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

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

2 / 40

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

3 / 40

The most important hand signal you should agree on with a helper is:

4 / 40

If you are stopped on an incline, how can you start moving without rolling back?

5 / 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.

6 / 40

Select the two things that are important in preventing a rollover:

7 / 40

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

8 / 40

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

9 / 40

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

10 / 40

Select the true statement about converter dollies:

11 / 40

When checking for_____you are looking for dripping fluids or puddles on the ground below the transmission or engine.

12 / 40

If you have riders on board, you must never refuel:

13 / 40

Select the true statement in regards to a converter dolly:

14 / 40

Select the true statement in regards to an application pressure gauge:

15 / 40

Secure baggage and freight in ways that avoid damage and:

16 / 40

Select the true statement in regards to your brake function when your ABS fails

17 / 40

The bus driver must accept responsibility for supervising and controlling students while on the bus route. Who is the person in charge?

18 / 40

A truck with baffles will handle:

19 / 40

How much space should there be between the lower and upper fifth wheel?

20 / 40

Which two special conditions indicate that you should downshift?

21 / 40

Why should you use chocks when parking a trailer without spring brakes?

22 / 40

How often should you check your cargo?

23 / 40

If there is not a sight glass to check the oil level you are required to look for leaks around the _____.

24 / 40

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

25 / 40

If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?

26 / 40

What is NOT one of the four skill areas that operating a commercial vehicle requires?

27 / 40

A commercial motor vehicle (CMV) is defined as:

28 / 40

What type fire extinguisher is required in the power unit of a placarded vehicle?

29 / 40

Select what you should do before leaving the vehicle unattended:

30 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

31 / 40

On tandem axle for trailers, the sliding mechanism and locking device is:

32 / 40

What school bus accidents should be reported?

33 / 40

Why should you cover cargo?

34 / 40

What does the drain valve for air tanks remove?

35 / 40

What action should you take before driving while drowsy?

36 / 40

What is most likely to occur when driving a tanker truck and the front wheels begin to skid?

37 / 40

Operating a motor vehicle with the intent of doing harm to others or physically assaulting a driver or their vehicle is known as?

38 / 40

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

39 / 40

The parking brakes should be used____in air brake vehicles.

40 / 40

One reason hauling liquids in tank vehciles require special care is:

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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.