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

Bus drivers must have a CDL if they drive a vehicle:

2 / 40

Which trailer is most likely to turn over when you make a sudden turn while pulling doubles?

3 / 40

A driver that hauls hazardous materials must attend training every:

4 / 40

How should the shut off valves at the rear of the trailer be when inspecting doubles?

5 / 40

Select how brakes work on long, steep downgrades:

6 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

7 / 40

Which of the following are possible causes of tire fires?

8 / 40

Select the statement that tells you how you can check the low pressure warning signal.

9 / 40

When driving with multiple trailers, which one should be right behind the tractor?

10 / 40

What does the amount of liquid allowed in the tank depend on?

11 / 40

While completing the 3rd component of the air brake check of a combination vehicle, at what psi should the tracor protection valve and parking brake valve should pop out?

12 / 40

The manual says you should look _____ ahead while driving.

13 / 40

When there is a hazardous materials emergency. You should:

14 / 40

Where are shut off valves located on trailers that are doubles or triples?

15 / 40

When is it acceptable for non-hazardous materials to be described by hazard class words or identification numbers?

16 / 40

Select the two reasons as to why special care is needed when driving a tank vehicle:

17 / 40

You should follow behind other vehicles ______when traveling under 40 mph.

18 / 40

The locking jaws of the kingpin should close around:

19 / 40

You should line up_____when getting ready to back under the trailer.

20 / 40

What should you check for when inspecting a converter dolly?

21 / 40

In Column 1 the symbol "I" means:

22 / 40

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

23 / 40

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

24 / 40

The cause of almost half of all truck driver deaths are:

25 / 40

How often should you check your cargo?

26 / 40

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

27 / 40

Which of the following is NOT a basic step to be taken at a crash scene?

28 / 40

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

29 / 40

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

30 / 40

____is what can legally hold the parking brake or emergency brake in position for a bus, truck, or truck tractor.

31 / 40

When you have a major leak in the service line and put on the brake, the service air pressure will escape and cause the:

32 / 40

Where is compressed air stored?

33 / 40

You should check the_____when loading small tanks equipped with bulkheads.

34 / 40

You should___when driving down a long steep hill.

35 / 40

In safe driving, what does communicating mean?

36 / 40

Remember to_____when steering to avoid a crash while driving doubles.

37 / 40

How do you check the air compressor governor "cut in" and "cut out" pressures?

38 / 40

How often should you drain your air tanks?

39 / 40

Which of the following statements is true about speed management?

40 / 40

The compressor is connected to the engine via _____?

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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.