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 70-question test. Test questions come from the Texas Commercial Motor Vehicle Drivers Handbook. Each question has four answer choices. To pass, applicants must answer 56 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. Endorsemetns that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, Doubles/Triples, HazMat and Tank, Air Brakes and School bus.
Number of Question
Passing Score
43. Rims with welding repairs:
Explanation
A driver should inspect wheels before a drive, specifically looking for damage on the wheels and rims. Wheels or rims that have had welding repairs are not safe for use.
44. When traction is poor, a driver should accelerate slowly:
Explanation
Speeding up too quickly on a road with poor traction could cause a driver to lose control of their vehicle. In conditions that cause poor traction, a driver should accelerate especially smoothly and gradually.
45. On a truck with air brakes, the braking system’s air compressor:
Explanation
In an air brake system, the air compressor pumps air into the air storage tanks. The air compressor is controlled by the air compressor governor.
46. 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.
47. When traveling down a downgrade, the speed of a vehicle will likely:
Explanation
On a downgrade, the force of gravity will cause a vehicle's speed to increase. When approaching a downgrade, choose to travel at a speed that will be safe for the size and weight of your vehicle.
48. Which of the following will not result in losing your CDL for at least one year for a first offense?
Explanation
A number of offenses will result in a loss of one's CDL for at least one year following a first offense. Among others, these offenses include driving a commercial motor vehicle (CMV) with a blood alcohol concentration (BAC) of 0.04 percent or higher; driving a CMV while under the influence of alcohol, even if under the legal limit; and refusing to undergo blood alcohol testing, if asked.
49. If another driver is following you too closely, you should do all of the following, except:
Explanation
If you are being followed too closely, you should increase your following distance, avoid making quick moves, and avoid relying on tricks (such as flashing your lights) to help other drivers pass. Speeding up may only increase the danger by causing the tailgater to continue tailgating you at a higher speed.
50. 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.
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Frequently Asked Questions
A Class A CDL (Commercial Driver's License) is a type of license required to operate a combination of vehicles with a total weight of 26,001 pounds or more, provided that the vehicle being towed weighs more than 10,000 pounds. This type of license also allows the holder to operate vehicles in Class B and C categories. In Texas, a Class A CDL is required for drivers who operate tractor-trailers, semi-trucks, and other large commercial vehicles.
With a Class A CDL in Texas, you can operate any combination of vehicles with a total weight of 26,001 pounds or more, provided that the vehicle being towed weighs more than 10,000 pounds. This includes tractor-trailers, semi-trucks, and other large commercial vehicles. You can also operate any vehicle in Class B and C categories. However, it is important to note that additional endorsements may be required for certain types of vehicles, such as hazardous materials or passenger transport vehicles.
To obtain a Class A CDL license in Texas, you must meet the following requirements:
1. Be at least 18 years of age.
2. Hold a valid Texas driver's license.
3. Have proof of U.S. citizenship or lawful permanent residency.
4. Pass a medical examination and obtain a medical certificate.
5. Successfully complete a knowledge test, which includes general knowledge, air brakes, and combination vehicle information.
6. Obtain a Commercial Learner's Permit (CLP) by passing the required knowledge tests and meeting other state requirements.
7. Complete behind-the-wheel training and pass a skills test in a vehicle that meets the requirements for a Class A CDL.
It is important to note that additional endorsements may be required for certain types of vehicles, such as hazardous materials or passenger transport vehicles, which may involve additional testing and training.
1. Be at least 18 years of age.
2. Hold a valid Texas driver's license.
3. Have proof of U.S. citizenship or lawful permanent residency.
4. Pass a medical examination and obtain a medical certificate.
5. Successfully complete a knowledge test, which includes general knowledge, air brakes, and combination vehicle information.
6. Obtain a Commercial Learner's Permit (CLP) by passing the required knowledge tests and meeting other state requirements.
7. Complete behind-the-wheel training and pass a skills test in a vehicle that meets the requirements for a Class A CDL.
It is important to note that additional endorsements may be required for certain types of vehicles, such as hazardous materials or passenger transport vehicles, which may involve additional testing and training.
In Texas, the minimum age requirement for a Class A CDL license is 18 years old. However, if you plan to drive a commercial vehicle across state lines or transport hazardous materials, you must be at least 21 years old. Additionally, some employers may have their own age requirements for hiring CDL drivers, so it is important to check with them before pursuing a CDL license.
Yes, you may need endorsements for a Class A CDL license depending on the type of cargo you plan to transport. The following are some of the endorsements that you can obtain:
1. Hazmat endorsement: This endorsement is required to transport any hazardous materials that require placards on the vehicle.
2. Tanker endorsement: This endorsement is required for drivers who plan to transport liquid or gaseous materials in bulk containers.
3. Double/triple trailer endorsement: This endorsement is required for drivers who plan to tow two or three trailers at the same time.
4. Passenger endorsement: This endorsement is required for drivers who plan to transport passengers in a commercial vehicle, such as a bus.
Note that obtaining an endorsement often requires additional knowledge and skills tests, as well as meeting other state and federal requirements.
1. Hazmat endorsement: This endorsement is required to transport any hazardous materials that require placards on the vehicle.
2. Tanker endorsement: This endorsement is required for drivers who plan to transport liquid or gaseous materials in bulk containers.
3. Double/triple trailer endorsement: This endorsement is required for drivers who plan to tow two or three trailers at the same time.
