Free Nebraska DMV CDL — General Knowledge Practice Test 2026
The Nebraska CDL — General Knowledge knowledge test has ~50 questions, and you need ~40 correct (80%) to pass. Practice free with questions written from the official Nebraska driver handbook — every one has a clear explanation, and you can retake as often as you like with no sign-up.
Content reviewed against official driver handbooks · August 12, 2026
What's on the Nebraska written test
The Nebraska CDL — General Knowledge knowledge test has ~50 questions; you need ~40 correct (80%) to pass.
Based on the official Nebraska exam format — always confirm current details with your state DMV.
Practice by topic
Focus on one area at a time — each topic has its own set of Nebraska practice questions.
Learn the shapes, colors, and meanings of regulatory, warning, and guide signs — from stop and yield to construction and school-zone signs.
Speed limits, turning and signaling rules, headlight and seat-belt requirements, and the everyday laws every driver must follow.
How to read traffic signals, lane lines, and pavement markings — including yellow and white lines, arrows, and flashing lights.
Who goes first at intersections, four-way stops, roundabouts, and crosswalks, and how to yield to pedestrians and emergency vehicles.
Following distance, scanning, blind spots, using your lights, and the habits that prevent crashes and keep you in control.
Driving safely around motorcycles, bicycles, large trucks, pedestrians, and school buses — and knowing who has the right of way.
Blood alcohol limits, zero-tolerance and implied-consent laws, and how alcohol and drugs — legal or not — affect your driving.
Legal and illegal parking, colored curbs, distances from hydrants and crossings, and how to park safely on hills.
Choosing a safe speed, keeping a space cushion, adjusting for weather and traffic, and understanding stopping distance.
What to do when things go wrong — brake failure, tire blowouts, skids, and stalling on railroad tracks.
The point system, license suspension, provisional-license rules, insurance requirements, and other licensing basics.
How to pass the first time
- Read the official Nebraska driver handbook at least once before test day.
- Practice by topic to find your weak spots, then fix them.
- Take full-length practice tests until you pass comfortably every time.
- Read every explanation — understanding beats memorizing.
Nebraska CDL — General Knowledge test — frequently asked questions
How many questions are on the Nebraska CDL — General Knowledge test?
The Nebraska CDL — General Knowledge knowledge test has ~50 questions, and you need ~40 correct (80%) to pass. Our practice tests mirror that format.
How many questions can I miss on the Nebraska CDL — General Knowledge test?
You can miss up to ~10 of the ~50 questions and still pass — you need ~40 correct, which is 80%.
Can I retake the practice test?
Yes — practice as often as you like, completely free. The questions and answer choices are shuffled each time.
Can I take the Nebraska practice test in Spanish?
Yes. Every question here is available in English and Spanish — switch languages anytime. Many states also offer the real knowledge test in languages other than English; confirm what Nebraska offers with your DMV.
Can I practice on my phone?
Yes. The practice tests work in any mobile or desktop browser — no app or sign-up needed — so you can study anywhere.
Are these the real DMV test questions?
No. Our questions are original, written from the current official Nebraska driver handbook to match the real test's topics and style. We are not affiliated with any DMV or government agency.
What's the best way to study?
Read the Nebraska driver handbook, practice by topic to target weak areas, and finish with full-length tests until you consistently pass.
Other Nebraska practice tests
Take the CDL — General Knowledge test in another state
Every Nebraska question is written from the official Nebraska driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free
Nebraska CDL — General Knowledge questions with answers
20 sample questions from the Nebraska CDL — General Knowledge question bank — each with the correct answer, a short explanation, and the section of the official handbook it comes from.
Show all 20 questions with answers
1. A CMV driver who is not required to stop at every railroad crossing reaches one where the tracks are not clear and keeps going. How do the CDL rules treat this?
Correct answer: As a railroad-highway grade crossing violation that can cost the driver the CDL
One of the six listed crossing offenses covers drivers who do not always have to stop: failing to stop ahead of the crossing when the tracks are occupied. A first violation means losing the CDL for at least 60 days.
Source: Nebraska Commercial Driver's License Manual — Section 1.3.5, Railroad-highway Grade Crossing Violations
2. A Nebraska CDL is issued to a 19-year-old driver. When does that license expire?
Correct answer: On the holder's 21st birthday
Nebraska licenses issued to people under 21 expire on the holder's 21st birthday. The five-year term applies to those 21 or older.
Source: Nebraska Commercial Driver's License Manual — Nebraska Specifics, Expiration
3. Your license carries a corrective-lens requirement. What does the manual say about moving a vehicle without wearing them?
Correct answer: It is illegal
The manual says to wear required lenses even for short distances, because moving a vehicle without them is illegal when the license requires them. It also suggests keeping a spare set in the vehicle.
Source: Nebraska Commercial Driver's License Manual — Section 2.11.2, Driver Factors
4. A study ordered by Congress followed 80 long-haul truckers in the U.S. and Canada. How much sleep did they average per day?
Correct answer: Less than 5 hours
The study found the drivers were averaging under five hours of sleep a day, which the manual uses to explain why fatigue figures so heavily in truck crashes.
Source: Nebraska Commercial Driver's License Manual — Section 2.11.2, Driver Factors
5. Alongside 911, the manual lists a national hotline, 1-888-373-7888. What is that hotline for?
Correct answer: Victim services
The manual says to call 911 to report human trafficking and gives the national hotline for victim services.
