete behind-the-wheel training with a qualified instructor, including at least 10 hours on the road and 15 hours of observation in the type of commercial vehicle you intend to operate.
7. Pass a skills test that includes pre-trip vehicle inspection, basic control skills, and on-road driving.
8. Pay the required fees for your CDL license and any additional endorsements needed.
It is important to note that additional endorsements may be required for certain types of commercial vehicles, such as hazardous materials or tanker trucks.
To obtain a Class A Commercial Driver's License (CDL) in Nebraska, you must be at least 18 years old to operate a commercial vehicle within the state of Nebraska. However, you must be at least 21 years old to operate a commercial vehicle across state lines or transport hazardous materials. It is important to note that some employers may have their own age requirements for certain driving positions, so it's important to check with any potential employers before pursuing a CDL.
You may need additional endorsements on your Class A Commercial Driver's License (CDL) depending on the type of vehicle you intend to operate and the cargo you intend to transport. The following endorsements are available:
1. T - Double/Triple Trailers: Required for drivers pulling double or triple trailers.
2. P - Passenger: Required for drivers of vehicles designed to transport 16 or more passengers, including the driver.
3. N - Tank Vehicle: Required for drivers of vehicles used to transport liquids or gases in bulk containers with a capacity of 1,000 gallons or more.
4. H - Hazardous Materials: Required for drivers transporting hazardous materials that require placarding.
5. X - Combination of Tank Vehicle and Hazardous Materials: Required for drivers transporting both hazardous materials and liquids or gases in bulk containers with a capacity of 1,000 gallons or more.
To obtain these endorsements, you must pass additional knowledge tests and meet specific requirements depending on the endorsement type. It is important to note that some employers may require specific endorsements for certain driving positions, so it's important to check with any potential employers before pursuing a CDL.
1. T - Double/Triple Trailers: Required for drivers pulling double or triple trailers.
2. P - Passenger: Required for drivers of vehicles designed to transport 16 or more passengers, including the driver.
3. N - Tank Vehicle: Required for drivers of vehicles used to transport liquids or gases in bulk containers with a capacity of 1,000 gallons or more.
4. H - Hazardous Materials: Required for drivers transporting hazardous materials that require placarding.
5. X - Combination of Tank Vehicle and Hazardous Materials: Required for drivers transporting both hazardous materials and liquids or gases in bulk containers with a capacity of 1,000 gallons or more.
To obtain these endorsements, you must pass additional knowledge tests and meet specific requirements depending on the endorsement type. It is important to note that some employers may require specific endorsements for certain driving positions, so it's important to check with any potential employers before pursuing a CDL.
The Class A Commercial Driver's License (CDL) skills test is typically divided into three parts:
1. Pre-Trip Inspection: You will be required to perform a thorough inspection of your vehicle and demonstrate your knowledge of the vehicle's components and safety features.
2. Basic Vehicle Control: You will be required to demonstrate your ability to control your vehicle in a variety of situations, including straight line backing, offset backing, parallel parking, and alley docking.
3. On-Road Driving: You will be required to demonstrate your ability to safely operate your vehicle on public roads, including driving in traffic, turning, merging, and changing lanes.
During the skills test, you will be evaluated on your ability to follow safety procedures and use proper driving techniques. It is important to note that the skills test requirements may vary depending on the state and the specific CDL class being obtained. It is recommended that you review the CDL manual for your state and practice with a licensed CDL instructor before taking the skills test.
1. Pre-Trip Inspection: You will be required to perform a thorough inspection of your vehicle and demonstrate your knowledge of the vehicle's components and safety features.
2. Basic Vehicle Control: You will be required to demonstrate your ability to control your vehicle in a variety of situations, including straight line backing, offset backing, parallel parking, and alley docking.
3. On-Road Driving: You will be required to demonstrate your ability to safely operate your vehicle on public roads, including driving in traffic, turning, merging, and changing lanes.
During the skills test, you will be evaluated on your ability to follow safety procedures and use proper driving techniques. It is important to note that the skills test requirements may vary depending on the state and the specific CDL class being obtained. It is recommended that you review the CDL manual for your state and practice with a licensed CDL instructor before taking the skills test.
Yes, there are restrictions and limitations for drivers with a Class A Commercial Driver's License (CDL). Some of the most common restrictions and limitations include:
1. Air Brake Restriction: If you took the skills test in a vehicle without air brakes, you will have an air brake restriction on your CDL. This means that you are not licensed to operate a vehicle with air brakes.
2. Automatic Transmission Restriction: If you took the skills test in a vehicle with an automatic transmission, you will have an automatic transmission restriction on your CDL. This means that you are not licensed to operate a vehicle with a manual transmission.
3. Intrastate Only Restriction: Drivers who do not meet certain federal medical or age requirements may be restricted to driving within their state of residence only.
