Passing the Indiana CDL exam takes more than reading the manual once. The exam has two parts: a written knowledge test and an on-road skills test. Both require consistent preparation. Students who understand the format, study the right material, and get enough behind-the-wheel time give themselves the best chance of passing on the first attempt.
This guide breaks down what the Indiana CDL exam covers and what students can do to prepare for each part.
It’s important to note that you need to have your Commercial Learner’s Permit (CLP) for at least 14 days before you’re able to take the CDL exam
What the Indiana CDL Exam Covers
The Indiana CDL exam is divided into two sections: the knowledge test and the skills test.
Knowledge Test
The general knowledge test consists of 50 multiple-choice questions based on the Indiana CDL Manual. Students must answer at least 40 questions correctly to pass, which equals an 80% score. The exam is taken on a computer at Indiana BMV offices. Topics include:
- Driving safely
- Transporting cargo safely
- Vehicle inspection procedures
- Air brakes (required if the vehicle has air brakes)
- Combination vehicles (required for Class A)
Students applying for endorsements, such as Hazardous Materials, Tanker, or Passenger, must also pass additional knowledge tests for each endorsement.
Skills Test
The skills test has three parts: a vehicle inspection, basic vehicle control, and an on-road driving test. As of August 12, 2024, Indiana updated the vehicle inspection and basic control portions of the skills test to align with the CDL Manual. Students use a specific checklist during the vehicle inspection portion based on the vehicle class they are testing in.
Passing the skills test requires actual time behind the wheel, not just classroom study.
Study Tips for the CDL Knowledge Test
Use the Indiana CDL Manual as the Foundation
The general knowledge exam pulls directly from the Indiana CDL Manual. Students should read through the manual before doing anything else. The manual is available on the Indiana BMV website at no cost.
Take Practice Tests Regularly
Reading the manual is helpful, but practice tests show where the gaps are. Students who take multiple practice tests before the exam are more likely to score above the 80% passing mark. Free practice tests are available online and mirror the format of the real exam.
Focus on Weak Areas
After taking practice tests, students should pay attention to which topics they miss most often. Common problem areas include:
- Stopping distances
- Vehicle inspection steps
- Air brake systems
Spending more time on those sections leads to better results.
Review One Section at a Time
The CDL Manual covers a lot of material. Students who try to study everything at once tend to retain less. Working through one section per study session and reviewing it before moving on helps with long-term retention.
Ask Instructors for Help
CDL instructors work with this material every day. If a student is struggling with a specific topic, asking the instructor directly is the fastest way to clear up confusion. DriveCo instructors are available to work with students outside of class time when needed.
Tips for the CDL Skills Test
Practice the Pre-Trip Inspection Until It Becomes Routine
The vehicle inspection portion of the skills test is graded on accuracy and completeness. Students need to know the inspection checklist for their vehicle class. Reviewing and practicing the checklist repeatedly helps it become second nature before test day.
Get Behind the Wheel as Often as Possible
The basic vehicle control and road test portions require hands-on experience. Students should take every opportunity to practice yard maneuvers, such as:
- Backing
- Aligning
- Docking
- Driving in real traffic conditions
DriveCo students complete training both in the yard and on public roads to prepare for this.
Slow Down During Maneuvers
Many students lose points during backing exercises by rushing. Taking extra time on slow maneuvers is almost always the better choice. Speed is not graded; accuracy is.
Know What Disqualifies a Test
Some errors during the skills test result in automatic failure, including:
- Accidents
- Traffic violations
- Refusing to perform a required maneuver
Students should review the scoring criteria for the Indiana CDL skills test before their exam date.

Frequently Asked Questions
How many questions are on the Indiana CDL general knowledge test?
Yes, the test has 50 questions. Students must answer at least 40 correctly, which is an 80% score, to pass.
What happens if a student fails the Indiana CDL knowledge test?
Students can retake the test, but Indiana BMV rules require a waiting period before retesting. Students should check current BMV guidelines for specific waiting period requirements.
How long do students have to pass the skills test after getting a CLP?
A CLP is valid for 180 days in Indiana. Students must pass the skills test before the CLP expires.
What is tested during the CDL vehicle inspection portion of the skills test?
Students are tested on their ability to identify and explain key components of the vehicle, including brakes, tires, lights, mirrors, and fluid levels. The checklist varies depending on the vehicle class being tested.
Does a student need to pass all three parts of the skills test in one visit?
No. If a student fails one portion of the skills test, they may retake only the failed portion rather than repeating the entire test.
What endorsements require a separate knowledge test?
Endorsements that require a separate knowledge test include:
- Hazardous Materials (H)
- Tanker Vehicles (N)
- Passenger (P)
- School Bus (S)
- Doubles/Triples (T).
How long does it take to complete CDL training at DriveCo?
DriveCo’s Class A CDL training program is designed to prepare students for both the knowledge and skills tests. Program length varies by schedule and location. Students can contact a DriveCo admissions advisor for specific class schedule information.
DriveCo CDL Learning Center offers Class A CDL training at locations across Indiana, including Evansville, Gary, Hamilton County, Jasper, and La Porte. For information about enrollment, class schedules, or tuition assistance options, contact an admissions advisor at 800-330-3984.