Source: Nebraska Commercial Driver's License Manual — Everyday Heroes Needed
6. Who handles pre-enrollment and fingerprinting for the security threat assessment required for a Nebraska hazmat endorsement?
Correct answer: An outside agent working for TSA, not the DMV
The manual stresses that the threat assessment process, including pre-enrollment and fingerprinting, is run by a third-party agent of TSA and not by the DMV. A fee is charged.
Source: Nebraska Commercial Driver's License Manual — Nebraska Specifics, Security Threat Assessment Procedures
7. A placard identifies a material's primary or subsidiary hazard class. Where on the placard must the hazard class or division number appear?
Correct answer: In the lower corner
Placards used for the primary or subsidiary hazard class must show the class or division number in the lower corner.
Source: Nebraska Commercial Driver's License Manual — Section 9.3.11, Placard Tables
8. On Nebraska's vehicle inspection test, what is the result if the hydraulic brake check is not performed properly?
Correct answer: The whole Vehicle Inspection Test is failed automatically
Nebraska scores an improperly performed Air Brake Check or Hydraulic Brake Check as an automatic failure of the whole Vehicle Inspection Test.
Source: Nebraska Commercial Driver's License Manual — Nebraska Specifics, Preparing for Your Brake Check
9. The manual says to use your horn when it is needed. What caution does it add?
Correct answer: A needless blast can startle people and create danger
The horn lets others know you are there and can help avoid a crash, but the manual warns that it may startle people and be dangerous if used without need.
Source: Nebraska Commercial Driver's License Manual — Section 2.5.2, Communicating Your Presence
10. Your hydraulic brakes lose pressure and the pedal goes soft. Why might pumping the pedal help?
Correct answer: It can sometimes build enough hydraulic pressure to stop the vehicle
Along with downshifting and using the parking brake, the manual lists pumping the pedal, which sometimes produces enough pressure for a stop.
Source: Nebraska Commercial Driver's License Manual — Section 2.17.3, Brake Failure
11. You take a curve too fast and the tires keep their traction. What can happen?
Correct answer: The vehicle can roll over
Too much speed in a curve ends one of two ways: the tires lose traction and the vehicle skids off the road, or they hold and the vehicle rolls over.
Source: Nebraska Commercial Driver's License Manual — Section 2.6.3, Speed and Curves
12. On the stop/start maneuver you are about to pull back onto the road. Which direction does the manual single out when you check traffic?
Correct answer: The left
Before steering back into the lane you check traffic from all directions, and the manual adds 'especially to the left.'
Source: Nebraska Commercial Driver's License Manual — Section 13.1.6, Stop/Start
13. What is the longest seasonal period a Nebraska Restricted Commercial Driver's License (RCDL) may be valid for commercial driving?
Correct answer: 210 days in a row within any 12 months
The seasonal period on a Nebraska RCDL can run no longer than 210 days in a row within any 12 months. The applicant designates the period when applying.
Source: Nebraska Commercial Driver's License Manual — Nebraska Specifics, Restricted Commercial Driver's License (RCDL)
14. The Large Truck Crash Causation Study linked what share of large-truck crashes to CMV drivers who were externally distracted?
Correct answer: 8 percent
The study attributed 8 percent of large-truck crashes to external distraction and 2 percent to internal distraction.
Source: Nebraska Commercial Driver's License Manual — Section 2.9.1, The Distracted Driving Crash Problem
15. Since what date have state licensing agencies been required to remove commercial driving privileges from drivers with a 'prohibited' Clearinghouse status?
Correct answer: November 18, 2024
The manual gives November 18, 2024, as the start of the requirement. The downgrade lasts until the driver finishes the return-to-duty process.
Source: Nebraska Commercial Driver's License Manual — Nebraska Specifics, Drug & Alcohol Clearinghouse
16. Why does the manual list shoppers as a hazard?
Correct answer: They are often looking for stores or into store windows instead of watching traffic
Around shopping areas, people are frequently not watching traffic because their attention is on stores and window displays.
Source: Nebraska Commercial Driver's License Manual — Section 2.8.3, Drivers Who Are Hazards
17. Under federal rules, how strong must a cargo securement system be compared with the cargo it holds?
Correct answer: Its aggregate working load limit must be at least one-half of the cargo's weight
Federal regulations call for the combined working load limit of the tie-downs securing an article or group of articles to be at least half the weight of what is being secured.
Source: Nebraska Commercial Driver's License Manual — Section 3.3.2, Cargo Tie-down
18. On the CDL road test you have just driven under an overpass. What may the examiner ask you?
Correct answer: What the posted clearance or height was
After an overpass the examiner may ask for the posted clearance or height. After a bridge, the question may be about the posted weight limit.
Source: Nebraska Commercial Driver's License Manual — Section 13.1.9, Bridge/Overpass/Sign
19. You are taking the basic control skills test in a bus and walk to the back for a better view. How is that scored?
Correct answer: As a 'look'
Opening the door, leaving the seat, or on a bus walking to the back to see better is counted as a look.
Source: Nebraska Commercial Driver's License Manual — Section 12.1, Scoring
20. According to the manual, how much light may dirty headlights give?
Correct answer: Only half of what they should
Dirt can cut headlight output to half, which reduces how far you can see and makes your vehicle harder for others to notice.
Source: Nebraska Commercial Driver's License Manual — Section 2.11.4, Vehicle Factors