IN CDL Practice Tests

General Knowledge (150 questions)

HazMat (30 questions)

Passenger Vehicles (20 questions)

School Bus (20 questions)

Air Brakes (25 questions)

Combination Vehicles (24 questions)

Double/Triple Trailers (20 questions)

Tanker Vehicles (30 questions)

Pre-Trip Inspection (9 questions)

Indiana CDL Knowledge Test FAQ

Essential Facts at a Glance

What are the key details I need to know about the Indiana CDL knowledge test?

  • Test Format: Computer-based at Indiana BMV offices
  • General Knowledge Test: 50 questions, need 80% to pass
  • Permit Validity: 180 days
  • Waiting Period: 14 days before skills test
  • Languages: English only
  • Fees: $25 (Class A/B), $12.50 (Class C)
  • Endorsement Fees: $10 for most endorsements (Hazmat, Tank, etc.)
  • Retesting: Wait until next business day to retest

What is the Indiana CDL knowledge test?

The Indiana CDL knowledge examination is your first step toward proving you understand commercial driving regulations. You'll need to pass this examination to get your Commercial Learner's Permit (CLP), which is required before taking the skills examination for a full CDL. The examination covers vehicle operation, safety regulations, traffic laws and safe operating procedures. You'll take it on a computer at BMV offices throughout Indiana. Questions include both federal regulations and Indiana-specific rules to ensure you're prepared for operating commercial motor vehicles both in Indiana and across state lines.

Who needs to take the CDL knowledge test in Indiana?

You'll need to take the examination if you're in any of these situations:

  • Getting your first CLP
  • Adding a new endorsement
  • Upgrading your CDL class (like moving from Class B to Class A)
  • Reinstating an expired CDL (over one year)
  • Transferring a CDL from another state with new endorsements

All applicants must take the general knowledge examination plus additional examinations for specific endorsements like Passenger (P), School Bus (S), Tank Vehicles (N), Hazmat (H), or Doubles/Triples (T). Each endorsement has its own examination tailored to that specific vehicle or cargo type.

Why is the CDL knowledge test important?

The examination ensures you have the knowledge to safely operate commercial motor vehicles. As a CDL applicant, you'll show your understanding of regulations, safety practices, technical knowledge and emergency procedures. This verification helps maintain safety standards and reduces accident risks on public roads. Commercial motor vehicles can cause significant damage in accidents due to their size and weight, so proper knowledge and training is essential before you start operating them. This examination is your first step towards proving you're ready for the responsibility of commercial driving.

How does the Indiana test match federal requirements?

The examination follows Federal Motor Carrier Safety Administration standards while incorporating Indiana-specific regulations. This provides national consistency in commercial driver qualifications while addressing Indiana-specific requirements. Topics covered include general operating skills, air brake operations, combination vehicles and specific endorsements. Your Indiana CDL will be recognized throughout the United States, allowing you to operate commercial motor vehicles across state lines (as long as you meet age and other prerequisites for interstate commerce).

How many questions are on the Indiana CDL knowledge test?

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

The questions are multiple choice with 4 possible answers for each. These examinations are designed to thoroughly test your knowledge of safety procedures, regulations and technical aspects of commercial motor vehicles.

Sample question: When checking your trailer connection you should make sure that:

  • The fifth wheel is tilted upward
  • There is no space between the upper and lower fifth wheel
  • The kingpin is bent
  • The apron is sitting on top of the fifth wheel

Answer: B. There is no space between the upper and lower fifth wheel

What score do I need to pass?

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

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

Each examination is scored separately and you must pass each one individually. If you fail one examination but pass others, you only need to retake the failed examination.

What languages can I take the test in?

The examination is only 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 standard 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 Indiana.

Can I use study aids during the test?

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

  • Cell phones and electronic devices
  • Notes or cheat sheets
  • Commercial Driver License manuals
  • Reference materials of any kind
  • Calculators (unless specifically 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.

How long do I have to complete the test?

There's no time limit but most applicants complete the general knowledge examination in 60-90 minutes. Most endorsement examinations take 30-45 minutes each. When planning your visit, plan accordingly if you're taking multiple examinations in one day. The BMV provides sufficient time to complete the examinations without rushing. If you have documented learning disabilities or other special needs, accommodations may be available with proper documentation.

What types of knowledge tests are available?

