Arizona CDL Practice Test (AZ) 2026

4.9 out of 5 (122 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Setting out to secure a CDL in Arizona, the road starts here with our first Arizona CDL Practice Test. Tailored to build your foundational knowledge, the test includes 20 questions that tap into essential driving concepts, ensuring you're equipped to handle the demands of commercial driving. Achieving at least 16 correct responses will put you in good stead, akin to the actual DMV requirements. The AZ CDL practice test is structured with multiple-choice questions that cover a broad spectrum of critical topics. From pre-trip vehicle inspections and basic vehicle control to advanced skills like shifting gears, navigating hills, and communicating on the road, this Arizona practice test is thorough. It also reinforces vital safety protocols including speed control, and drug and alcohol rules to uphold responsible driving practices. Each attempt at the DMV CDL test rearranges the set of questions, thanks to a randomized selection process. This design is intentional, preventing rote learning and promoting a deep understanding of the material. The content is crafted and vetted by seasoned driving instructors, bringing years of expertise and successful teaching experience to the table. Their input ensures that the questions are not only accurate but also effective in preparing candidates for any CDL class they pursue.
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Sample Arizona CDL Test Questions - General Knowledge

Question 1

If your commercial vehicle catches fire, should you pull into a fuel or service station because firefighting equipment may be available?

  1. A True
  2. B False

Correct answer: B – False

The Arizona CDL manual directs you to move the vehicle off the road and stop in an open area away from buildings, trees, brush, other vehicles, and other combustible surroundings. Do not pull into a service station. Notify emergency services and provide your location.

Source: Arizona Commercial Driver License Manual — § 2.21.3, “Fire Fighting”

Question 2

Before backing with a helper, which hand signal must both of you agree on?

  1. A Stop
  2. B Continue straight
  3. C Turn left
  4. D Turn right

Correct answer: A – Stop

The helper should stand near the rear of the vehicle in a location where the driver can see them. Before backing begins, the driver and helper should establish a set of hand signals they both understand. That set must include an agreed signal for “stop.”

Source: Arizona Commercial Driver License Manual — § 2.2.4, “Backing Safely”

Question 3

At a railroad crossing, the red lights begin flashing and the gate starts lowering. What should you do?

  1. A Accelerate across before the train arrives
  2. B Continue if the tracks appear clear
  3. C Drive around the gate if there is enough room
  4. D Stop and wait until the gate rises and the lights stop flashing

Correct answer: D – Stop and wait until the gate rises and the lights stop flashing

The Arizona CDL manual instructs drivers to stop when railroad-crossing lights begin flashing and before the gate lowers across the lane. Remain stopped until the gate rises and the lights have stopped flashing. Proceed only after confirming that it is safe.

Source: Arizona Commercial Driver License Manual — § 2.15.2, “Warning Signs and Devices”

Question 4

Which item is not listed as standard emergency equipment or a warning-device option for a covered truck, truck tractor, or bus?

  1. A A properly rated fire extinguisher
  2. B Three compliant reflective warning triangles
  3. C A first-aid kit
  4. D At least six fusees as a warning-device option

Correct answer: C – A first-aid kit

Federal CMV rules require a qualifying fire extinguisher and an approved stopped-vehicle warning option, such as three bidirectional reflective triangles or at least six fusees. A first-aid kit is not included in that standard equipment list. This question concerns the equipment specified in 49 CFR § 393.95.

Source: 49 CFR § 393.95(a), (f) — Emergency equipment on all power units

Question 5

How should you select your speed when operating a commercial vehicle at night?

  1. A Depend on caffeine if you begin feeling tired
  2. B Drive faster to reduce your time on the road
  3. C Use fresh air as a substitute for rest
  4. D Drive slowly enough to stop within the distance illuminated by your headlights

Correct answer: D – Drive slowly enough to stop within the distance illuminated by your headlights

Headlights provide much less sight distance than daylight. Adjust your speed so the vehicle’s stopping distance remains within the area illuminated by the headlights. Otherwise, a hazard may become visible too late for you to stop safely.

Source: Arizona Commercial Driver License Manual — § 2.11.4, “Vehicle Factors”

Question 6

If reflective triangles are used as your stopped-vehicle warning devices, how many must be carried?

  1. A Two
  2. B Four
  3. C One
  4. D Three

Correct answer: D – Three

Federal emergency-equipment rules specify three bidirectional emergency reflective triangles when triangles are selected as the warning-device option. The triangles must conform to the applicable federal safety standard. Other warning-device options exist, but the required number of reflective triangles is three.

Source: 49 CFR § 393.95(f)(1) — Emergency equipment on all power units

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