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

What is the safest way to stop unruly behavior on the bus?

2 / 40

Front wheel brakes are good under what kind of conditions?

3 / 40

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

4 / 40

The best way to test if the spring brakes come on automatically is to:

5 / 40

How do you test the trailer service brakes?

6 / 40

Select which is not an engine compartement belt:

7 / 40

A bus has a GVWR of 22,000 pounds and seats 24 passengers. What CDL class is this vehicle?

8 / 40

Why does it take special skills to haul a tank vehicle?

9 / 40

For any flatbed load you must have at least ____ tie downs.

10 / 40

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

11 / 40

Select the accurate statement in regards to rolling up the landing gear to complete the coupling process.

12 / 40

Which of the following statements about overhead space is true?

13 / 40

When should you not use the parking brakes?

14 / 40

You should brake on a long steep downgrade hill as a supplement to the braking effects of the engine

15 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

16 / 40

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

17 / 40

This object should not move more than an inch by pulled by hand with the brakes released for manual slack adjusters.

18 / 40

Tires should should be replaced:

19 / 40

Select the action that is not recommended when driving on slippery roads:

20 / 40

What should you hear when you test the trailer brakes by opening the service air line at rear of trailer with the hand valve on?

21 / 40

Liquid surge affects the handling of a tanker by:

22 / 40

You should be extra cautious when___while driving a smooth bore tanker combination.

23 / 40

What kind of surge can occur in a tank with baffles?

24 / 40

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

25 / 40

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

26 / 40

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

27 / 40

Before pulling away, make sure the landing gear of the trailer is:

28 / 40

The basic description of a hazardous material includes the hazard class, the identification number, and the proper shipping name. Which one must appear first on the shipping paper?

29 / 40

Remember to_____to prevent rollovers.

30 / 40

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

31 / 40

This carries hydraulic fluid or air to the wheel brake assemby.

32 / 40

Select the true statement in regards to when a bulk tank vehicle stops at an intersection on a slippery surface:

33 / 40

Which of the following will confirm that you are driving with anti-lock brakes?

34 / 40

What is a technical name?

35 / 40

What is the value of the overhead rear-view mirror inside of the bus?

36 / 40

Which of the following types of cargo must never be carried on a bus with passengers?

37 / 40

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

38 / 40

Play of the steering wheel should not exceed:

39 / 40

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

40 / 40

There must not be more than_____for engine compartment belts.

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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.