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

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:

2 / 40

Which of the following must be closed while the bus is in motion?

3 / 40

Do not tow or push a disabled bus with riders aboard the vehicle, unless:

4 / 40

When not towing a trailer, why should the tractor glad hands be locked?

5 / 40

Select the true statement in regards to brake drums:

6 / 40

You do not have to stop at railroad crossings, but must slow down and carefully check for other vehicles:

7 / 40

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

8 / 40

You should activate hazard lights within approximately how many feet before railroad crossing?

9 / 40

How far away are you required to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?

10 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

11 / 40

When inspecting your bus, you must make sure that:

12 / 40

If your engine runs a pump used during delivery of compressed gas, should you turn off the engine before or after unhooking hoses after delivery?

13 / 40

When this item is missing or loose, movement may occur between the fifth wheel assembly and the frame.

14 / 40

In the event of an accident you should remember to do the following EXCEPT:

15 / 40

Puddles or dripping fluids from the underside of the transmission and engine may indicate:

16 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

17 / 40

At around____the governor allows the air compressor to start pumping again:

18 / 40

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

19 / 40

How high should you crank the landing gear?

20 / 40

An emergency escape ramp should be used _____.

21 / 40

The trailer should be lowered so that _____.

22 / 40

Drivers placard their vehicle to _____ the risk.

23 / 40

In what position should the shut off valves on a the rear of the front trailer be in on a set of double trailers?

24 / 40

To maintain alertness during the trip, drivers should:

25 / 40

Which trailer is more likely to roll over when pulling 3 trailers?

26 / 40

You should make sure the_____before backing under a trailer.

27 / 40

You must be alert for road hazards so that:

28 / 40

Your bus is disabled. With riders aboard, the bus may be towed or pushed to a safe place only:

29 / 40

You must control how far packages labeled "Radioactive II" or "Radioactive III" are located from people and cargo space walls by referring to:

30 / 40

Select the true statement in regards to managing the space to the sides:

31 / 40

Tankers used to transport hazardous materials on vehicles must be marked with:

32 / 40

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

33 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

34 / 40

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

35 / 40

Select the true statement about empty trucks:

36 / 40

How do you supply air to the trailer tanks?

37 / 40

Which of the following is NOT an appropriate reason to flash your braking lights?

38 / 40

Select the statement that is true in regards to quick steering movements and triple/double trailers:

39 / 40

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

40 / 40

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

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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.