Arizona General Knowledge Test
Know how to handle dust storms on I-10? That’s on the test.
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This is the first test you take for your AZ CDL. 50 questions, 60 minutes. You need 80% to pass.
Key Topics
- •Air Brakes
- •Vehicle Inspection
- •Extreme Weather Driving
About the Arizona General Knowledge Test
Topics Covered
- ✓Air brake systems — critical in Arizona because heavy trucks climb grades fast but overheat easily going down
- ✓Vehicle inspection — MVD checks that you know how to spot tire wear or brake fade before heading into summer heat
- ✓Safe driving in extreme weather — including monsoon season rains and dust storms that roll across I-40 without warning
- + 3 more topics
📘 Study Tips & State Info
Arizona examiners love asking about air system leaks and compressor operation. Know how much pressure loss is acceptable during a static leak test — don’t guess. Also expect questions about pre-trip inspections focused on tires, lights, and steering components worn by constant highway use.
They also pay attention to how well you understand stopping distance on wet pavement or loose gravel common around construction zones on Loop 101. Practice calculating total stopping distance under various speeds and load conditions.
Don’t skip the section on hazardous materials placarding either — even if you aren’t planning an endorsement now, basic hazmat awareness shows up regularly on the general knowledge exam.
In Arizona, you take the General Knowledge test at any MVD office offering CDL services. Popular ones include Phoenix Sky Harbor, Tucson DMV on Wetmore Road, and Surprise MVD near the Anthem area. Make an appointment online through azmvd.gov to avoid long waits.
Fees vary slightly depending on location, but generally, the knowledge test costs around $20. Bring proof of identity, Social Security number, and residency. If you’re over 18 but under 21, you’ll only qualify for intrastate driving unless you have a medical waiver.
A unique twist here: Arizona allows third-party testers like truck driving schools to proctor some exams, but most people still go through MVD directly. Either way, bring your Medical Examiner’s Certificate — no exceptions.
About the Arizona General Knowledge Test
If you’re getting your CDL in Arizona, the General Knowledge test is where it starts. It covers everything from air brakes to logbooks, and it’s not just about knowing the rules — it’s about applying them on real roads like I-10 through Phoenix or Highway 93 up to Laughlin.
The Arizona Motor Vehicle Division (MVD) uses this test to make sure you understand safe driving practices, vehicle inspection basics, and how to handle hazards specific to our state. Think high heat, sudden dust storms, and long stretches with no services.
You’ll see questions about backing maneuvers, speed management on downgrade ramps near Tucson, and what to do if your radiator starts steaming in the middle of the desert. They want drivers who can think fast and stay safe out there.
Topics Covered
Study Tips
Arizona examiners love asking about air system leaks and compressor operation. Know how much pressure loss is acceptable during a static leak test — don’t guess. Also expect questions about pre-trip inspections focused on tires, lights, and steering components worn by constant highway use.
They also pay attention to how well you understand stopping distance on wet pavement or loose gravel common around construction zones on Loop 101. Practice calculating total stopping distance under various speeds and load conditions.
Don’t skip the section on hazardous materials placarding either — even if you aren’t planning an endorsement now, basic hazmat awareness shows up regularly on the general knowledge exam.
Arizona Specific Information
In Arizona, you take the General Knowledge test at any MVD office offering CDL services. Popular ones include Phoenix Sky Harbor, Tucson DMV on Wetmore Road, and Surprise MVD near the Anthem area. Make an appointment online through azmvd.gov to avoid long waits.
Fees vary slightly depending on location, but generally, the knowledge test costs around $20. Bring proof of identity, Social Security number, and residency. If you’re over 18 but under 21, you’ll only qualify for intrastate driving unless you have a medical waiver.
A unique twist here: Arizona allows third-party testers like truck driving schools to proctor some exams, but most people still go through MVD directly. Either way, bring your Medical Examiner’s Certificate — no exceptions.