Back to North Carolina TestsNot North Carolina? Change state

North Carolina General Knowledge Test

You'll face questions about driving through the Blue Ridge Mountains and maintaining control on I-40's steep grades.

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 North Carolina CDL handbook and FMCSA regulations.

About the North Carolina General Knowledge Test

North Carolina's highways connect the mountains to the coast. You'll drive through dense fog in the Piedmont and handle sudden showers near the Outer Banks. Our freight routes carry everything from tobacco to textiles, so knowing your vehicle inside out is critical.

Interstate 40 cuts across the state with steep grades near Asheville. Interstate 85 runs through heavy traffic in the Charlotte metro area. You also have US-74 through the Sandhills and US-17 along the coast. Each route presents unique challenges.

Weather shifts fast here. Spring thunderstorms cause hydroplaning on I-95. Winter ice makes the mountain passes treacherous. You must adapt your driving to stay safe. That's why the General Knowledge test covers basic safety, vehicle controls, and on-road decision making.

This practice test mirrors the actual NC DMV exam. It includes 50 questions from the official North Carolina CDL Handbook. You'll get instant feedback on each answer. Use it to find your weak spots before test day.

North Carolina's commercial driving spans from the busy Atlantic port of Wilmington to the Appalachian mountain grades of the Blue Ridge and Great Smoky Mountains. I-40, I-85, and I-95 are the state's primary freight arteries, connecting the Research Triangle (Raleigh-Durham-Chapel Hill), Charlotte, Greensboro, and Winston-Salem. Our general knowledge practice test mirrors the official North Carolina DMV CDL written exam, covering every core subject the state tests.

The western mountains present the state's most demanding commercial driving. I-40 through the Pigeon River Gorge near the Tennessee border features steep grades, tight curves, and rock-slide risk. The Blue Ridge Parkway and US-19/23 corridors add winding two-lane mountain routes where engine braking, gear selection, and curve speed management are essential. The exam tests grade management and the use of runaway ramps because these are real hazards on western North Carolina highways.

The eastern coastal plain and the I-95 corridor carry heavy through-freight between the Northeast and Florida. The Port of Wilmington drives container and bulk cargo traffic on US-421 and I-40. Hurricane season brings the risk of flooding, downed trees, and evacuation traffic — the state's low-lying coastal highways are vulnerable to storm surge, making weather awareness and emergency routing part of the commercial driver's toolkit in North Carolina.

Topics Covered

✓Vehicle Inspection – North Carolina law requires you to check your brakes and lights before every trip. Mountain descents demand working brakes.
✓Air Brakes – Many NC trucks use air brakes. You'll need to know how they work and what to do if they fail on a grade.
✓Cargo Handling – North Carolina's ports and warehouses ship furniture from High Point and produce from the east. Secure your load properly.
✓Safe Driving Practices – Fog on the Blue Ridge Parkway and deer on rural roads test your hazard awareness daily.
✓Communications – Using signals and horn helps you merge on I-85's congested interchanges near Charlotte.
✓Emergency Maneuvers – Sudden tire blowouts on I-40's long straightaways require quick, correct reactions.

Study Tips

Don't just read the North Carolina CDL Handbook. Take notes on air brake components and double-check your state's special rules for school bus and hazmat endorsements. The DMV tests these details heavily.

Practice with our free test until you score 90% or higher. Review every wrong answer by looking it up in the handbook. Focus on questions about weight distribution and braking distance - those trip up many drivers.

Schedule your written test at a DMV office with a CDL section. Walk in or book online. Bring your learner's permit fee and proof of identity. The test is computerized, so get comfortable with multiple-choice formats.

North Carolina Specific Information

  • The North Carolina DMV offers CDL knowledge testing at 26 driver license offices statewide. You must schedule an appointment online at ncdmv.gov for most locations. Walk-ins are accepted at a few offices, but appointments save you time.

    The test fee is $15.00 for the CDL learner's permit knowledge test. This covers the General Knowledge exam. You can add endorsements for an additional $3.00 each. Payments are by credit card, debit card, or cash.

    Bring your valid North Carolina driver's license, Social Security card, and proof of residency. If you need a language interpreter, the DMV provides one at no extra cost. You'll also need to pass a vision screening before taking the test.

  • The North Carolina Division of Motor Vehicles (NCDMV) requires a knowledge test for all CDL classes; the general knowledge exam is the foundation for every commercial license.
  • I-40 through the Pigeon River Gorge near the Tennessee border has steep grades and tight curves — engine braking and low-gear descents are essential.
  • The Port of Wilmington generates container, bulk, and breakbulk freight traffic on I-40 and US-421.
  • Hurricane season can bring flooding, evacuation orders, and road closures on coastal highways — never drive through flooded roads.
  • Charlotte and the I-85 corridor through the Research Triangle carry high freight volume; blind-spot management and following distance are critical in heavy traffic.
  • The Blue Ridge and Great Smoky Mountain routes have frequent winding descents where speed management prevents off-tracking and rollover.

Frequently Asked Questions

How old do I need to be for a CDL in North Carolina?
You can get a CDL at 18 for intrastate driving. For interstate driving you need to be 21. Some endorsements like hazmat also require you to be 21.
Do I need an ELDT certificate in North Carolina?
Yes, starting February 2022, everyone getting a CDL for the first time must complete entry-level driver training (ELDT) from a registered provider. The DMV won't issue your CDL without it.
Can I take the CDL knowledge test in Spanish in North Carolina?
Yes, the NC DMV offers the test in Spanish, Vietnamese, Korean, Arabic, and many other languages. You can also request an oral interpreter for no additional fee.
How much does the CDL knowledge test cost in North Carolina?
The test fee is $15, which covers the General Knowledge test and any endorsements you take at the same time. That fee goes toward your learner's permit.
What's the passing score for the NC CDL General Knowledge test?
You need to score 80% or higher. That means you must answer at least 40 out of 50 questions correctly. If you fail, you can retake the test the next business day.
JM

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

Last verified: August 2026 · FMCSA-compliant content