  • General Knowledge (required for all CDLs)
  • Air Brakes (for commercial motor vehicles with air brakes)
  • Combination Vehicles (for Class A licenses; covers driving combination vehicles like tractor-trailers)
  • Passenger (P) Endorsement (for buses and other vehicles that carry passengers)
  • School Bus (S) Endorsement (required to operate a school bus; must also have the P endorsement)
  • Doubles/Triples (T) Endorsement (for pulling double or triple trailers)
  • Tank Vehicle (N) Endorsement (for transporting liquid or gas in a tank)
  • Hazmat (H) Endorsement (for transporting hazardous materials; requires TSA background check)

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

Sample question: When operating with air brakes what is brake lag?

  • Time for brakes to wear out
  • Time for air to flow through lines when brake pedal is pressed
  • Time to move foot from accelerator to brake
  • Time to pull parking brake

Answer: B. Time for air to flow through lines when brake pedal is pressed

What topics are covered on each CDL knowledge test?

General Knowledge: Vehicle inspection procedures, basic control, shifting gears, space management, night operating, 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 prerequisites, dealing with disruptive passengers, and railroad crossing prerequisites 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, operating rules, emergency response procedures, and security awareness.

How do I prepare for the Indiana CDL knowledge test?

Start by studying all relevant sections of Indiana CDL Manual for your license class and endorsements. This will ensure you're well-prepared for the examination day. Take our free practice tests to identify areas where you need more study. Create a study schedule spanning several weeks rather than cramming at the last minute.

Make flashcards for difficult concepts and technical terms that you can review regularly. Focus extra time on challenging topics like air brakes and hazmat regulations. Thoroughly review the pre-trip inspection procedures, which are often challenging for new applicants. Pay attention to Indiana-specific regulations and prerequisites that may differ from other states.

Study vehicle systems and components until you understand how they function, not just what they're called. Consistent study over time is the key to success, not last-minute cramming.

Are practice tests available?

Yes! Our free Indiana practice tests will help you prepare effectively. These practice tests will:

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

Our practice tests cover all CDL examination categories and are updated regularly to reflect current testing standards. As a result of using these practice tests, many applicants see increased first-attempt pass rates.

How do I pass the CDL knowledge test?

Start studying at least 2-3 weeks before your examination date to ensure you're well-prepared. Remember that understanding concepts is more effective than simply memorizing answers. Take our practice tests to identify and focus on weak areas that need additional study. Get enough rest the night before your examination and eat a good meal before testing to maintain concentration.

Read questions completely before selecting answers, paying attention to keywords like "always," "never," or "except" that can change a question's meaning. Choose safety-oriented answers when unsure, as safety is a primary focus of the CDL program. If the testing system allows, review all answers before submitting. Staying calm and focused throughout the examination will help you perform your best.

Sample question: When should you use turn signals?

  • Only when other vehicles are present
  • At least 100 feet before turning
  • Just as you begin to turn
  • Only when changing lanes

Answer: B. At least 100 feet before turning

How similar are practice tests to the actual test?

Our practice tests cover the same topics and format as the actual examination, though specific questions will differ. We design our questions to reflect the style, difficulty level, and content of the actual Indiana CDL knowledge examination. The practice tests help you become familiar with:

  • Question formats and wording styles
  • Content coverage and depth
  • Time management during testing
  • Critical thinking skills needed for examination success

Focus on understanding concepts rather than memorizing specific answers, as the actual examination draws from a large question bank and each examination is unique.

Where do I take the CDL knowledge test?

You'll take the examination at designated Indiana BMV offices that offer commercial licensing services. Not all BMV offices provide CDL testing, so check the BMV website or call ahead to confirm. Testing locations have special equipment and trained staff for CDL testing. Major testing locations include Indianapolis, Fort Wayne, South Bend, Evansville, and other cities throughout Indiana.

Do I need an appointment?

Yes, appointments are recommended for CDL testing. You can schedule through:

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.

Can I take the test online?

No, all CDL knowledge examinations must be taken in person at authorized BMV offices. This is a federal prerequisite that applies to all states, not just Indiana. The in-person testing ensures security, identity verification, and examination integrity. This approach prevents cheating and ensures the person receiving the CDL is the one who demonstrated the knowledge.

What do I need to bring to the test?

