VT CDL Practice Tests

• Test Format: Computer-based at Vermont DMV offices
• General Knowledge Test: 50 questions, need 80% to pass
• Permit Validity: 12 months (no renewals allowed)
• Waiting Period: 14 days before skills test
• Languages: English only
• Fees: Knowledge Test: $39 per test
• Endorsement Tests: $17 per endorsement
• Retesting: Wait until next business day to retest

The Vermont CDL knowledge test is to test your knowledge of commercial driving laws, safety practices and vehicle operation. You must pass this test to get a Commercial Learner's Permit (CLP) which you must have before taking the skills test for a full Commercial Driver's License. The computerized test covers topics such as safe driving techniques, federal regulations and Vermont state traffic laws. By passing this test you are showing you have the basic knowledge to operate commercial vehicles safely in Vermont and potentially out of state.

In Vermont you need to take the CDL knowledge test in the following situations:

• When applying for your first Commercial Learner's Permit
• When upgrading your CDL classification (such as from Class B to Class A)
• When adding new endorsements to your existing license
• When your CDL has been expired for over one year
• When transferring a CDL from another state and adding new endorsements

All applicants must take the General Knowledge test plus additional tests for specific endorsements such as Passenger (P), School Bus (S), Tank Vehicles (N), Hazardous Materials (H), or Doubles/Triples (T). These tests test your knowledge of the specific requirements for certain vehicle types or cargo classifications.

The CDL knowledge test is important to ensure public safety by verifying that commercial drivers have the knowledge to operate large vehicles responsibly. The test confirms your knowledge of safety protocols, regulatory requirements and emergency procedures before you get behind the wheel of a vehicle that can weigh up to 80,000 pounds. Commercial vehicles require special knowledge because of their size, weight and potential hazards they can present on the road. The knowledge test proves you are well prepared to handle the big responsibility that comes with operating these vehicles and can respond to various driving situations.

Vermont's CDL knowledge test combines Federal Motor Carrier Safety Administration (FMCSA) requirements with state specific regulations. This balanced approach ensures commercial drivers are qualified according to national standards and familiar with Vermont's roadways and requirements. Test content covers basic driving skills, air brake systems, combination vehicle operation and specialized endorsement knowledge. This comprehensive testing framework ensures your Vermont CDL will be recognized throughout the United States as long as you meet the age requirement (21+ for interstate commerce) and have the proper medical certification.

The Vermont CDL knowledge test has various sections with a specific number of questions:

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

All questions are multiple choice with 4 possible answers per question. The tests cover proper driving techniques, vehicle maintenance, safety regulations and specialized operational knowledge.

Sample question: When coupling a tractor to a semi-trailer, you should check that:

• The fifth wheel is positioned too far back
• There is visible space between the upper and lower fifth wheel
• The locking jaws are secured around the kingpin shank
• The apron is resting on top of the fifth wheel

Answer: C. The locking jaws are secured around the kingpin shank

To pass each Vermont CDL knowledge test you must score at least 80%. This means different passing scores for each test:

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

Each test is scored separately and you only need to retake the tests you didn't pass.

In Vermont the CDL knowledge test is only offered in English. This is because federal regulations require commercial drivers to have sufficient English proficiency to read and understand traffic signs, communicate with enforcement officials, complete required documentation and respond to directions. This language requirement ensures all CDL holders can communicate in emergency situations and understand important safety instructions while operating in the United States. There are no exceptions to this language requirement for CDL testing in Vermont even if you primarily speak other languages.

No, study aids are not allowed during Vermont CDL knowledge tests. You cannot use reference materials, notes, CDL manuals, electronic devices or calculators during the test. Test administrators monitor the testing area and using unauthorized materials will result in immediate test failure. All personal belongings including phones, notes, manuals and other items must be stored in designated areas before testing begins. The test is designed to test your knowledge without assistance, so you have the necessary knowledge to operate commercial vehicles safely. Using prohibited materials during testing could result in disqualification and may impact your ability to retest in the future.

Vermont does not have a time limit for CDL knowledge tests. Most applicants take the General Knowledge test in 60-90 minutes and endorsement tests in 30-45 minutes. The DMV allows sufficient time to think through each question without pressure. When scheduling your appointment plan accordingly if you want to take multiple tests in one session. For applicants with documented learning disabilities or special needs reasonable accommodations may be available upon request with proper documentation. Contact the DMV before your appointment to discuss accommodation options if needed.

