alabama
CDL Practice Test

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The practice tests below offer CDL practice test questions in all the different topic areas you’ll see on the Alabama CDL test. The CDL tests are free and can be taken as often as you’d like to help you in your preparation for earning an Alabama commercial driver's license. 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 start your Alabama CDL practice test.

1 / 40

The front trailer supports should be____before driving away.

2 / 40

Select the true statement about dual air brake systems:

3 / 40

Some hazardous materials may not be loaded together with other hazardous materials. The prohibited combinations are listed in the:

4 / 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.

5 / 40

A safe haven is:

6 / 40

Which of the following statements about downshifting is NOT true?

7 / 40

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

8 / 40

You should place the starter switch key into your pocket while you are performing the pre-trip inspection because:

9 / 40

Select the true statement in regards to the liquid inside of a bulk tank causing a tank truck to roll sideways.

10 / 40

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

11 / 40

Select the true statement about empty trucks:

12 / 40

You should___to reduce the air leakage rate.

13 / 40

A disruptive passenger:

14 / 40

Which of the following statements is true about speed management?

15 / 40

To decide which placards you need, if any, what three things do you need to know?

16 / 40

What do yo need to do before supplying air to the air tanks of the second trailer?

17 / 40

What is the service air line controlled by?

18 / 40

Select the true statement in regards to unhooking the pintle hook while the converter dolly is still under the trailer.

19 / 40

How should the pintle hook be when backing a dolly under the second trailer?

20 / 40

When this item is missing or loose, movement may occur between the fifth wheel assembly and the frame.

21 / 40

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

22 / 40

When backing your vehicle, which of the following is NOT recommended

23 / 40

The emergency air line is _____and the service air line is____.

24 / 40

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

25 / 40

The gauge that needs to come up to normal levels after starting the engine within a few seconds is _____.

26 / 40

Students exit the bus and walk:

27 / 40

If you are driving a 100-foot truck with double trailers at 30 mph in dry conditions, how many seconds of space should there be between your truck and other vehicles?

28 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

29 / 40

What are shippers trying to accomplish when they package the material?

30 / 40

Select the definition for outage:

31 / 40

When driving normally, some drivers use the hand valve before applying the brake pedal to prevent jack knifing. Select the most appropriate response to this statement.

32 / 40

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

33 / 40

What are the dividers that are inside tankers that have an opening at the bottom and top?

34 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

35 / 40

Alcohol evaporators in some air brake systems help to:

36 / 40

Placarded vehicles must carry which type of fire extinguisher?

37 / 40

What action should you take before driving while drowsy?

38 / 40

Check to ensure that____when inspecting the coupling.

39 / 40

Select the true statement in regards to crossing your air lines on a new trailer with spring brakes

40 / 40

Select the true statement in regards to the braking power of spring brakes.

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CDL Category Practice Tests

How To Get an alabama Commercial Drivers License

Applicants must be of the legal age of 18 or older. Those between the ages of 18 and 21 are only permitted to drive a commercial vehicle within the state of Alabama. Those age 21 and older may drive a commercial vehicle across state borders. Only those aged 21 and older may apply for their hazardous materials endorsement. All applicants must possess a DOT Medical Card.

An applicant’s driving record will be considered when applying for a CDL license. There are specific items in which a driver will be disqualified for a commercial driver’s license. These include:

  • Any suspension/revocation 36 months before submitting an application.
  • Any six-point violation or conviction of operating a motor vehicle impaired 24 months prior to submitting an application.
  • Any current denial, cancellation, suspension, or revocation of driver’s license.
  • Possessing multiple driver’s licenses from various States.
  • Not meeting certifications on BFS-103 CDL Certification Form.

Alabama requires all CDL applicants to complete both a knowledge test and a skills test. Alabama offers the following CDL license endorsements:

  • S – School Bus
  • T – Double Trailer
  • P – Passenger
  • N – Tank Vehicles
  • H – Hazardous Materials

Hit the Open Road

alabama CDL License Test Tips

The knowledge tests are presented in written form for Class A, B, and C applicants. All classes are required to take a 50 question assessment. Those applying for a Class A CDL will need to complete an additional 20 questions about combination vehicles. Applicants seeking to drive vehicles with air brakes must complete a 25 question air brake assessment. Those seeking any endorsement other than hazardous materials must complete a 20 question assessment that is endorsement specific. Those applying for the hazardous materials endorsement must complete a 30 question knowledge test. All applicants must receive a score of 80 percent or higher on each test to pass.

A skills test is required for all CDL applicants regardless of Class. The School Bus and Passenger Endorsements require a skills test as well. All applicants applying for Air Brakes Certification must use a vehicle that is equipped with air brakes for their skills test. The CDL skills test consists of a vehicle inspection test, basic control skills test, and a driving test. All three test sections must be passed for CDL approval. Failure in any skills test area automatically fails the applicant.

Additional Information

CDL Testing by the Alabama Law Enforcement Agency

The Alabama Law Enforcement Agency administers the certifying and testing of commercial drivers in the state. To get more information contact them via: Website:  https://www.alea.gov/dps/driver-license
Phone:  334.242.4400
Email:  [email protected]

Additional Alabama CDL Helpful Links

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