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

When must a driver’s inspection report be completed?

2 / 40

Which of the following statements about stopping distances is NOT true?

3 / 40

How often should air tanks be drained?

4 / 40

What does the drain valve for air tanks remove?

5 / 40

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

6 / 40

Select the true statement about empty trucks:

7 / 40

In what position should the shut off valves on a the rear of the front trailer be in on a set of double trailers?

8 / 40

What can you do at an accident site to help avoid another accident?

9 / 40

When transporting both hazardous and non hazardous materials, your bills must:

10 / 40

Upon what does the amount of liquid you can carry in a load depend?

11 / 40

While driving on a clear night with low beam headlights, you should be able to stop within:

12 / 40

You must first______to supply air to the trailer.

13 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

14 / 40

How do you test the trailer service brakes?

15 / 40

A shipper’s certification is best described as _____.

16 / 40

You should_____when an emergency requires you to quickly stop your tanker.

17 / 40

Select the true statement about dual air brake systems:

18 / 40

Another term for a smooth bore tank is:

19 / 40

An oncoming vehicle keeps its high beams on. You should deal with this hazard by:

20 / 40

Select the statement that describes smooth bore tanks:

21 / 40

The most dangerous time during the school bus ride is:

22 / 40

The reason a bulk liquid tanker is hard to handle is:

23 / 40

After the initial drop, the maximum leakage rates per minute is:

24 / 40

You should check____when loading the small tanks of a cargo tank with bulkheads.

25 / 40

Select the true statement about convex ("spot") mirrors.

26 / 40

What should you hook up before backing a tractor to a trailer for coupling?

27 / 40

Off-tracking happens when going around a corner and:

28 / 40

You should check that the _____are secure, caps are on tight, and is not leaking.

29 / 40

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

30 / 40

The longest crack that brake or disc drums can have is:

31 / 40

Select the true statement about empty trucks:

32 / 40

What should you do if you start a trailer skid?

33 / 40

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

34 / 40

The average person requires how many hours of sleep per 24 hour period?

35 / 40

What are the 3 methods for securing a second trailer before coupling?

36 / 40

What should you check for when inspecting a converter dolly?

37 / 40

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

38 / 40

What is the most important reason for doing a vehicle inspection?

39 / 40

How many seats may be placed in the aisle if the bus is a charter and is carrying agricultural (farm) workers?

40 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

Your score is

The average score is 68%

4/5 - (2 votes)

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.