Vermont has several CDL knowledge tests for different commercial driving needs:

• General Knowledge – Covers CDL basics and is required for everyone.
• Air Brakes – Required if your vehicle uses air brakes.
• Combination Vehicles – Needed for Class A vehicles with multiple units.
• Passenger (P) – Endorsement for carrying passengers.
• School Bus (S) – Endorsement for school bus drivers.
• Doubles/Triples (T) – Endorsement for pulling multiple trailers.
• Tank Vehicles (N) – Endorsement to haul tank loads.
• Hazardous Materials (H) – Endorsement for hauling dangerous materials.

Each test covers specific operation types or vehicle classes. You only need to take the tests relevant to the commercial driving you will be doing.

Sample question: When using air brakes what is "brake lag"?

• The time required for brakes to wear down
• The time needed for air to flow through the lines when the brake pedal is pressed
• The time it takes to move your foot from the accelerator to the brake pedal
• The time needed to set the parking brake

Answer: B. The time needed for air to flow through the lines when the brake pedal is pressed

General Knowledge: Vehicle inspection procedures, basic 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, emergency exits, passenger communication, accessibility requirements, 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.

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

To prepare for the Vermont CDL knowledge test:

• Study the Vermont CDL Manual sections relevant to your license class and endorsements
• Take our practice tests regularly to find knowledge gaps
• Create a study schedule over several weeks
• Make flashcards for technical terms, inspection procedures and regulations
• Spend extra time on air brakes and hazardous materials
• Review pre-trip inspection procedures until you can do them systematically
• Pay attention to Vermont specific regulations
• Study vehicle systems and components until you understand how they work together
• Familiarize yourself with all documentation requirements

Studying over time is much more effective than last minute cramming. Many test-takers underestimate the technical knowledge required especially for specialized endorsements like Hazmat or Air Brakes.

Yes! Our free Vermont specific practice tests are available to help you:

• Find knowledge gaps in your understanding of CDL requirements
• Build confidence through repeated practice
• Get used to the testing environment
• Track your progress
• Get immediate explanations for correct and incorrect answers
• Get familiar with the types of questions you'll see on test day

Our practice tests cover all CDL test categories: General Knowledge, Air Brakes, Combination Vehicles and all endorsements. They are updated regularly to reflect current testing standards and regulations. Using practice tests as part of your preparation has been shown to significantly improve first-attempt pass rates.

To maximize your chances of passing the Vermont CDL knowledge test:

• Start studying at least 2-3 weeks before your test date
• Focus on understanding concepts not memorizing isolated facts
• Use practice tests to find and focus on your weak areas
• Get plenty of rest the night before your test
• Eat a nutritious meal before testing to stay focused and energized
• Read each question completely before selecting an answer
• Pay attention to key words like "always," "never" or "except" that often indicate the correct answer
• When unsure, choose the answer that emphasizes safety
• Review all answers before submitting if the testing system allows
• Stay calm and focused during the testing process

Sample question: When should you activate your turn signal?

• Only when you see other vehicles nearby
• At least 100 feet before making your turn
• Immediately as you begin to turn
• Only when changing lanes on highways

Answer: B. At least 100 feet before making your turn

Our practice tests are similar in format and content to Vermont's official CDL knowledge tests, though the questions will be different. The practice tests mirror the style, difficulty and subject matter of the actual Vermont CDL knowledge tests. They help you get familiar with:

• Question formats and wording patterns
• Subject matter coverage and depth
• Time management during testing
• Critical thinking skills required for success

The most effective approach is to understand fundamental concepts not to memorize specific question-answer combinations as the official test draws from a large question bank and each test instance contains a unique set of questions.

CDL knowledge tests are administered at Vermont Department of Motor Vehicles (DMV) offices throughout the state. Not all DMV locations offer commercial testing so be sure to verify testing availability before making plans. The following locations offer CDL knowledge testing:

• Bennington
• Dummerston
• Montpelier
• Brattleboro
• Essex
• Middlebury
• Newport
• Saint Albans
• Saint Johnsbury
• South Burlington
• Springfield
• Rutland

Each testing location has the necessary equipment and staff for CDL testing. Contact the Vermont DMV or check their website to confirm which locations offer commercial testing.

