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

Select which is not a mandatory emergency equipment:

2 / 40

An air system that is fully charged will typically have ___ psi of pressure.

3 / 40

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

4 / 40

If a rider wants to bring a car battery or a can of gasoline or kerosene aboard your bus, you should:

5 / 40

Remember to_____to prevent rollovers.

6 / 40

When should air tanks be drained?

7 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

8 / 40

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

9 / 40

You need to be extra careful when driving smooth bore tanks:

10 / 40

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

11 / 40

Which of the following is a necessary qualification for non-bulk packaging?

12 / 40

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

13 / 40

Where can you find a shipper’s certification?

14 / 40

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

15 / 40

Select the true statement about empty trucks:

16 / 40

The trailer height is correct for connecting a converter dolly to a second trailer when:

17 / 40

This object should not have any missing parts, be fully raised, the crank handle is secured, and that there is no damage to the frame.

18 / 40

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

19 / 40

When approaching a school bus stop, you should:

20 / 40

The walls that separate compartments inside the tanks and having openings at the top and bottom are called:

21 / 40

A portable tank differs from a cargo tank in that ______.

22 / 40

Which of the following statements is true about speed management?

23 / 40

Which contains more alcohol: a 12-ounce glass of 5% beer, a 5-ounce glass of 12% wine or a 1 1/2-ounce shot of 80 proof liquor?

24 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

25 / 40

It has just reached freezing. Which of the following areas is slippery?

26 / 40

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

27 / 40

This should be cleaned and then adjusted properly while inside the cab.

28 / 40

How do you check the power steering fluid?

29 / 40

A truck with baffles will handle:

30 / 40

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

31 / 40

What method should be used to test that the air is flowing to all the trailers?

32 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

33 / 40

What is the stopping distance for a tractor trailer that is traveling at 55 mph on dry pavement?

34 / 40

Select the true statement about seeing ahead.

35 / 40

The average person requires how many hours of sleep per 24 hour period?

36 / 40

You need to raise the landing gear just to the height of where it clears the pavement before driving.

37 / 40

______is a device that connects the service and emergency air lines between the tractor and trailer.

38 / 40

Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses after finishing that delivery?

39 / 40

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

40 / 40

The locking jaws of the kingpin should close around:

Your score is

The average score is 42%

5/5 - (4 votes)

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.