Free Minnesota CDL Practice Tests 2026

• License Classification: Class A, B, and C commercial driver's licenses
• Minimum Age: 18 for intrastate, 21 for interstate operations
• Test Fee: $2.50 for each endorsement test
• Required Documents: Valid Minnesota driver's license, DOT medical card, proof of citizenship/legal residence
• Endorsements Available: Hazardous Materials (H), Passenger (P), School Bus (S), Tank Vehicles (N), Doubles/Triples (T)
• Test Locations: Available at driver exam stations throughout Minnesota
• Manual: The Minnesota CDL Manual contains all information needed for CDL tests
• ESSENTIAL: As of February 7, 2022, entry-level driver training (ELDT) is required before taking the CDL skills test for first-time applicants, upgrading to a Class A or B, or adding passenger (P), school bus (S), or hazardous materials (H) endorsements.

The Minnesota CDL knowledge test evaluates your understanding of commercial driving regulations. You must pass this test to get a Commercial Learner's Permit (CLP), which is required before taking the skills test for a full CDL.

The test covers federal and Minnesota regulations, traffic laws, vehicle inspection procedures, and safe operating procedures. It's administered electronically at Minnesota DVS offices across the state.

You need to take the CDL knowledge test if you're getting your first Commercial Learner's Permit, adding a new endorsement to your existing CDL, upgrading your CDL class (like moving from Class B to Class A), reinstating an expired CDL (over one year), or transferring a CDL from another state with new endorsements.

All applicants must take the general knowledge test, with additional tests for specific endorsements like Passenger (P), School Bus (S), Tank Vehicles (N), Hazardous Materials (H), or Doubles/Triples (T).

The CDL knowledge test ensures commercial drivers have the necessary knowledge to operate commercial motor vehicles safely on public roads. It tests your understanding of regulations, safety practices, and emergency procedures that every commercial driver needs to know.

Commercial motor vehicles can cause significant damage in accidents due to their size and weight, so proper knowledge is crucial before operating these vehicles. The knowledge test is the first step in ensuring you're ready for the responsibility of commercial driving in Minnesota.

Minnesota's CDL knowledge test follows Federal Motor Carrier Safety Administration standards while incorporating state-specific regulations for local conditions. This ensures national consistency in commercial driver qualifications and addresses Minnesota-specific requirements.

Topics covered include general operating skills, air brake operations, combination vehicles, and specific endorsements that match federal standards. Your Minnesota CDL will be recognized throughout the United States so you can operate commercial motor vehicles across state lines (as long as you meet age and other requirements for interstate commerce).

Number of questions varies by test:

• General Knowledge: 50 questions
• Air Brakes: 25 questions
• Combination Vehicles: 20 questions
• Passenger Endorsement: 20 questions
• School Bus Endorsement: 20 questions
• Hazardous Materials Endorsement: 30 questions
• Tank Vehicles Endorsement: 20 questions
• Doubles/Triples Endorsement: 20 questions

All tests are multiple choice with 4 possible answers for each question. These tests thoroughly evaluate your knowledge of safety procedures, regulations, and technical knowledge of commercial motor vehicles.

Sample question: Before starting a trip with a commercial motor vehicle you should:

• Check only the tires and brakes
• Perform a complete pre-trip inspection
• Only check fluid levels if the check engine light is on
• Rely on the previous driver's inspection report

Answer: B. Perform a complete pre-trip inspection

You must answer 80% of questions correctly on each test:

• General Knowledge: 40/50
• Air Brakes: 20/25
• Combination Vehicles: 16/20
• Passenger Endorsement: 16/20
• School Bus Endorsement: 16/20
• Hazardous Materials Endorsement: 24/30
• Tank Vehicles Endorsement: 16/20
• Doubles/Triples Endorsement: 16/20

Each test is scored separately. If you fail one test but pass others, you only need to retake the failed test.

The CDL knowledge test in Minnesota is only available in English. Federal regulations require commercial drivers to read and speak English sufficiently to understand traffic signs, communicate with officials, complete records, and understand shipping documents.

This ensures all commercial drivers can safely navigate roadways, communicate with law enforcement and emergency services, and properly handle documentation. There are no exceptions to this language requirement for CDL testing in Minnesota.

No. You cannot use notes, electronic devices, reference materials, or calculators during the test. Testing areas are monitored, and using prohibited materials will result in test failure. All personal items must be stored in a designated area during testing, including:

• Cell phones and electronic devices
• Notes or cheat sheets
• CDL manuals
• Reference materials of any kind
• Calculators (unless authorized for certain questions)

Using prohibited materials during testing will result in immediate disqualification and may affect your ability to test again in the future.