4. Hazmat Endorsement Restriction: Drivers who fail to pass the hazardous materials knowledge test or do not meet other requirements may be restricted from transporting hazardous materials.
5. Passenger Endorsement Restriction: Drivers who fail to pass the passenger transport knowledge test or do not meet other requirements may be restricted from transporting passengers.
It is important for drivers to be aware of any restrictions or limitations on their CDL and to follow all applicable rules and regulations when operating a commercial vehicle.
1. Air Brake Restriction: If you took the skills test in a vehicle without air brakes, you will have an air brake restriction on your CDL. This means that you are not licensed to operate a vehicle with air brakes.
2. Automatic Transmission Restriction: If you took the skills test in a vehicle with an automatic transmission, you will have an automatic transmission restriction on your CDL. This means that you are not licensed to operate a vehicle with a manual transmission.
3. Intrastate Only Restriction: Drivers who do not meet certain federal medical or age requirements may be restricted to driving within their state of residence only.
4. Hazmat Endorsement Restriction: Drivers who fail to pass the hazardous materials knowledge test or do not meet other requirements may be restricted from transporting hazardous materials.
5. Passenger Endorsement Restriction: Drivers who fail to pass the passenger transport knowledge test or do not meet other requirements may be restricted from transporting passengers.
It is important for drivers to be aware of any restrictions or limitations on their CDL and to follow all applicable rules and regulations when operating a commercial vehicle.
In Nebraska, the Class A Commercial Driver's License (CDL) written test is only available in English. The Nebraska Department of Motor Vehicles (DMV) requires all applicants to take the written test in English, regardless of their native language. However, the DMV does offer audio assistance in Spanish or a written translation of the exam in other languages. This assistance is provided to help non-English speakers better understand the questions and instructions on the exam. It is important to note that while the DMV may provide language assistance, all applicants are still required to have a basic understanding of English in order to operate a commercial vehicle safely on public roads.
Yes, you can request accommodations for the Class A Commercial Driver's License (CDL) written test if you have a disability. The Nebraska Department of Motor Vehicles (DMV) provides reasonable accommodations to individuals with disabilities, in order to ensure that they have an equal opportunity to obtain a CDL.
To request accommodations for the CDL written test, you will need to contact the DMV and provide documentation of your disability. The DMV will review your request and determine what accommodations are appropriate based on your needs.
Some examples of accommodations that the DMV may provide include:
- Extended time to complete the written test
- Large-print test materials
- Braille or audio versions of the test
- A sign language interpreter or other communication assistance
It is important to make your request for accommodations well in advance of your scheduled test date, in order to allow the DMV sufficient time to make arrangements. Additionally, it is important to note that any accommodations provided must not fundamentally alter the nature of the test or give you an unfair advantage over other CDL applicants.
To request accommodations for the CDL written test, you will need to contact the DMV and provide documentation of your disability. The DMV will review your request and determine what accommodations are appropriate based on your needs.
Some examples of accommodations that the DMV may provide include:
- Extended time to complete the written test
- Large-print test materials
- Braille or audio versions of the test
- A sign language interpreter or other communication assistance
It is important to make your request for accommodations well in advance of your scheduled test date, in order to allow the DMV sufficient time to make arrangements. Additionally, it is important to note that any accommodations provided must not fundamentally alter the nature of the test or give you an unfair advantage over other CDL applicants.
If you fail the Class A Commercial Driver's License (CDL) written test in Nebraska, you may retake the test. However, there are certain requirements and waiting periods that you must meet before you can retake the test.
If you fail the written test, you will be given a score report that shows which sections of the test you passed and which ones you failed. You must wait at least one business day before you can retake the test. If you fail the test three times, you must wait at least seven days before you can take it again.
Additionally, if you fail the written test, you may be required to pay a fee to retake it. The fee varies depending on the type of CDL and the number of times you have attempted the test.
It is important to note that while there is no limit to the number of times you can take the CDL written test in Nebraska, if you fail it multiple times, it may indicate that you need additional preparation or study before attempting it again. There are many resources available to help prepare for the CDL written test, including study guides, online practice tests, and training courses.
If you fail the written test, you will be given a score report that shows which sections of the test you passed and which ones you failed. You must wait at least one business day before you can retake the test. If you fail the test three times, you must wait at least seven days before you can take it again.
Additionally, if you fail the written test, you may be required to pay a fee to retake it. The fee varies depending on the type of CDL and the number of times you have attempted the test.
It is important to note that while there is no limit to the number of times you can take the CDL written test in Nebraska, if you fail it multiple times, it may indicate that you need additional preparation or study before attempting it again. There are many resources available to help prepare for the CDL written test, including study guides, online practice tests, and training courses.
