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

When should you check your mirrors for a lane change?

2 / 40

The school bus driver may be the only contact person from school system some parents meet. The percentage of such parents is as high as:

3 / 40

How often should air tanks be drained?

4 / 40

Select the true statement about seeing ahead.

5 / 40

Select the true statement about converter dollies:

6 / 40

Select the statement that best explains the "crack-the-whip" effect.

7 / 40

Why do air brakes take longer to stop than hydraulic brakes?

8 / 40

Before transporting a sealed load, you must check:

9 / 40

Select the true statement in regards to quick steering movements and double trailers:

10 / 40

You should have the fifth wheel plate greased as recommened because:

11 / 40

An emergency escape ramp should be used _____.

12 / 40

You should____in order to inspect the coupling.

13 / 40

To find out if a shipment includes a hazardous material, you should:

14 / 40

When transporting explosives you may not park:

15 / 40

A shipment described on the Hazardous Waste Manifest may only be delivered to another _______ carrier or treatment facility, who then signs the ______, giving you a copy which you must keep.

16 / 40

Do empty trucks have the best braking?

17 / 40

This object should be clean with no obstructions, illegal stickers or damage to the glass.

18 / 40

If you double your speed, what will happen to your stopping distance?

19 / 40

It is very important that you never smoke around which hazard classes?

20 / 40

How do you hook a combination to a second trailer without spring brakes and without using wheel chocks?

21 / 40

Which of the following is a reason that shippers package material?

22 / 40

Why is understanding the loading and unloading procedures so critical?

23 / 40

A tank trailer should never be fully loaded due to:

24 / 40

Select the statement that best describes what the service line is for.

25 / 40

Placarded vehicles must carry which type of fire extinguisher?

26 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

27 / 40

The minimum tire tread depth for front tires is:

28 / 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?

29 / 40

You should check your tires every ____ or every ____ when driving in very hot weather.

30 / 40

When stopped on a divided highway where should your reflectors be placed?

31 / 40

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

32 / 40

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

33 / 40

All standing riders must stay:

34 / 40

Suspension systems:

35 / 40

You should expect____when backing a tractor under a trailer.

36 / 40

The transport index of a radioactive material:

37 / 40

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

38 / 40

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

39 / 40

With Division 1.2 or 1.3 Explosive B, how close to the travelled part of the roadway can you park?

40 / 40

The 3 parts of the air brake system are: service brakes, parking brakes, and ____.

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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.