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

The emergency air line is used to:

2 / 40

Which of the following statements about downshifting is NOT true?

3 / 40

This object should not move more than an inch by pulled by hand with the brakes released for manual slack adjusters.

4 / 40

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

5 / 40

Air tanks should be drained:

6 / 40

You are inspecting the_____when looking for broken welds, cracks, holes, or other damage to the longitudinal frame member, cross members, box, and floor.

7 / 40

A baffled tanker has:

8 / 40

You may use DANGEROUS placards instead of separate placards for each Table 2 hazard class when:

9 / 40

Select the inappropriate way to test for the low pressure warning signal.

10 / 40

Select the step that comes first:

11 / 40

When accelerating:

12 / 40

A safe haven is:

13 / 40

A placard is required for a combustible liquid at?

14 / 40

Select the two reasons as to why special care is needed when driving a tank vehicle:

15 / 40

What position should the heaviest trailer be in when pulling 3 trailers?

16 / 40

Forward and back surge is powerful in this type of tanker.

17 / 40

Buses may carry small-arms ammunition labeled ORM-D, emergency hospital supplies, and drugs. However, buses must never carry:

18 / 40

Front wheel brakes are good under what kind of conditions?

19 / 40

Tires should should be replaced:

20 / 40

Select the statement that is true in regards to managing space to the sides.

21 / 40

The bolst, brackets, or bushings that attach the air bag and/or spring to the vehicle and axle frame are _____.

22 / 40

Select the true statement in regards to converter dollies:

23 / 40

A bus has a GVWR of 22,000 pounds and seats 24 passengers. What CDL class is this vehicle?

24 / 40

Select when you should use the parking brake:

25 / 40

Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses after finishing that delivery?

26 / 40

_____ create a little above 90 degree angle between the adjuster arm and push rod when the brakes are released and no less than 90 degrees when the brakes are applied.

27 / 40

Be careful to check the_____when unloading the smaller tanks of bulk heads.

28 / 40

What is the benefit of ABS?

29 / 40

What is the brake system that applies and releases the brakes when the brake pedal is used?

30 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 Dangerous When Wet material?

31 / 40

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

32 / 40

Select the true statement about emergency steering and tankers:

33 / 40

This item should be firmly attached the to frame, be solid, and clear of objects:

34 / 40

When should you drain air tanks that do not have an automatic tank drain?

35 / 40

The compressor is connected to the engine via _____?

36 / 40

Select the true statement about empty trucks:

37 / 40

When transporting hazardous waste, you must:

38 / 40

What placards, if any, do you need if your load includes 20 pounds of Division 2.3 gas and 1,001 pounds of flammable gas?

39 / 40

It is good practice to_____when uncoupling.

40 / 40

Buses may NOT have recapped or regrooved tires:

Your score is

The average score is 54%

5/5 - (2 votes)

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.