Arizona (AZ) CDL Practice Tests
Use these five sample test questions to prepare for the Arizona (AZ) Commercial Driver's License (CDL) permit.
Question 1
What is the best way to figure out how many seconds of following distance you have?
Question 2
In which of the following circumstances should you make use of your vehicle's horn?
Question 3
Total stopping distance is a combination of...
Question 4
When performing a pre-trip inspection why is it a good idea to do it exactly the same way every time?
Question 5
Which of the following should you do when confronted by an aggressive driver?
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Three practice tests, namely the General Knowledge, Combination Vehicle, and Air Brakes CDL Practice Tests, play a pivotal role in preparation. Each test focuses on unique but essential areas of expertise vital for anyone looking to earn their commercial drivers license in the state of Arizona. Understanding the nuances of these tests is integral to obtaining a Arizona CDL, which requires adherence to specific state guidelines provided by the Arizona Department of Transportation (AzDOT). From age requirements to knowledge tests covering a spectrum of topics (found in the Arizona Commercial Driver’s Manual), prospective CDL holders must navigate through a structured process outlined by AzDOT. Additionally, incorporating Entry Level Driver Training (ELDT) and engaging in recommended training programs contribute to a comprehensive preparation strategy. By paying attention to detail and a commitment to safety, individuals can navigate the application process effectively and embark on a successful career in commercial driving.

General Knowledge, Combination Vehicle & Air Brakes CDL Practice Tests
There Are Three Unique Practice Tests Driver's Should Use When Preparing to Obtain Their Arizona Commercial Driver's License:
- General Knowledge CDL Practice Test
- Combination Vehicle CDL Practice Test
- Air Brakes CDL Practice Test
Preparing for the Arizona CDL (Manual and Practice Tests):
The CDL requirements for Arizona are based on guidelines provided by the Federal Motor Carrier Safety Administration. However, each state provides its own CDL testing questions through the state specific Department of Transportation (DOT). For truck drivers interested in studying for the state CDL exam, the Arizona Department of Transportation provides:
This manual covers all commercial motor vehicle driver license types including:
- Class A CDL
- Class B CDL
- Class C CDL
State Specific CDL Eligibility Requirements for Arizona:
Age Requirement:
You must be at least 18 years old to obtain a CDL for intrastate (within Arizona) driving.
You must be at least 21 years old for interstate (across state lines) driving.
Driver's License:
You need to have a valid Arizona driver's license.
Medical Certification:
You must pass a medical examination conducted by a certified medical examiner.
This medical certification is required to ensure that you are physically fit to operate a commercial motor vehicle.
Knowledge Test:
You are required to pass written knowledge tests that cover general CDL knowledge, air brakes (if applicable), and any endorsements you may need.
Depending on the type of driving you plan to do, you may need additional endorsements such as Hazardous Materials (H), Tank Vehicles (N), School Bus (S), and others.
Entry Level Driver Training (ELDT) Requirements:
Individuals falling into the following categories (listed below) must successfully complete Entry-Level Driver Training (ELDT) before becoming eligible for CDL skills testing. Entry Level Driver Training involves both theoretical instruction and behind-the-wheel (BTW) training at a facility listed on the Federal Motor Carrier Training Provider Registry.
This requirement pertains to:
- First-time CDL applicants
- Those applying for Class Upgrades (from Class B to Class A)
- Individuals seeking to add a Hazardous Materials Endorsement (H)
- Individuals looking to add a Passenger Endorsement (P)
- Those intending to add a School Bus Endorsement (S)
Complete and Pass a Criminal Background Check:
You may be subject to a criminal background check as part of the CDL application process.
Proof of Identity, Residency, and Citizenship:
You will need to provide documentation as proof of your identity, residency in Arizona, and U.S. citizenship or legal presence.
Application Process:
Visit your local Arizona Department of Transportation (AZDOT) office to apply for a CDL.
Complete the necessary application forms.
Pay the Required Fees:
- Commercial Learner Permit (CLP) (Class A or B, no endorsements): $25
- New Class A or B CDL (or Transfer from Another State): $25
- Class A or B Renewal: $15
This page was updated on: 7/15/2025