Knowledge Test Class A #1
Class A Driving Test | Arizona 2025 #1 Page 7 of 7
Train for FREE online with our Arizona class A license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a AZ CDL class A permit in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class A requirements may vary from state to state.
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43 . When an engine is running, an acceptable oil pressure would be:
Operating oil pressure should be between 35 and 75 psi. Do not operate a vehicle if it has oil pressure that is low, dropping, or fluctuating.
44 . If involved in an accident, which of the following is not recommended?
When involved in an accident, you should protect the area, notify authorities, care for the injured, collect required information, and report the accident. You can lose your license for leaving the scene of an accident.
45 . An alcohol evaporator is especially important:
Some air brake systems contain an alcohol evaporator. This evaporator introduces alcohol into the system to help prevent ice from forming in cold weather.
46 . Black ice is:
Black ice is a layer of ice that is thin and clear enough for the road to be visible through it. The surface will look like a wet road. Always be alert to black ice if the road looks wet when the temperature is below freezing.
47 . If there is a cargo fire in a box trailer:
The doors of a trailer should be not be opened in the event of a cargo fire, especially if the cargo includes hazardous materials. Opening trailer doors would increase the fire's oxygen supply, potentially causing the fire to increase in size.
48 . Who is responsible for cargo that has been loaded onto a truck?
Even if they did not load or secure the cargo themselves, the driver of a vehicle is responsible for inspecting the cargo and ensuring that it is properly secured.
49 . If mirrors are dirty before starting a trip:
During a pre-trip inspection, be sure to check the mirrors and windshield for dirt and anything else that could interfere with your ability to see. Clean them as necessary.
50 . To get a CDL, you must pass:
To obtain a CDL, you must pass knowledge tests for the classes of vehicle you plan to operate.
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2025 Arizona | Frequently Asked Questions
A CDL Class B license in Arizona allows holders to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or towing a vehicle not exceeding 10,000 pounds GVWR. This includes buses, farm labor vehicles, and any vehicle that transports hazardous materials. The license requires passing a general knowledge test and any relevant endorsement tests.
A Class B CDL license in Arizona allows the operation of single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or towing a vehicle not exceeding 10,000 pounds GVWR. This includes straight trucks, large buses, segmented buses, farm labor vehicles, and any vehicles transporting hazardous materials.
To acquire a Class B CDL license in Arizona, you must be at least 18 years old (21 for interstate driving), possess a valid Arizona driver's license, pass a vision test, and pass the written knowledge test. You will also need to complete a commercial driver's license application and pay the necessary fees. Lastly, you must pass a road skills test in the type of vehicle you plan to drive.
In Arizona, you must be at least 18 years old to apply for a Class B Commercial Driver's License (CDL) for intrastate driving (within Arizona only). However, to drive interstate (across state lines) or to carry hazardous materials, you must be at least 21 years old.
Specific endorsements aren't necessary for a Class B CDL license but they can expand the types of vehicles you're allowed to operate. Endorsements include passenger (P), school bus (S), and hazardous materials (H). Each endorsement requires additional knowledge tests, and the hazardous materials endorsement requires a background check.
The Class B CDL skills assessment in Arizona includes three parts: a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving test. These assessments evaluate your ability to inspect your vehicle for safety, control the vehicle in various settings (like backing and turning), and drive safely in real-world traffic situations.
Yes, Class B CDL license holders can only drive vehicles designed to carry 24 passengers or more, including the driver, and single vehicles with a GVWR of 26,001 lbs or more. They cannot tow trailers more than 10,000 lbs. If they want to drive combination vehicles or tow larger trailers, they need a Class A CDL.
Yes, the Arizona Department of Transportation offers the written Class B CDL test in Spanish. However, federal regulations require that all CDL holders understand English well enough to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request test accommodations for the Class B CDL written exam in Arizona if you have a disability. The Arizona Department of Transportation (ADOT) provides reasonable testing accommodations under the Americans with Disabilities Act. Contact your local Motor Vehicle Division office in advance to arrange these accommodations.
Yes, you can retake the Class B CDL written test in Arizona if you fail on your first attempt. There is generally a waiting period between attempts, usually one day. You will also need to pay a retesting fee each time you retake the test. It's recommended to study thoroughly before retesting to increase your chances of passing.
