CDL Practice Test


Use this site as you prepare to take the Ohio CDL test. You can work through these practice test questions as you prepare for the Ohio CDL Test. The questions on these practice tests will gauge your knowledge on the various areas that apply to obtain a CDL in Ohio. This site is completely free and you are welcome to take the practice tests as many times as you would like. 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

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

2 / 40

How do you test the trailer service brakes?

3 / 40

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

4 / 40

Which of the following is NOT something you need to know in order to determine if you need to use placards?

5 / 40

To be sure that air is supplied to the second trailer:

6 / 40

After coupling with a trailer, what position should the front trailer supports be in before driving away?

7 / 40

By law, the warning lights must only be used when approaching a:

8 / 40

The cause of almost half of all truck driver deaths are:

9 / 40

When you have a major leak in the service line and you apply pressure to the brakes, the service air pressure will escape and:

10 / 40

Which of the following statements about "Radioactive" labels is true?

11 / 40

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

12 / 40

What does the amount of liquid you can carry depend on?

13 / 40

What is the service air line controlled by?

14 / 40

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

15 / 40

This should have no illegal stickers, dirt, obstructions, or damage to the glass.

16 / 40

If you double your speed, what will happen to your stopping distance?

17 / 40

Make sure that_____before you back under a trailer.

18 / 40

When stopped on a divided highway where should your reflectors be placed?

19 / 40

What action should you take before driving while drowsy?

20 / 40

When you have a major leak in the service line and put on the brake, the service air pressure will escape and cause the:

21 / 40

Spring brakes are usually held back by_____during normal driving.

22 / 40

Is this statement true or false: You do not need to use the parking brake if are leaving your vehicle for a short amount of time.

23 / 40

When would you lock some emergency roof hatches in a partly open position?

24 / 40

Some city transit buses may have a brake-door interlock system, this system:

25 / 40

Placarded vehicles must carry which type of fire extinguisher?

26 / 40

You should___to reduce the air leakage rate.

27 / 40

Select the true statement about converter dollies:

28 / 40

Which signals may be used to warn of a stopped vehicle that contains explosives?

29 / 40

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

30 / 40

When a substance in the materials table is written in italics it means :

31 / 40

Which of the following about the front tires on a commercial bus is true?

32 / 40

Tankers used to transport hazardous materials on vehicles must be marked with:

33 / 40

How far before a railroad crossing should you stop your bus?

34 / 40

The shipping papers for hazardous materials can be found:

35 / 40

What does the service brake system do?

36 / 40

In safe driving, what does communicating mean?

37 / 40

Is it important to look into the back of the fifth wheel to see if the lockpin is locked in?

38 / 40

What method should be used to test that the air is flowing to all the trailers?

39 / 40

Select the answer that is not a part of the braking process when driving a tractor-trailer combination vehicle that has ABS:

40 / 40

A tractor should not be backed under a trailer until the whole air system is:

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CDL Category Practice Tests

CDL Practice Test

How To Get A ohio Commercial Drivers License

To be eligible for a CDL in Ohio, applicants must meet the following age eligibility requirements.

  • Be at least 18 years old to operate a commercial vehicle intrastate (within Ohio only).
  • Be at least 21 years old to operate a commercial vehicle interstate (outside of Ohio).

Ohio CDL applicants must be medically certified that they are medically capable of operating a commercial vehicle and pass a vision test. Ohio applicants must get assistance with completing the forms from a CDL-certified doctor.

Applicants are required to submit the following documents.

  • Medical Examiner’s Certificate
  • (Form 649-F) Medical Examination Report for Commercial Driver Fitness Determination

Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in Ohio. Applicants can be disqualified for having multiple licenses.

Ohio CDL Endorsements
H – Hazmat Vehicles
N – Tank Vehicles
P – Passenger Vehicles
S – School Bus
T – Double or Triple Trailer
X – Combination Tank Vehicles and Hazmat Vehicles

Hit the Open Road

ohio CDL License Test Tips

All Ohio CDL applicants must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the Ohio test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The Ohio skills test can be taken 14 days after applicants pass the knowledge test. It includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each section.

Military veterans and active military members can apply to have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must:

  • Be active duty military personnel.
  • Operate a commercial vehicle as part of their military duties.
  • Have been honorably discharged from the military within the past 12 months.
  • Submit an Application for CDL Skills Test Waiver.

Additional Information

Information on the Ohio Bureau of Motor Vehicles

The Ohio Department of Public Safety Bureau of Motor Vehicles oversees CDL license requirements in Ohio. To get more information contact them via:

Website: https://www.bmv.ohio.gov/dl-cdl-testing.aspx

Phone: 844.644.6268


Additional Ohio CDL Helpful Links

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