There is no time limit, but most applicants complete the general knowledge test in 60-90 minutes. Most endorsement tests take 30-45 minutes. Plan accordingly if taking multiple tests in one visit. The Minnesota DVS gives you enough time to complete the tests without rushing. If you have documented learning disabilities or other special needs, accommodations may be available with proper documentation.

• General Knowledge – The base CDL exam for all applicants.
• Air Brakes – Needed to drive vehicles with air braking systems.
• Combination Vehicles – For towing combinations under Class A.
• Passenger (P) Endorsement – Required if you carry people commercially.
• School Bus (S) Endorsement – Required for student transport.
• Doubles/Triples (T) Endorsement – For tandem or triple trailer towing.
• Tank Vehicles (N) Endorsement – Required for liquid and gas tanks.
• Hazardous Materials (H) Endorsement – Needed for hazmat cargo.

Each test covers specific knowledge for that class of vehicle or type of operation. You only need to take the tests relevant to the type of commercial driving you plan to do.

Sample question: When operating a commercial motor vehicle with air brakes in winter conditions you should:

• Drain air tanks daily to remove moisture buildup
• Use the parking brake frequently to prevent freezing
• Accelerate quickly to prevent loss of traction
• Disconnect the air lines to improve brake responsiveness

Answer: A. Drain air tanks daily to remove moisture buildup

General Knowledge: Vehicle inspection procedures, basic vehicle control, shifting gears, space management, night driving, adverse weather conditions, emergency procedures, cargo handling, accident procedures, fires, fatigue awareness, and basic hazardous materials regulations.

Air Brakes: System components and function, dual air brake systems, inspecting air brakes, proper use in various conditions, emergency stops, brake system failures, and brake lag/fade.

Combination Vehicles: Coupling and uncoupling procedures, inspection points, handling characteristics, rollover prevention, jackknife avoidance, turning techniques, and backing procedures for combination vehicles.

Passenger (P): Passenger loading and unloading procedures, proper use of emergency exits, passenger communication, accessibility requirements, dealing with disruptive passengers, and railroad crossing requirements for passenger vehicles.

School Bus (S): Student loading and unloading procedures, emergency evacuation protocols, operating around schools, railroad crossing procedures, student management, danger zones around the bus, and special equipment.

Doubles/Triples (T): Coupling and uncoupling multiple trailers, handling characteristics during various maneuvers, inspection procedures, identifying and correcting handling problems, and operating in adverse conditions.

Tank Vehicle (N): Liquid surge and weight distribution effects on handling, baffled versus non-baffled tanks, loading/unloading procedures, and special braking for partially full tanks.

Hazardous Materials (H): Classification and identification of hazardous materials, proper documentation, loading/unloading procedures, operating rules, emergency response procedures, and security awareness.

To prepare for your Minnesota CDL knowledge tests:

• Study all relevant sections of the Minnesota CDL Manual for your license class and endorsements
• Take our free practice tests regularly to assess your knowledge
• Study over several weeks rather than cramming
• Make flashcards for difficult concepts and technical terms
• Focus extra time on challenging topics (air brakes, hazmat)
• Review the pre-trip inspection procedures thoroughly
• Pay attention to Minnesota-specific regulations and requirements

Remember consistent study over time is better than last-minute cramming. Many applicants underestimate the technical knowledge required, especially for specialized endorsements. When studying, focus on understanding vehicle systems and components until you understand how they work, and familiarize yourself with all required documents and procedures.

Yes! Our free Minnesota practice tests are available online that will help you:

• Identify knowledge gaps in your understanding
• Build confidence through repeated practice
• Simulate the actual test environment and format
• Track your progress as you improve
• Understand explanations for both correct and incorrect answers
• Get familiar with the types of questions asked on the actual test

Practice tests are available for all CDL test categories and are updated regularly to reflect current test standards. Using practice tests has been shown to increase first-time pass rates.

Follow these tips to increase your chances of passing:

• Start studying at least 2-3 weeks before your test date
• Understand concepts rather than memorize answers
• Take our practice tests to identify and focus on weak areas
• Get plenty of rest the night before your test
• Eat a good meal before testing to stay focused
• Read questions completely before answering
• Look for keywords like "always," "never," or "except" that can change a question's meaning
• Choose safety-oriented answers when unsure
• Review all answers before submitting if the test system allows
• Stay calm and focused throughout the test

Sample question: When backing a commercial motor vehicle with a trailer you should:

• Back quickly to minimize time in reverse
• Rely primarily on your mirrors instead of getting out to look
• Get help whenever possible and communicate with hand signals
• Always back to the right side regardless of the situation

Answer: C. Get help whenever possible and communicate with hand signals

Practice tests cover the same topics and format as the actual test, but questions are different. They are designed to mimic the style, difficulty, and content of the actual Minnesota CDL knowledge test. Practice tests help you get familiar with question formats and wording, content coverage and depth, time management during testing, and critical thinking skills needed for test success. Focus on understanding concepts rather than memorizing specific answers, as the actual test draws from a large question bank and each test is unique.

