Back to Alabama TestsNot Alabama? Change state

Alabama General Knowledge Test

Master the rules for hauling logs on county roads and dodging thunderstorms on I-65.

140
Questions
80%
To Pass
60
Minutes

140 questions · 60 min time limit · 80% to pass

Opens in a practice window — choose your mode inside.

JM

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026

All questions sourced from the official Alabama CDL handbook and FMCSA regulations.

About the Alabama General Knowledge Test

Alabama's roads don't mess around. You'll face tight turns on I-20/59 near Birmingham, steep grades on I-59 through the Appalachians, and plenty of two-lane highways where logging trucks rule the middle. Our weather? Think summer thunderstorms that flood low spots on I-65, plus fog in the Tennessee Valley that cuts visibility to zero. This test covers what you need to stay safe hauling freight or livestock across the state.

The General Knowledge test is your first step toward any commercial license in Alabama. We built this practice exam from the official Alabama CDL manual. Every question matches the real thing. You'll cover vehicle inspection, basic control, shifting, and seeing hazards early. No fluff, just facts that keep you legal on Alabama blacktop.

We keep it short. Fifty questions, one hour limit, and an 80% passing score. Miss a few? We show you why your answer was wrong. Take it on your phone while waiting at the DMV. No sign-ups, no cost. Just pick your answer and learn.

Alabama requires a minimum of 80% to pass the real test. Get that score here first, then walk into your local ALEA exam station with confidence.

Alabama's commercial driving spans from the Port of Mobile on the Gulf Coast to the Appalachian foothills in the north. I-65 is the state's primary north-south freight artery, connecting Mobile to Birmingham and Huntsville, while I-20 and I-59 carry east-west freight. Our general knowledge practice test mirrors the official Alabama Law Enforcement Agency CDL written exam.

The Port of Mobile handles container, breakbulk, and bulk cargo, driving drayage traffic on I-10 and I-65. Northern Alabama adds the I-59 corridor through the Lookout Mountain area and the I-65 grades around Birmingham. Severe thunderstorms and tornado risk are signature Alabama hazards, and the exam tests weather awareness and defensive driving in rapidly changing conditions.

Topics Covered

✓Vehicle inspection – Alabama requires your rig to pass a pre-trip before you even start the engine.
✓Basic control maneuvers – Think tight turns on Mobile's docks and backing into a loading bay in Montgomery.
✓Shifting gears – Alabama's rolling hills mean you need smooth shifts to avoid stalling on upgrades.
✓Seeing hazards – Watch for deer on rural roads and sudden slowdowns in construction zones.
✓Speed management – Wet roads from Alabama's afternoon storms demand lower speeds.
✓Space management – Keep distance from log trucks that shed debris on I-65.

Study Tips

Read the Alabama CDL manual cover to cover – it's free online at the ALEA website. Focus on the sections about mountain driving and flatbed loads, because you'll see both here. Don't skip the air brake section; most General Knowledge questions pull from those rules.

Take our practice test at least twice. First time, learn what you got wrong. Second time, aim for 90% or higher. The real test uses the same wording, so pay attention to exact phrasing. If you can explain a rule to a buddy, you know it. Study in short bursts – 20 minutes a day beats cramming the night before.

Alabama Specific Information

  • You can take your CDL knowledge test at any ALEA driver license exam office. No appointment needed in most locations, but call ahead for the office near you. Prepare your ID, Social Security card, and proof of Alabama residency. The fee for the knowledge test is $5 per attempt, cash or card accepted.

    Don't bring your own vehicle – this is a written test, not a driving test. You'll use a touchscreen computer. Pass the General Knowledge test, and you get a CDL permit valid for 180 days. Use that time to practice with a qualified driver before your skills test.

    If you fail, you can retake it the next day. Alabama doesn't limit attempts, but each try costs another $5. Save money by studying hard the first time.

  • The Alabama Law Enforcement Agency (ALEA) requires a knowledge test for all CDL classes; the general knowledge exam is the foundation for every commercial license.
  • The Port of Mobile drives container and bulk drayage traffic on I-10 and I-65; height and hazmat routing may apply near the tunnels.
  • Northern Alabama's I-59 and I-65 corridors have rolling grades where gear selection and brake management matter.
  • Severe thunderstorms and tornadoes in spring and fall produce flash flooding and sudden crosswinds — the exam tests weather-related speed adjustment.

Frequently Asked Questions

Do I need an appointment for the Alabama CDL knowledge test?
Most ALEA offices don't require one, but it's smart to call ahead. Walk-ins get tested if time allows.
What happens if I fail the General Knowledge test in Alabama?
You can retake it the next business day. Each attempt costs $5, so keep studying between tries.
How many questions are on the Alabama CDL General Knowledge test?
Fifty questions. You need 40 correct to pass – that's 80%. The test covers the same material as our practice exam.
Does Alabama accept out-of-state CDL permits for the skills test?
No. You must hold an Alabama CDL permit issued by ALEA. Transfer your permit after proving residency.
What's the hardest part of the Alabama General Knowledge test?
Most students struggle with air brake questions and hazard perception. Study the manual's diagrams carefully.
JM

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026 · FMCSA-compliant content