You'll need to bring several required documents:

  • Valid Indiana driver's license
  • Social Security card/number
  • Proof of citizenship/legal residency (birth certificate, passport, permanent resident card, etc.)
  • Proof of Indiana residency (two documents showing your Indiana 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 helpful items:

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

All documents must be original or certified copies. Photocopies are not accepted. If you're unsure about document requirements, contact the Indiana BMV before your appointment.

How early should I arrive?

Arrive 15-20 minutes early to allow time for document verification, application processing, fee payment, and getting settled before the test. If you're late, you may have to reschedule. First-time applicants should arrive 30 minutes early to allow time for paperwork processing. Traffic and parking at BMV offices can be unpredictable, so plan accordingly.

What if I pass?

You'll get a Commercial Learner's Permit (CLP) valid for 180 days with specific restrictions. You must wait at least 14 days before taking the skills test. You can only drive commercial motor vehicles with a qualified CDL holder in the passenger seat. You cannot transport passengers except supervisors, trainees or examiners, and you cannot transport hazardous materials.

Your CLP will have other restrictions based on vehicle type/endorsements, and the specific endorsements you passed will be listed on your CLP.

What can I do with my CLP?

You can practice driving commercial motor vehicles while supervised before taking your skills test. This practice time is important to develop the skills needed to pass the behind-the-wheel test. You should use this time to get comfortable with the type of vehicle you'll be driving with your CDL.

How long are test scores valid?

Test scores are valid for 180 days, same as your CLP. If your CLP expires before you take the skills test, you'll have to retake all knowledge tests. There are no extensions on score validity, so plan to take your skills test within the 180-day window to avoid having to retest. This way your knowledge will be current when you get your full CDL.

IMPORTANT: Applicants can only be issued a CLP for a total of 18 months in any 24-month period.

What if I fail?

If you fail an exam, you'll need to wait until the next business day to retest. When retesting, focus on the sections you failed, not everything. Take our practice tests to identify and strengthen your weak areas. Review the incorrect answers to understand why they were incorrect.

If you're struggling with certain topics, try studying with different methods. For example, flashcards, study groups, or video tutorials might help if reading the manual isn't working for you. There's no limit to how many times you can retest, but repeated failures may mean you need more preparation.

Sample question: What happens if you fail a section of the exam?

  • Wait 30 days before retesting
  • Retest immediately at another location
  • Wait until the next business day to retest
  • Retest all sections even those passed

Answer: C. Wait until the next business day to retest

How do I schedule the skills test after passing?

After holding your CLP for at least 14 days, you can schedule your skills exam. Go to MyBMV.com or call 888-692-6841 to make an appointment. Make sure your CLP is valid and your medical certificate is current before scheduling. Also arrange for a test vehicle that matches your CDL class.

You'll need to pay the skills exam fee ($25 for Class A/B, $12.50 for Class C) and choose a date and time from available slots. Skills exams are held at different locations than knowledge exams. The skills exam consists of a pre-trip inspection, basic vehicle control, and on-road operating demonstration, so make sure you're prepared for all three before scheduling.

IMPORTANT: Before taking the CDL skills exam, you must complete Entry-Level Driver Training with a Federal Motor Carrier Safety Administration's Training Provider and watch an instructional video on how to recognize, prevent, and report human trafficking. More information is available on the Indiana BMV website.

Indiana’s industries are primarily composed of pharmaceuticals, medical devices, automobiles, chemical products, rubber, coal products, and factory machinery. All of these manufactured goods must be transported to the rest of the country, creating numerous opportunities for CDL holders to start lucrative careers in the Hoosier State. Truckers in Indiana often use Route 70 through Indianapolis and Route 69 from Evansville to Fort Wayne.

But before you can get your trucking career started, you first need to pass the IN CDL exam and earn your Indiana Commercial Driver’s License (CDL). A CDL is a required certification for all commercial drivers and is obtained by passing both a written test and an on-road skills test.

Our free 2026 Indiana CDL practice tests are designed to help you ace the official IN CDL exam.

Why choose our IN CDL practice tests?

  • Questions based on the latest 2026 Indiana CDL manual
  • Covers all CDL classes and endorsements
  • Instant feedback to help you master the material

The written knowledge test can be quite challenging, which is why we’ve developed a series of powerful practice tests to help you quickly identify any gaps in your knowledge before sitting for the exam. Track your progress and gain the confidence you need to succeed. Don’t let the exam stand between you and your new career—take a practice test now and begin your journey toward becoming an Indiana commercial truck driver!

IN CDL Manuals

The latest official IN CDL driver's manuals