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

To test the tractor-trailer connection for security, you should:

2 / 40

You should never brake and should rely only steering inputs to avoid a crash while driving a tanker truck.

3 / 40

You are driving a 40 foot truck at 35 MPH, how much space (in seconds) should you keep in front of you?

4 / 40

The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.

5 / 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:

6 / 40

This object is required to be checked for damage, that it's secure, and strong enough to handle any cargo.

7 / 40

The trailer height is correct for connecting a converter dolly to a second trailer when:

8 / 40

Which of the following is a recommended procedure when unloading the students?

9 / 40

You should check your tires every ____ or every ____ when driving in very hot weather.

10 / 40

Start by___when coupling.

11 / 40

The container for the mechanism that transforms the steering column action into wheel action is:

12 / 40

The Emergency Response Guidebook (ERG):

13 / 40

Anti-lock brakes:

14 / 40

Why is it dangerous to unlock the pintle hook with the dolly still under the rear trailer?

15 / 40

How do you release the dolly brakes when coupling twin trailers?

16 / 40

What is the service air line controlled by?

17 / 40

Which of these is a good rule for backing a straight bus?

18 / 40

A shipment described on the Hazardous Waste Manifest may only be delivered to another _______ carrier or treatment facility, who then signs the ______, giving you a copy which you must keep.

19 / 40

Select the best description of a baffle tank:

20 / 40

____is the most common type of foundation brakes used by heavy vehicles.

21 / 40

When approaching railroad tracks, stop your bus:

22 / 40

Off-tracking happens when going around a corner and:

23 / 40

Make sure that_____before you back under a trailer.

24 / 40

Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?

25 / 40

How should the trailer be lined up when preparing to back the tractor up?

26 / 40

Select the answer that is controlled by the foot brake.

27 / 40

What is most likely to occur when driving double and a set of trailer wheels goes into a skid?

28 / 40

Why should you not use the trailer hand brake to straighten out a jack knifing trailer?

29 / 40

For any flatbed load you must have at least ____ tie downs.

30 / 40

With the controlled braking method, you _____?

31 / 40

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

32 / 40

Select which is not a mandatory emergency equipment:

33 / 40

Select the true statement about stop valves in a cargo tank:

34 / 40

When should you not use the parking brakes?

35 / 40

At what "cut out" level does the governor stop pumping air?

36 / 40

The safety valve is usually set to open at:

37 / 40

This object should not have any missing parts, be fully raised, the crank handle is secured, and that there is no damage to the frame.

38 / 40

The interlock system for the brake and accelerator on a transit coach may be used:

39 / 40

The minimum tire tread depth for front tires is:

40 / 40

How do you check the air flow to the last trailer?

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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.