4. Passenger endorsement: This endorsement is required for drivers who plan to transport passengers in a commercial vehicle, such as a bus.
Note that obtaining an endorsement often requires additional knowledge and skills tests, as well as meeting other state and federal requirements.
The Class A CDL Skills Test in Texas consists of three parts: the pre-trip inspection, basic vehicle control, and on-road driving. Here are the details of each part:
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. You will need to explain and demonstrate each step of the inspection process, including checking the brakes, lights, tires, and other components.
2. Basic vehicle control: You will be asked to demonstrate your ability to control the vehicle in different situations, such as backing up, turning, and maneuvering in tight spaces.
3. On-road driving: You will need to demonstrate your ability to safely operate a commercial vehicle on public roads. During this part of the test, you will be asked to drive in various traffic situations, such as merging onto highways, changing lanes, turning at intersections, and driving on different road types.
The test is administered by a Texas Department of Public Safety (DPS) examiner who will evaluate your performance during each part of the test. To pass the test, you must meet all the criteria set by the DPS examiner.
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. You will need to explain and demonstrate each step of the inspection process, including checking the brakes, lights, tires, and other components.
2. Basic vehicle control: You will be asked to demonstrate your ability to control the vehicle in different situations, such as backing up, turning, and maneuvering in tight spaces.
3. On-road driving: You will need to demonstrate your ability to safely operate a commercial vehicle on public roads. During this part of the test, you will be asked to drive in various traffic situations, such as merging onto highways, changing lanes, turning at intersections, and driving on different road types.
The test is administered by a Texas Department of Public Safety (DPS) examiner who will evaluate your performance during each part of the test. To pass the test, you must meet all the criteria set by the DPS examiner.
Yes, there are some restrictions and limitations for drivers with a Class A CDL license in Texas. Here are some of the most common ones:
1. Endorsement restrictions: If you have a Class A CDL with specific endorsements, such as a hazmat or tanker endorsement, you may be restricted to only driving vehicles that require those endorsements.
2. Age restrictions: Drivers under the age of 21 are not allowed to drive commercial vehicles across state lines or transport hazardous materials.
3. Medical restrictions: Drivers with certain medical conditions may have restrictions on their license that limit the type of vehicle they can drive or the distance they can travel.
4. Time restrictions: Some drivers may have time restrictions on their license that limit the number of hours they can drive in a day or week.
It is important to be aware of any restrictions or limitations on your license and to comply with them to ensure your safety and that of others on the road.
1. Endorsement restrictions: If you have a Class A CDL with specific endorsements, such as a hazmat or tanker endorsement, you may be restricted to only driving vehicles that require those endorsements.
2. Age restrictions: Drivers under the age of 21 are not allowed to drive commercial vehicles across state lines or transport hazardous materials.
3. Medical restrictions: Drivers with certain medical conditions may have restrictions on their license that limit the type of vehicle they can drive or the distance they can travel.
4. Time restrictions: Some drivers may have time restrictions on their license that limit the number of hours they can drive in a day or week.
It is important to be aware of any restrictions or limitations on your license and to comply with them to ensure your safety and that of others on the road.
No, the Class A CDL written test in Texas is only available in English. The Texas Department of Public Safety (DPS) requires all applicants to take the written test in English, as it is the language of the road. This is to ensure that all drivers have a basic understanding of English, which is necessary for communication with law enforcement and other drivers on the road. However, if you need assistance with reading or understanding the test due to a disability or other condition, you may be able to request accommodations from the DPS. You should contact the DPS for more information on how to request accommodations.
Yes, if you have a disability that may affect your ability to take the Class A CDL written test, you may be able to request accommodations from the Texas Department of Public Safety (DPS). The DPS is committed to providing equal access to all applicants, including those with disabilities.
To request accommodations, you should contact the DPS and provide documentation of your disability and the specific accommodations you need. The DPS may require additional documentation or information to determine what accommodations are necessary. Some possible accommodations may include extended time for taking the test, a reader or scribe to assist you, or a sign language interpreter.
It is important to make your request for accommodations well in advance of your scheduled test date to allow sufficient time for the DPS to review your request and make arrangements. You should also follow up with the DPS to confirm that your accommodations will be provided.
To request accommodations, you should contact the DPS and provide documentation of your disability and the specific accommodations you need. The DPS may require additional documentation or information to determine what accommodations are necessary. Some possible accommodations may include extended time for taking the test, a reader or scribe to assist you, or a sign language interpreter.
It is important to make your request for accommodations well in advance of your scheduled test date to allow sufficient time for the DPS to review your request and make arrangements. You should also follow up with the DPS to confirm that your accommodations will be provided.
If you fail the Class A CDL written test in Texas, you can retake the test. However, you must wait at least one day before retaking the test. You will be required to pay another testing fee when you retake the test.
It is important to note that if you fail the test three times, you will be required to wait 30 days before you can take the test again. If you fail the test three times, it may be a good idea to review the material and consider obtaining additional study resources before attempting to take the test again.
If you pass the written test, you will be eligible to take the skills test. However, if you fail the skills test, you will need to retake both the written and skills tests.
It is important to note that if you fail the test three times, you will be required to wait 30 days before you can take the test again. If you fail the test three times, it may be a good idea to review the material and consider obtaining additional study resources before attempting to take the test again.
If you pass the written test, you will be eligible to take the skills test. However, if you fail the skills test, you will need to retake both the written and skills tests.
