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

2 / 40

Select what you should not do when coupling the glad hands.

3 / 40

Suspension systems:

4 / 40

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

5 / 40

The best way to have control on curves is:

6 / 40

Off-tracking happens when going around a corner and:

7 / 40

How do you secure a second trailer to your combination vehicle?

8 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

9 / 40

Which of the following statements about overhead space is true?

10 / 40

What are the three hazard classes should NOT be loaded into a trailer that has a heater air conditioner unit?

11 / 40

Which seats must have a seat belt:

12 / 40

When accelerating:

13 / 40

Which of the following statements is FALSE:

14 / 40

While driving at night, which lights should you use as often as you can?

15 / 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?

16 / 40

What is the standee line?

17 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

18 / 40

Where are the two main places where the hazardous material identification number appears?

19 / 40

When driving a combination vehicle, the trailer breaks away severing the air lines. The trailer brakes should come on and ____.

20 / 40

Which of these statements about signaling is correct?

21 / 40

If you are drowsy, you should _____ before you drive.

22 / 40

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

23 / 40

A safe haven is ______.

24 / 40

The air leakage rate for combination vehicles should not be more than _ psi a minute.

25 / 40

The object that doesn't get checked at the side of the trailer is the:

26 / 40

The designation RQ identifies the material's:

27 / 40

Remember to_____to prevent rollovers.

28 / 40

Select the true statement in regards to driving a truck with triple or double trailers:

29 / 40

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

30 / 40

Select the true statement in regards to what the fifth wheel should be checked for.

31 / 40

What position should the tractor protection control valve be in after coupling?

32 / 40

You can be sure air is supplied to the second trailer by:

33 / 40

Which of the following is NOT an acceptable type of marking for hazardous materials?

34 / 40

What are some things you should check on the front of your vehicle when doing the walk-around inspection?

35 / 40

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

36 / 40

If your engine runs a pump used during delivery of compressed gas, should you turn off the engine before or after unhooking hoses after delivery?

37 / 40

What is the normal operating range for a truck's oil pressure?

38 / 40

When must a driver’s inspection report be completed?

39 / 40

What action should you take if there is no phone available and you discover your hazardous materials shipment leaking at a rest stop?

40 / 40

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

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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.