Knowledge Test Class B #2
Class B Driving Test | Arizona 2025 #2 Page 5 of 7
Train for FREE online with our Arizona class B 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 B 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 B requirements may vary from state to state.
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29 . Which of the following is an indication of standing water on the roadway?
Hydroplaning can occur in places where water collects on the road. Clear reflections, tire splashes, or rain drops on the road can indicate the presence of standing water.
30 . When traveling on a downgrade, your vehicle will:
Gravity causes a vehicle's speed to increase when traveling on a downgrade. Adjust your speed before reaching a downgrade.
31 . Which of the following is acceptable if found during a pre-trip inspection?
When inspecting your tires, verify that there is at least 4/32 of an inch of tread depth in every major groove on the front tires, and tread depth of at least 2/32 of an inch on the other tires. Tires on the same vehicle should all be the same size.
32 . What is the average driver’s reaction time?
The average driver has a reaction time between three-quarters of a second and one second. At 55 mph, this corresponds to a distance of 61 feet traveled.
33 . Which of the following is not an example of a distracted person who should concern motorists?
You should be cautious when you are near people who are not paying attention to the road. Drivers and pedestrians who are talking to someone may be distracted by the conversation and not fully paying attention to the road. Workers on or near the road may not be paying attention to traffic because they are focused on their work, and can themselves also be a distraction to drivers.
34 . When driving, how can you maintain alertness?
Strategies to avoid becoming fatigued while driving include keeping the cab cool inside by using the air conditioner or opening a window; avoiding heavy foods; and taking rest breaks about every two hours or 100 miles.
35 . Blocking a load:
Cargo should be blocked to prevent it from sliding around in transit. The shifting of weight in transit can make steering and handling difficult for the driver.
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.