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 three possible answer choices. Test questions come from the Arizona 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.
1. A fatigued driver:
Fatigued drivers are slower to see or react to hazards than drivers who are not fatigued. Drivers are impaired in their ability to make critical decisions when they are driving drowsy.
2. A ____ allows a driver to gradually apply spring brakes.
A modulating control valve allows a driver to gradually apply spring brakes. In equipped vehicles, the valve is controlled by a lever located on the dashboard.
3. When driving, mirrors should be used:
It is essential that you are aware of what is surrounding your vehicle at all times. You should make a habit of regularly checking your mirrors while driving.
4. When the spring brakes are on, you should never:
Never push down the brake pedal while the spring brakes are activated. The combined force of springs and air pressure could damage the brakes.
5. Air storage tanks:
In an air brake system, the air storage tanks hold compressed air to be used by the brakes. The number and size of air tanks varies among vehicles.
6. The effects of alcohol are felt:
Alcohol impairment can begin with the first drink consumed. It is both illegal and dangerous to operate a motor vehicle while impaired by alcohol.
7. What is brake lag?
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
Frequently Asked Questions
To obtain a Class A CDL in Arizona, here are the steps you need to follow:
1. Obtain a Commercial Learner's Permit (CLP) by passing the written knowledge test for the Class A CDL.
2. Hold the CLP for at least 14 days before taking the skills test.
3. Schedule and pass the three-part skills test, which includes a pre-trip inspection, basic vehicle control, and on-road driving.
4. Provide proof of identity and residency in Arizona.
5. Pass a medical exam and obtain a medical examiner's certificate.
6. Pay the applicable fees.
It's important to note that Arizona also requires Class A CDL holders to meet certain federal and state regulations, such as maintaining a valid medical certificate, adhering to hours-of-service rules, and complying with hazardous materials transportation requirements if applicable.
Some examples of vehicles that you can operate with a Class A CDL in Arizona are:
- Tanker trucks
- Livestock carriers
- Flatbed trucks with trailers
- Double or triple trailer combinations
- Car carriers
- Dump trucks with trailers
It's important to note that some Class A CDL endorsements may be required for certain types of vehicles or cargo. For example, you may need a hazmat endorsement to transport hazardous materials or a tanker endorsement to operate tanker trucks. Be sure to check with the Arizona Department of Transportation or a qualified CDL training school for more information on specific endorsements.
1. Age: You must be at least 18 years old to drive within the state of Arizona and at least 21 years old to drive across state lines or transport hazardous materials.
2. Valid driver's license: You must have a valid non-commercial driver's license issued by the state of Arizona.
3. Medical requirements: You must pass a medical examination by a certified medical examiner and obtain a medical examiner's certificate to prove that you are physically fit to operate a commercial vehicle.
4. Written test: You must pass a written knowledge test specific to the Class A CDL, which covers topics such as vehicle inspection, control and operation, and safe driving practices.
5. Commercial Learner's Permit (CLP): You must obtain a Commercial Learner's Permit by passing the written knowledge test for the Class A CDL. To get a CLP, you will also need to provide proof of identity and residency in Arizona.
6. Skills test: You must pass a three-part skills test that includes a pre-trip inspection, basic vehicle control, and on-road driving.
7. Fees: You must pay the applicable fees for your license and any endorsements or restrictions you may need.
It's important to note that additional endorsements may be required for certain types of vehicles or cargo, such as hazardous materials or tanker trucks. Be sure to check with the Arizona Department of Transportation or a qualified CDL training school for more information on specific endorsements and requirements.
Drivers who are 21 years old or older may drive across state lines and transport hazardous materials, but they must also meet additional federal requirements, such as obtaining a Transportation Security Administration (TSA) clearance and passing a background check.
It's important to note that some companies may have their own age requirements for drivers, even if the driver meets the state and federal requirements. Be sure to check with your employer or prospective employers for any additional age restrictions.
1. Hazmat endorsement: This endorsement is required to transport hazardous materials, such as explosives, gases, flammable and combustible liquids and solids, and radioactive materials.
2. Tanker endorsement: This endorsement is required to transport liquid or gaseous materials in tank vehicles.
3. Double/triple trailer endorsement: This endorsement is required to operate double or triple trailer combinations.
4. Passenger endorsement: This endorsement is required to operate a vehicle designed to transport 16 or more passengers, including the driver.