You can take the CDL knowledge test at designated Minnesota DVS exam stations that offer commercial licensing services. Not all DVS offices provide CDL testing, so check the DVS website or call ahead to confirm.

Test locations have special equipment and trained staff for CDL testing. Major test locations are in the Twin Cities metro area, Duluth, Rochester, St. Cloud, Mankato, and other cities throughout Minnesota.

Yes, appointments are recommended. Schedule through:

• The DVS website
• By calling your local exam station

Some locations may accept walk-ins for CDL testing, but wait times can be very long, and you may not be able to test that day if capacity is reached. Scheduling an appointment ensures you'll be tested at your preferred time and location.

No. All CDL knowledge tests must be taken in person at authorized DVS offices to ensure security, identity verification, and test integrity. This is a federal requirement that applies to all states, not just Minnesota. In-person testing prevents cheating and ensures the person receiving the CDL is the one who demonstrated the knowledge.

Required documents:

• Valid Minnesota driver's license
• Social Security card/number
• Proof of citizenship/legal residency (birth certificate, passport, permanent resident card, etc.)
• Proof of Minnesota residency (two documents showing your Minnesota address)
• Current DOT Medical Certificate (Form MCSA-5876)
• Completed CDL application
• Payment for applicable fees (cash, check, or credit card)
• For Hazardous Materials: Additional identification documents for security threat assessment

Other:

• Reading glasses if needed
• Appointment confirmation

Be aware that all documents must be original or certified copies. Photocopies are not accepted. If you're unsure about document requirements, contact the DVS before your appointment.

Arrive 15-20 minutes early to allow time for:

• Document verification
• Application processing
• Fee payment
• Getting settled before the test begins

If you arrive late, you may have to reschedule. First-time applicants should arrive 30 minutes early to allow time for paperwork processing. Traffic and parking at DVS offices can be unpredictable, so plan accordingly.

If you pass all required knowledge tests, you'll receive a Commercial Learner's Permit (CLP) valid for 180 days with these conditions:

• Must wait at least 14 days before taking the skills test
• Can only operate with a qualified CDL holder in the passenger seat
• No passengers except supervisors, trainees, or examiners
• No hazardous materials transport
• Other restrictions based on vehicle type/endorsements

Specific endorsements you passed tests for will be included on your CLP.

With your CLP, you can practice operating commercial motor vehicles while supervised before taking your skills test. This practice time is crucial to develop the skills needed to pass the behind-the-wheel test. Remember, you must always have a CDL holder with the proper class license and endorsements in the front seat with you when operating a commercial motor vehicle with a CLP.

Once you receive your CLP, you have 180 days to complete the skills test. The CLP can be renewed one time for an additional 180 days, provided the CLP is not valid for more than one year from the date of initial issuance. If your CLP expires before you complete the skills test, you'll need to retake all knowledge tests. There are no extensions beyond these timeframes, so plan to complete your skills test within the valid period to avoid having to retest.

If you fail a knowledge test:

• You can retake the test as soon as the next business day
• You only need to retake the specific tests you failed
• Use practice tests to focus on weak areas
• Review incorrect answers to understand why they were wrong
• Try different study methods if you're struggling with certain topics

There's no limit to how many times you can retake the tests, but a $10 fee is charged for third and subsequent knowledge tests after failing the first two.

Sample question: If you need to evacuate passengers from a commercial motor vehicle in an emergency, you should:

• Have passengers remain seated until emergency services arrive
• Direct passengers to an area at least 100 feet from the vehicle
• Keep passengers inside if there is inclement weather
• Save luggage before assisting passengers

Answer: B. Direct passengers to an area at least 100 feet from the vehicle

After you have your CLP and have held it for at least 14 days:

• Contact a Minnesota DVS exam station that offers CDL skills tests
• Make sure your CLP is valid and medical certificate is current
• Get a test vehicle that matches your CDL class
• Pay the skills test fee
• Choose a date and time from available slots at the DVS appointment scheduler

The skills test consists of a pre-trip inspection, basic vehicle control, and on-road driving demonstration. Make sure you're prepared for all three parts before scheduling. If you need to cancel or reschedule, do so at least 24 hours in advance to avoid a $20 no-show fee.