CDL DOUBLES TRIPLES PRACTICE TEST ALABAMA

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Safely pulling double and triple trailers requires knowledge and skill. If you want to pull double or triple trailers, you must add the Doubles/Triples (T) endorsement to your Class A CDL. The Alabama doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The AL CDL doubles triples test covers the following sections of the Alabama CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this AL CDL practice test now to prepare for the actual test!
1. Glad hands are:
securement devices.
coupling devices.
warning devices.
electronic devices.
2. When you turn suddenly, which trailer is most likely to turn over?
The last trailer of triples
The rear trailer of doubles
The front trailer
None of the above.
3. Hanging meat in a refrigerated truck can be:
a very stable load with a low center of gravity.
a very stable load if properly distributed.
a very unstable load with a low center of gravity.
a very unstable load with a high center of gravity.
4. Which of the following is not a type of retarder?
Exhaust
Pressure
Hydraulic
Electric
5. What happens when the center of gravity of a truck moves higher up from the road?
The vehicle is more stable while turning.
It becomes much easier to downshift at the right rpm.
The truck becomes easier to turn over.
It is easier it is to turn around corners.
6. You are driving a modern truck with a manual transmission. When going down a hill you should usually:
use the same gear you would use to go up the hill.
downshift after your speed has already built up.
use a lower gear than would be required to go up the hill.
shift into neutral and coast.
7. The posted speed limit for a curve:
may be too fast for many trucks or buses.
is safe for trucks or buses, but it may be too fast for cars.
is safe for all vehicles.
is optional and may be exceeded.
8. When you see you will need to slow down, you can warn drivers behind you by:
making gestures.
turning on the right turn signal.
tapping the brakes a few times.
slamming on the brakes.
9. Who is responsible for inspecting the cargo?
The driver
The person who loaded and secured the cargo
The shipper
The motor carrier
10. When driving a 60-foot truck at 50 mph, your minimum following distance should be:
3 seconds
6 seconds
7 seconds
5 seconds
 
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Frequently Asked Questions

Make sure you've got all you need when applying. Ensure you bring the following documents to fulfill the necessary requirements:

  • Proof of identity, such as a passport or a certified birth certificate
  • Proof of Social Security Number
  • Proof of residency (at least two documents)
  • Proof of school enrollment (if you are younger than 19)

If you are a non-U.S. citizen, you will also need a valid passport and a proof of your legal presence in the U.S.

To obtain a class D driver's license in Alabama, teens must follow the three steps of the Graduated Driver License (GDL) system. Here are the age requirements:
  • For a learner's permit, you must be at least 15 years old.
  • For a restricted license, you must be 16 years old or older.
  • For an unrestricted or regular license, you must be at least 17 years old. However, individuals aged 17 must hold a restricted license for at least six months before applying for a regular license. If you are 18 years old or older, you may apply for a driver’s license immediately (the road skills exam is required).

Individuals who are 18 or older, those aged 17 or older with valid licenses for six months or more, individuals 16 or older who are married and the head of the household, and emancipated individuals are exempt from the GDL program.




After completing a pre-application online for your first license or permit, you can check where the nearest Alabama DMV office is located and its business hours. Call the office or go in person to take your knowledge test.

Alabama provides the option to take the DMV written test in several foreign languages, including Arabic, Chinese, Farsi, French, German, Greek, Japanese, Korean, Russian, Spanish, Thai, and Vietnamese. For those who are hearing impaired, exams are offered also in American Sign Language at certain driver license offices.

The DMV written test test is based on the Alabama Driver's Manual. Focus on road signs, safe driving practices and road rules. Take our free practice tests to prepare for the test, or sign up for DMV Premium to unlock more resources and prepare for your exam faster!
After passing the required examination, new drivers receive a driver's license with the 'Y' restriction. This allows them to drive accompanied by a driver aged 21 or older or a certified driving instructor seated beside them. For drivers who are 16 years old or 17 with a license of less than 6 months, specific restrictions apply:
  • No more than 1 non-family passenger, excluding parents, guardians, or supervising licensed drivers at least 21 years old.
  • No driving between 12 midnight and 6 a.m., unless accompanied by a parent or legal guardian or under certain exceptions like work, school events, religious events, or emergencies.
  • It is unlawful to use handheld communication devices while driving.

Upon passing the road test, a regular license is issued, and the 'Y' restriction is removed.


In Alabama, the learner's license is valid for four years, with the option to renew it once. This waiting period ensures you have ample time to gain valuable driving experience and feel confident before the road exam.

AL CDL Doubles Triples Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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