5. School bus endorsement: This endorsement is required to operate a school bus.
To obtain an endorsement, you will need to pass an additional written knowledge test and meet any other requirements set forth by the Arizona Department of Transportation. It's important to note that some employers may require additional endorsements beyond what is legally required by the state or federal government. Be sure to check with your employer or prospective employers for any additional endorsements you may need.
1. Pre-trip inspection: You will be required to inspect the vehicle to make sure it is safe to operate. You will need to identify and explain any issues or potential issues with the vehicle's systems, such as brakes, tires, lights, and coupling devices.
2. Basic vehicle control test: You will be required to demonstrate your ability to control the vehicle in a controlled environment. This may include maneuvers such as straight-line backing, offset backing, parallel parking, and alley docking.
3. On-road driving test: You will be required to demonstrate your ability to safely operate the vehicle on public roads. This may include merging onto a highway, changing lanes, making turns, and obeying traffic signals and signs.
During the skills test, you will be evaluated on your ability to safely operate the vehicle and follow all traffic laws and regulations. You will also be scored on your performance during each part of the test. To pass the Class A CDL skills test in Arizona, you must achieve a passing score on each part of the test.
1. Age restrictions: To obtain a Class A CDL in Arizona, you must be at least 18 years old. However, drivers under the age of 21 are limited to intrastate driving only.
2. Endorsement restrictions: As mentioned earlier, certain endorsements may be required to operate certain types of vehicles or cargo. If you do not have the required endorsement, you will be restricted from operating that type of vehicle or cargo.
3. Vehicle type restrictions: Some Class A CDL holders may be restricted from operating certain types of vehicles, such as those with manual transmissions or air brakes.
4. Special conditions restrictions: Some drivers may be subject to special conditions due to medical or other factors that may affect their ability to operate a commercial vehicle safely.
It's important to note that violating any of these restrictions or limitations can result in penalties such as fines, license suspension, or even disqualification from driving a commercial vehicle. It's important for all commercial drivers to understand and comply with these restrictions and limitations at all times.
However, it's important to note that if you choose to take the test in a language other than English, you may be required to bring a translator with you to the testing center. The translator must be able to accurately translate the questions and your answers from English to the other language and vice versa.
Additionally, it's important to understand that while the written test may be available in multiple languages, the skills test is only available in English. This means that you must be able to communicate effectively in English during the skills test and follow instructions given by the examiner.
Overall, if you feel more comfortable taking the written test in a language other than English, you should do so. Just make sure you have a qualified translator with you if necessary and that you are prepared to communicate in English during the skills test.
To request accommodations, you will need to fill out a Request for Reasonable Accommodation form and submit it to ADOT. The form is available on the ADOT website or can be obtained by contacting ADOT directly.
Some examples of accommodations that may be available include:
- Providing a reader or scribe to assist with reading or writing the test
- Allowing extra time for the test
- Providing a separate testing room or special seating arrangements
- Providing assistive technology or other aids and services as needed
Once your request has been received, ADOT will review it and determine what accommodations can be provided based on your specific needs. It's important to submit your request as soon as possible so that ADOT has adequate time to make any necessary arrangements.
Overall, if you have a disability that would affect your ability to take the Class A CDL written test under standard conditions, you should not hesitate to request accommodations. ADOT is committed to providing equal access to all individuals and will work with you to ensure that you have an opportunity to obtain a CDL.
- First failure: You may retake the test after 1 business day.
- Second failure: You must wait 7 business days before retaking the test.
- Third and subsequent failures: You must wait 14 business days before retaking the test.
Note that these waiting periods apply to each individual test attempt, not to the overall number of times you have taken the test. For example, if you fail the test twice in a row, you must wait 7 business days before your second retake, even if you passed on your first attempt.
Additionally, each time you retake the test, you will be required to pay a fee. The fee for the Class A CDL written test in Arizona is currently $10.
It's important to note that while there is no limit to the number of times you may retake the written test, it's a good idea to study and prepare thoroughly before each attempt. If you continue to struggle with passing the test, consider seeking additional resources such as study materials or classes to help improve your knowledge and skills.