Back to Arkansas Tests Not Arkansas? Change state

Arkansas Air Brakes Test

You'll face the same steep grades on I-40 through the Ozarks that trip up drivers who don't know their air brakes cold.

118

Questions

80%

To Pass

Minutes

118 questions · 30 min time limit · 80% to pass

Opens in a practice window — choose your mode inside.

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

Last verified: August 2026

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

About the Arkansas Air Brakes Test

Arkansas roads aren’t flat. From the Arkansas River Valley to the Ozark Mountains, your rig’s air brakes take a beating. Long descents on I-40 near the Oklahoma border can overheat a system fast. You need to know brake lag, emergency braking, and how to avoid a runaway.

This practice test mirrors the actual Arkansas CDL Air Brakes exam. You’ll get 25 questions drawn from the latest Arkansas CDL manual. We don’t throw in generic questions — we focus on the stuff that trips up drivers in Little Rock, Fayetteville, and Jonesboro.

Think about hauling lumber or poultry along Highway 71. One brake adjustment mistake and you’re in trouble. Our questions cover real-world scenarios you’ll face on Arkansas interstates and two-lane highways. We’ve trained hundreds of drivers here — we know the weak spots.

Topics Covered

✓Brake lag and stopping distance — critical on icy Interstate 30 near Texarkana

✓Dual air brake systems — you’ll explain this on your skills test in Little Rock

✓Spring brake application — know how to park safely on rolling hills in the Delta

✓Air compressor and governor — failures happen on long hauls to Jonesboro

✓Low air pressure warnings — the buzzer saves lives on steep Ozark descents

✓Trailer brake systems — vital when pulling grain trailers through the Arkansas River Valley

Study Tips

Read the Arkansas CDL Manual’s air brake section at least twice. The state’s test pulls directly from it. Practice the “pre-trip” inspection steps out loud — you’ll do that for the examiner in Fort Smith. Don’t skim the emergency procedures; they’re the most commonly failed part.

Use our practice tests repeatedly until you score 90% or better. Arkansas DMV offices let you take the written test first, then schedule your skills exam. You have three tries on the written before you pay the fee again. Use a timer — the real test gives you 30 minutes, and most students finish in 15. Don’t rush, but don’t stall either.

Arkansas Specific Information

Arkansas CDL written tests happen at any full-service DMV office. You don’t need an appointment for the air brakes knowledge test — walk in during business hours. Bring your valid driver’s license, Social Security card, and proof of Arkansas residency. The fee is $10 for the knowledge test (all endorsements included).

Skills tests require an appointment at one of the three testing sites: Little Rock, Springdale, or Jonesboro. Wait times run 2-3 weeks in summer. You can’t use your own vehicle for the air brakes portion — the DMV provides a test truck. Arrive 30 minutes early. If you fail, you must wait 48 hours to retake the skills test.

Frequently Asked Questions

Do I need an air brakes endorsement for a Class B CDL in Arkansas?

Only if your vehicle has air brakes. If you drive a straight truck with air-over-hydraulic brakes, you still need the endorsement. Check your truck’s brake type before you schedule the test.

What’s the passing score for the Arkansas Air Brakes Test?

You need 80% — that’s 20 out of 25 correct. The test uses multiple-choice questions only. No trick questions, but some answers are very close. Read each option twice.

Can I take the air brakes test online in Arkansas?

No. Arkansas DMV doesn’t offer any CDL knowledge tests online. You have to go to a DMV office in person. That’s the same for every endorsement — air brakes, hazmat, tankers, all of them.

How long do I have to complete the 25-question air brakes test?

You get 30 minutes. Most people finish in 15-20 minutes. If you run out of time, the system stops you and scores what you answered. We recommend answering all questions even if you guess — blank answers count wrong.

Does the Arkansas air brakes test cover the spring brake system?

Yes, heavily. You’ll be asked how spring brakes work, when they apply automatically, and how to release them. Many drivers fail because they can’t describe the spring brake parking procedure properly.

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

Last verified: August 2026 · FMCSA-compliant content