Yes, appointments are highly recommended for CDL knowledge tests in Vermont. The DMV advises scheduling your test through:

• Online scheduling system at mydmv.vermont.gov
• Phone 802-828-2000

While some locations may accommodate walk-ins for knowledge testing, waiting times can be long and you may not be able to test that day if capacity has been reached. Making an appointment ensures you'll be tested at your preferred time and location without delay.

No, Vermont CDL knowledge tests must be taken in person at DMV offices. This requirement ensures proper identification, test security and integrity of the testing process. In-person testing is required by federal regulations and applies to all states, not just Vermont. This requirement prevents cheating and confirms the person receiving the CDL credential is the same individual who demonstrated the required knowledge. No online or remote testing is available for CDL knowledge tests in Vermont.

When you arrive for your Vermont CDL knowledge test bring:

Required documents:

• Valid Vermont driver's license
• Completed CDL application
• Social Security card or number
• Proof of citizenship or lawful permanent residency
• Medical Examiner's Certificate (DOT medical card) if applicable based on your self-certification category
• Payment for applicable fees ($39 per knowledge test)
• For Hazmat: Additional identification for TSA background check requirements

Additional items:

• Reading glasses if needed
• Appointment confirmation
• Knowledge of your medical history for certification purposes

All documents must be original or certified copies. Photocopies are not accepted. If you have questions about documentation requirements contact the Vermont DMV before your appointment to avoid delays.

Plan to arrive 15-20 minutes before your test time to allow for:

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

If you're a first-time applicant, consider arriving 30 minutes early to allow extra time for paperwork. Late arrivals may need to reschedule their tests. Traffic and parking at DMV locations can be unpredictable so allow extra time for delays. This will ensure you're relaxed and ready to go when your test starts.

After passing the required knowledge tests you'll receive a Commercial Learner's Permit (CLP) valid for 12 months from the issue date. Your CLP will have the following conditions:

• Must wait at least 14 days before taking the skills test
• Can only drive a commercial vehicle when accompanied by a qualified CDL holder in the passenger seat
• No passengers except instructors, examiners or other trainees
• Cannot transport hazardous materials requiring placards
• May have additional restrictions based on vehicle type and endorsements

The endorsements you passed will be noted on your CLP. Remember the CLP is a learning permit with significant restrictions compared to a full CDL.

Your Vermont Commercial Learner's Permit allows you to get behind the wheel of a commercial vehicle while supervised by a qualified CDL holder. This practice period is crucial for developing the skills needed to pass the 3 part CDL skills test. Use this time to:

• Get familiar with vehicle controls and operation
• Practice pre-trip inspection procedures
• Develop basic control skills (backing, parking, turning)
• Experience various road and traffic conditions
• Learn proper shifting techniques
• Practice safe driving procedures

This supervised practice is critical preparation for your skills test and future commercial driving career.

Vermont CDL knowledge test scores are valid for 12 months, the same as your CLP. If your CLP expires before you complete the skills test portion of the licensing process you'll need to retake all knowledge tests, even those you previously passed. Vermont does not offer score extensions so plan your testing timeline carefully and complete your skills test within the 12 month window. This ensures your knowledge is current when you get your full CDL.

If you don't pass one or more knowledge tests:

• You must wait until the next business day to retest
• You only need to retest the specific tests you failed
• Use our practice tests to focus on your weaknesses
• Review incorrect answers to understand the correct information
• Consider changing your study approach if you're struggling with certain topics

Vermont doesn't limit how many times you can take the knowledge tests, but repeated failures mean you may need more study time or a different way of learning the material.

Sample question: If you fail a section of the CDL knowledge test in Vermont, when can you retest?

• You must wait 30 days before retesting
• You can retest immediately at a different DMV location
• You must wait until the next business day
• You must retest all test sections, even those you passed

Answer: C. You must wait until the next business day to retest

After holding your CLP for at least 14 days and completing any required Entry-Level Driver Training, you can schedule your CDL skills test by:

• Paying a $29 skills test deposit
• Scheduling through mydmv.vermont.gov or by phone
• Ensuring your CLP is still valid and your medical certification is current
• Arranging for a test vehicle that matches your CDL class
• Choosing from available test dates and locations

The skills test has three parts: pre-trip inspection, basic vehicle control and on-road driving. Skills tests are conducted at different locations throughout Vermont than knowledge tests. Make sure you're well prepared for all three parts before scheduling your test to increase your chances of passing.