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200+ Free Alabama CDL Combination Vehicles Practice Questions

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Which statement is correct about landing gear during uncoupling for the Alabama CDL Combination Vehicles Test?

A
B
C
D
to track
2026 Statistics

Key Facts: Alabama CDL Combination Vehicles Exam

80%

Minimum federal passing score for CDL knowledge tests

49 CFR 383.135

$5

Alabama fee stated for each knowledge test

ALEA Driver License Manual

14 days

Minimum CLP holding period before CDL testing for first-time/upgrading applicants

ALEA CDL Frequently Asked Questions

360 days

Alabama CLP validity period listed by ALEA

ALEA CDL Frequently Asked Questions

Alabama Class A CDL applicants must understand combination vehicle handling and coupling before Group A privileges can be issued. Federal CDL rules require at least 80% correct on the combination vehicle knowledge portion, and ALEA materials define Class A combinations using the 26,001-pound GCWR and over-10,000-pound towed-unit threshold. Expect questions on fifth wheel and kingpin checks, no-gap coupling, tug tests, landing gear, red and blue glad hands, trailer air supply, trailer brake checks, off-tracking, rollover, backing, and jackknife recovery.

Sample Alabama CDL Combination Vehicles Practice Questions

Try these sample questions to test your Alabama CDL Combination Vehicles exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 200+ question experience with AI tutoring.

1Which statement is correct about Alabama Class A combination definition for the Alabama CDL Combination Vehicles Test?
A.GCWR is over 26,000 pounds and the towed unit is over 10,000 pounds GVWR
B.Any straight truck over 10,000 pounds
C.Any vehicle carrying cargo for pay
D.Any passenger vehicle with air brakes
Explanation: Alabama and federal CDL rules define Class A around a combination with GCWR over 26,000 pounds when the towed unit is over 10,000 pounds GVWR.
2In an Alabama Class A combination vehicle, what should the driver remember about Alabama Class A combination definition?
A.Any straight truck over 10,000 pounds
B.GCWR is over 26,000 pounds and the towed unit is over 10,000 pounds GVWR
C.Any vehicle carrying cargo for pay
D.Any passenger vehicle with air brakes
Explanation: Alabama and federal CDL rules define Class A around a combination with GCWR over 26,000 pounds when the towed unit is over 10,000 pounds GVWR.
3Which choice best matches ALEA/FMCSA guidance on Alabama Class A combination definition?
A.Any vehicle carrying cargo for pay
B.Any passenger vehicle with air brakes
C.GCWR is over 26,000 pounds and the towed unit is over 10,000 pounds GVWR
D.Any straight truck over 10,000 pounds
Explanation: Alabama and federal CDL rules define Class A around a combination with GCWR over 26,000 pounds when the towed unit is over 10,000 pounds GVWR.
4What is the safest or most accurate practice involving Alabama Class A combination definition?
A.Any passenger vehicle with air brakes
B.Any straight truck over 10,000 pounds
C.Any vehicle carrying cargo for pay
D.GCWR is over 26,000 pounds and the towed unit is over 10,000 pounds GVWR
Explanation: Alabama and federal CDL rules define Class A around a combination with GCWR over 26,000 pounds when the towed unit is over 10,000 pounds GVWR.
5Which statement is correct about federal CDL knowledge passing score for the Alabama CDL Combination Vehicles Test?
A.At least 80 percent correct is required
B.At least 60 percent correct is required
C.A score is optional after ELDT
D.Only the road test score matters
Explanation: 49 CFR Part 383 requires a passing score of at least 80 percent on CDL knowledge tests.
6In an Alabama Class A combination vehicle, what should the driver remember about federal CDL knowledge passing score?
A.At least 60 percent correct is required
B.At least 80 percent correct is required
C.A score is optional after ELDT
D.Only the road test score matters
Explanation: 49 CFR Part 383 requires a passing score of at least 80 percent on CDL knowledge tests.
7Which choice best matches ALEA/FMCSA guidance on federal CDL knowledge passing score?
A.A score is optional after ELDT
B.Only the road test score matters
C.At least 80 percent correct is required
D.At least 60 percent correct is required
Explanation: 49 CFR Part 383 requires a passing score of at least 80 percent on CDL knowledge tests.
8What is the safest or most accurate practice involving federal CDL knowledge passing score?
A.Only the road test score matters
B.At least 60 percent correct is required
C.A score is optional after ELDT
D.At least 80 percent correct is required
Explanation: 49 CFR Part 383 requires a passing score of at least 80 percent on CDL knowledge tests.
9Which statement is correct about ALEA knowledge test fee for the Alabama CDL Combination Vehicles Test?
A.The Alabama manual states $5 for each knowledge test
B.The manual states there is no knowledge-test fee
C.FMCSA collects the fee directly online
D.The fee is based on trailer length
Explanation: The Alabama driver manual states that each knowledge test fee is $5.00.
10In an Alabama Class A combination vehicle, what should the driver remember about ALEA knowledge test fee?
A.The manual states there is no knowledge-test fee
B.The Alabama manual states $5 for each knowledge test
C.FMCSA collects the fee directly online
D.The fee is based on trailer length
Explanation: The Alabama driver manual states that each knowledge test fee is $5.00.

