CDL Practice Test


As you prepare to obtain your CDL in Texas, you can use this site as a guide for practicing common test questions. Rules and regulations covered on these practice tests for a CDL are based on questions from the Texas TxDPS CDL manual. You can take these practice tests as often as you like on your computer or mobile device, and all the tests on this site are 100% free. 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

A safe haven is:

2 / 40

Select the reason as to why air tanks need to be drained:

3 / 40

Which of the following must drivers have in their possession while transporting class A or B explosives?

4 / 40

The two other places where the hazardous identification number must appear are:

5 / 40

Select the true statement:

6 / 40

What kind of surge occurs with baffles?

7 / 40

How do you supply air to the trailer tanks?

8 / 40

Which of the following statements about bus evacuation is true?

9 / 40

After deciding the type of evacuation that is necessary, the next step you must take is:

10 / 40

When transporting hazardous loads, you must check the tires at least:

11 / 40

When accelerating:

12 / 40

Tires should should be replaced:

13 / 40

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

14 / 40

If you are transporting cargo, you should inspect the cargo and securing devices:

15 / 40

Remember to_____to prevent rollovers.

16 / 40

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

17 / 40

With the controlled braking method, you _____?

18 / 40

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

19 / 40

Which of these statements about signaling is correct?

20 / 40

You should expect____when backing a tractor under a trailer.

21 / 40

Select the item that is not checked in the engine compartment:

22 / 40

What is the minimum amount of distance you should maintain when driving at 50 mph in ideal conditions with a 100 ft twin trailer combination?

23 / 40

The best way to describe a dual air brake system is:

24 / 40

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

25 / 40

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

26 / 40

Spring brakes are usually held back by_____during normal driving.

27 / 40

What are some of the important parts in the steering system?

28 / 40

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

29 / 40

The 3 parts of the air brake system are: service brakes, parking brakes, and ____.

30 / 40

When arriving at the destination announce:

31 / 40

When does your vehicle's single brake system need an adjustment?

32 / 40

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

33 / 40

What keeps air in the tanks should the air compressor develop a leak?

34 / 40

Five hazard classes that require placarding in any amount are ______.

35 / 40

Which of the following should you NOT do if you experience a tire failure?

36 / 40

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

37 / 40

If there is rust around the nuts, what may it indicate?

38 / 40

When inspecting your bus, you must make sure that:

39 / 40

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

40 / 40

Select the true statement about what the Air Compressor Governor controls:

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CDL Category Practice Tests

CDL Practice Test

How To Get A texas Commercial Drivers License

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

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

Texas CDL applicants must be medically certified that they are fit enough to operate a commercial vehicle and pass a vision test. Applicants are required to submit the following documents.

  • (Form CDL-4) Interstate Driver Certification
  • (Form CDL-5) Intrastate Driver Certification
  • (Form CDL-10) Certificate of Physical Exemption 49 CFR Part 391/390

Some applicants may be required to submit a Medical Examiner’s Certificate. Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in Texas. Applicants can be disqualified for having multiple licenses.

Texas 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

texas CDL License Test Tips

All Texas CDL applicants must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the Texas CDL test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees.  The Texas 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 current military members can apply to have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must be currently enlisted in the military and:

  • Possess a valid Texas driver’s license.
  • Have at least 2 years of military truck driving experience. The military vehicle must be similar to the commercial motor vehicle.
  • Have been honorably discharged from the military within the past 12 months.
  • Submit (Form CDL-ST WVR) Application for Military Skills Test Waiver signed by your commanding officer.

Additional Information

Information on the Texas Department of Public Safety

The Texas Department of Public Safety administers CDL license requirements in Texas. To get more information contact them via:

Website: http://www.dps.texas.gov/DriverLicense/CommercialLicense.htm

Phone: 512.424.2000


Additional Texas CDL Helpful Links

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