CDL Practice Test


This is a free site and you are able to take the tests as a study guide as you prepare for the Indiana CDL knowledge exam. The topics covered in these Indiana practice CDL tests are taken from the Indiana CDL manual. You are welcome to take the tests as many times as you need to. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50-minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin.

1 / 40

Air tanks should be drained:

2 / 40

Off-tracking happens when going around a corner and:

3 / 40

Select the true statement in regards to the center of gravity for tanks:

4 / 40

If you have to swerve to avoid a hazard, it's important to:

5 / 40

When stopping for railroad tracks, you must stop no closer than how many feet before the nearest track?

6 / 40

Never refuel your bus:

7 / 40

Which of the following is NOT an important reason to look far ahead when you are driving?

8 / 40

Check that the parking brake will hold by____when the parking brake is engaged and the trailer brakes released if not a combination vehicle.

9 / 40

A minimum tread depth of 2/32 inch is required for:

10 / 40

What are shippers trying to accomplish when they package the material?

11 / 40

Select whether the following statement is true or false: Front wheel brakes are good to use in all conditions.

12 / 40

Select the statement that tells you how you can check the low pressure warning signal.

13 / 40

Which of the following is not a prohibited practice on the bus:

14 / 40

There are 2 reasons as to why hauling liquids take special care. One reason is the ___center of gravity.

15 / 40

When transporting hazardous waste, you must:

16 / 40

You don't want to use wheel chocks when hooking a combination to a second trailer with no spring brakes. What should you do?

17 / 40

The method used to make sure the spring brakes will come on automatically is to:

18 / 40

Double and triple trailers should be driven with care to avoid a rollover or jacknife.

19 / 40

Select how brakes work on long, steep downgrades:

20 / 40

These tires should have a minimum tread depth of 4/32 inches.

21 / 40

A safe haven is:

22 / 40

A driver of a tanker should use an escape ramp when _____.

23 / 40

You should adjust all the outside left and right side convex mirrors to see:

24 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

25 / 40

What should you do if you start a trailer skid?

26 / 40

Select the first action to do when the low air pressure warning comes on:

27 / 40

How do you secure a second trailer to your combination vehicle?

28 / 40

What are the three hazard classes should NOT be loaded into a trailer that has a heater air conditioner unit?

29 / 40

Before backing under the trailer after connecting the air lines you should:

30 / 40

The sliding mechanism and locking device for a tandem axle on trailers is:

31 / 40

If you do become sleepy while driving, you should _____.

32 / 40

You should brake on a long steep downgrade hill as a supplement to the braking effects of the engine

33 / 40

When conducting a pre-trip inspection, the most important item to verify is _____.

34 / 40

How do you make sure the trailer height is correct before coupling?

35 / 40

A battery box check is important. The battery must be secure, connection must be tight, and cell caps must be present. In addition these items should be checked:

36 / 40

When fueling a placarded vehicle, someone must always be:

37 / 40

Make sure____when the front trailer supports are up and the trailer is sitting on the tractor.

38 / 40

Which of the following must be closed while the bus is in motion?

39 / 40

What is the next step after securing the bus when you have an unruly child on board?

40 / 40

Before backing under the trailer you should______when coupling a tractor and trailer with air lines already connected.

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CDL Category Practice Tests

CDL Practice Test

How To Get An indiana Commercial Drivers License

All applicants for an Indiana CDL must meet strict eligibility requirements. Each applicant must be a legal resident of the state of Indiana and withhold a driver’s license that is at least one year old. Some other eligibility requirements are listed below. Individuals can apply for a CDL to transport property within the Indiana state lines at the age of 18 years old. Individuals must be 21 years of age or older to drive outside of Indiana state lines. In addition, to receive a Hazmat Endorsement or to transport people, individuals must be at least 21 years old.All applicants are required to have a DOT medical card and submit a self-certification form that describes the types of vehicles they intend to operate. Failure to submit the form or have a medical card will automatically disqualify an individual from obtaining their CDL.

Any applicants that fall into the following categories are automatically disqualified from receiving their commercial driver’s license.

  • Current driver’s license is suspended, revoked, denied, or canceled.
  • Conviction of driving a commercial vehicle impaired with the past 24 months.
  • Possessing more than one driver’s license.
  • Currently has CDL privileges disqualified or revoked in Indiana or another state.

All applicants must pass a knowledge exam and a CDL skills test in a vehicle that represents the license Class they are applying for.

X – Hazmat Tank
H – Hazardous Materials
N – Tank Vehicles
P – Passenger Vehicles
T – Double or Triple Trailers
S – School Bus

Hit the Open Road

indiana CDL License Test Tips

All applicants are required to pass a general knowledge test for their CDL. The knowledge test consists of 50 questions on the topic of commercial driving. Class A drivers must complete an additional 20 questions about combination vehicles. Those seeking endorsements must take an additional exam for each endorsement they wish to receive. A passing score for each test is at a minimum of 80 percent.

All skills tests will consist of three parts. These include a pre-trip inspection, basic control skills exam, and a road trip exam. These are to be completed at a local BMV office or other authorized examination site. An applicant must pass each part of the skills test to be eligible for their CDL.

Additional Information

Information on the Office of the Indiana Bureau of Motor Vehicles

The Indiana Bureau of Motor Vehicles is responsible for the administration of the CDL requirements and testing in Indiana. To get more information contact them via:


Phone:  888.692.6841


Additional Indiana CDL Helpful Links

Please use the links below to access more valuable Indiana CDL testing resources and to learn more about practice driving tests for the state of Indiana.