About the Alabama CDL Combination Vehicles Exam

The Alabama CDL Combination Vehicles Test is the Class A knowledge portion for applicants who need to operate tractor-trailers and other Group A combination vehicles. It covers safe combination driving, coupling and uncoupling, fifth wheel and kingpin inspection, trailer air and electrical lines, trailer brakes, off-tracking, backing, skids, jackknife prevention, and Alabama/FMCSA CDL basics.

Assessment

Multiple-choice CDL knowledge test for Class A combination vehicle applicants; questions are based on Alabama CDL manual material and FMCSA CDL standards.

Time Limit

No separate public time limit published by ALEA

Passing Score

80%

Exam Fee

$5 per knowledge test (Alabama Law Enforcement Agency (ALEA))

Alabama CDL Combination Vehicles Exam Content Outline

25%

Safe Combination Driving

Off-tracking, wide turns, backing, speed and space management, railroad crossings, trailer swing, rollover, and jackknife prevention.

30%

Coupling and Uncoupling

Fifth wheel position, kingpin and jaws, trailer height, tug test, visual inspection, air/electric connections, landing gear, and uncoupling sequence.

25%

Trailer Air, Electrical, and Brake Systems

Red emergency and blue service glad hands, line routing, trailer air supply, tractor protection valve, trailer service and parking brake tests, and ABS limits.

20%

Combination Vehicle Inspection

Coupling area, fifth wheel mounting, kingpin, apron gap, landing gear, trailer suspension, tires, wheels, lights, cargo condition, and line defects.

How to Pass the Alabama CDL Combination Vehicles Exam

What You Need to Know

  • Passing score: 80%
  • Assessment: Multiple-choice CDL knowledge test for Class A combination vehicle applicants; questions are based on Alabama CDL manual material and FMCSA CDL standards.
  • Time limit: No separate public time limit published by ALEA
  • Exam fee: $5 per knowledge test

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Alabama CDL Combination Vehicles Study Tips from Top Performers

1Memorize the Alabama/Federal Class A threshold: 26,001 pounds or more GCWR and a towed unit over 10,000 pounds GVWR.
2Practice the full coupling sequence until fifth wheel position, kingpin lock, tug test, no-gap visual inspection, air/electric connections, and landing gear checks are automatic.
3Know red emergency/supply and blue service glad hands, and understand what happens when trailer air is lost.
4Study off-tracking, trailer swing, and backing with diagrams or real vehicle observation because many missed questions are scenario based.
5Treat trailer skids and jackknife recovery as safety-critical: release brake lockup, keep speed down, and avoid panic stops.

Frequently Asked Questions

What score do I need to pass the Alabama CDL Combination Vehicles Test?

Federal CDL standards in 49 CFR 383.135 require at least 80% correct on each knowledge test. A driver who fails the combination vehicle portion cannot be issued a Group A CLP or CDL.

What does Alabama Class A CDL cover?

ALEA and FMCSA use the Group A/Class A framework: any combination with GCWR of 26,001 pounds or more when the towed unit is over 10,000 pounds GVWR.

What does the Alabama combination test cover?

The test covers combination vehicle control, coupling and uncoupling, fifth wheel and kingpin checks, landing gear, air and electric lines, trailer brake checks, ABS, off-tracking, backing, rollover risk, skids, and jackknife prevention.

Is doubles/triples included in this test?

Only basic overlap appears here. Pulling double or triple trailers requires the separate T endorsement knowledge test under FMCSA endorsement rules.

Do I need a CLP before the Alabama CDL skills test?

ALEA states first-time or upgrading CDL applicants must be issued a CLP first and hold it at least 14 days before CDL testing. Entry-Level Driver Training also applies for first-time CDL applicants before the skills test.