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200+ Free Arizona CDL Combination Vehicles Practice Questions

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You are driving an empty 53-foot trailer in heavy rain. What is your greatest control risk?

A
B
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D
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2026 Statistics

Key Facts: Arizona CDL Combination Vehicles Exam

80%

Passing Score

ADOT MVD / 49 CFR 383.135

$25

Arizona Class A/B CLP Fee

ADOT MVD CDL information

12 months

Arizona CLP Validity

ADOT MVD CDL information

14 days

Minimum CLP Hold Before Skills Test

ADOT MVD CDL information

26,001 lb

Class A GCWR Threshold

49 CFR 383 / ADOT MVD CDL classes

10,000 lb+

Towed Unit GVWR for Class A Rule

49 CFR 383 / ADOT MVD CDL classes

Red / Blue

Emergency / Service Glad-Hands

ADOT MVD CDL Manual

Arizona Class A applicants must pass the Combination Vehicles knowledge test before Group A CLP/CDL issuance. ADOT MVD requires at least 80% correct on CDL knowledge tests and failed tests may be retaken the next business day. Arizona CLPs are valid for a maximum of 12 months, and holders must wait at least 14 days after initial CLP issuance before taking the CDL skills test. The Class A/B CLP fee is $25 before endorsements.

Sample Arizona CDL Combination Vehicles Practice Questions

Try these sample questions to test your Arizona 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 Arizona CDL knowledge-test logistics?
A.ADOT MVD requires at least 80 percent correct on CDL knowledge tests, failed knowledge tests may be retaken the next business day, and Arizona issues CLPs/CDLs under FMCSA standards.
B.Assume private practice sites set the pass score
C.Ignore it if the tractor starts normally
D.Use the trailer hand valve as the main solution
Explanation: ADOT MVD requires at least 80 percent correct on CDL knowledge tests, failed knowledge tests may be retaken the next business day, and Arizona issues CLPs/CDLs under FMCSA standards.. ADOT MVD requires at least 80 percent correct on CDL knowledge tests, failed knowledge tests may be retaken the next business day, and Arizona issues CLPs/CDLs under FMCSA standards.
2In an Arizona CDL Combination Vehicles scenario, what should the driver do for Arizona CDL knowledge-test logistics?
A.Use a 70 percent passing target
B.Use ADOT MVD CDL information as the official state source and plan for the 80 percent passing standard.
C.Use the trailer hand valve as the main solution
D.Skip the outside inspection
Explanation: Use ADOT MVD CDL information as the official state source and plan for the 80 percent passing standard.. ADOT MVD requires at least 80 percent correct on CDL knowledge tests, failed knowledge tests may be retaken the next business day, and Arizona issues CLPs/CDLs under FMCSA standards.
3What problem is Arizona CDL knowledge-test logistics meant to prevent?
A.Retake a failed test the same session
B.Skip the outside inspection
C.relying on unofficial test rules or assuming a lower passing score
D.Rely on a private answer key instead of the CDL manual
Explanation: relying on unofficial test rules or assuming a lower passing score. ADOT MVD requires at least 80 percent correct on CDL knowledge tests, failed knowledge tests may be retaken the next business day, and Arizona issues CLPs/CDLs under FMCSA standards.
4Which detail should be checked for Arizona CDL knowledge-test logistics?
A.Assume private practice sites set the pass score
B.Rely on a private answer key instead of the CDL manual
C.Treat it as passenger-car driving only
D.80 percent passing score, next-business-day retake wait, and ADOT MVD administration
Explanation: 80 percent passing score, next-business-day retake wait, and ADOT MVD administration. ADOT MVD requires at least 80 percent correct on CDL knowledge tests, failed knowledge tests may be retaken the next business day, and Arizona issues CLPs/CDLs under FMCSA standards.
5Why is Arizona CDL knowledge-test logistics important on the Arizona CDL Combination Vehicles test?
A.Arizona administers the CLP process while FMCSA sets minimum CDL standards.
B.Use a 70 percent passing target
C.Treat it as passenger-car driving only
D.Ignore it if the tractor starts normally
Explanation: Arizona administers the CLP process while FMCSA sets minimum CDL standards.. ADOT MVD requires at least 80 percent correct on CDL knowledge tests, failed knowledge tests may be retaken the next business day, and Arizona issues CLPs/CDLs under FMCSA standards.
6Which statement is correct about Class A combination vehicle threshold?
A.Treat any pickup and small utility trailer as Group A
B.A Class A/Group A combination generally has a GCWR of 26,001 pounds or more when the towed unit has a GVWR over 10,000 pounds.
C.Ignore it if the tractor starts normally
D.Use the trailer hand valve as the main solution
Explanation: A Class A/Group A combination generally has a GCWR of 26,001 pounds or more when the towed unit has a GVWR over 10,000 pounds.. A Class A/Group A combination generally has a GCWR of 26,001 pounds or more when the towed unit has a GVWR over 10,000 pounds.
7In an Arizona CDL Combination Vehicles scenario, what should the driver do for Class A combination vehicle threshold?
A.Ignore the towed unit GVWR
B.Use the trailer hand valve as the main solution
C.Identify when the Combination Vehicles test is required for Group A/Class A operation.
D.Skip the outside inspection
Explanation: Identify when the Combination Vehicles test is required for Group A/Class A operation.. A Class A/Group A combination generally has a GCWR of 26,001 pounds or more when the towed unit has a GVWR over 10,000 pounds.
8What problem is Class A combination vehicle threshold meant to prevent?
A.Use passenger-car weight rules only
B.Skip the outside inspection
C.Rely on a private answer key instead of the CDL manual
D.confusing Class A combinations with straight trucks or light trailers
Explanation: confusing Class A combinations with straight trucks or light trailers. A Class A/Group A combination generally has a GCWR of 26,001 pounds or more when the towed unit has a GVWR over 10,000 pounds.
9Which detail should be checked for Class A combination vehicle threshold?
A.26,001-pound GCWR and over-10,000-pound towed-unit GVWR thresholds
B.Treat any pickup and small utility trailer as Group A
C.Rely on a private answer key instead of the CDL manual
D.Treat it as passenger-car driving only
Explanation: 26,001-pound GCWR and over-10,000-pound towed-unit GVWR thresholds. A Class A/Group A combination generally has a GCWR of 26,001 pounds or more when the towed unit has a GVWR over 10,000 pounds.
10Why is Class A combination vehicle threshold important on the Arizona CDL Combination Vehicles test?
A.Ignore the towed unit GVWR
B.The Combination Vehicles test supports Group A licensing decisions.
C.Treat it as passenger-car driving only
D.Ignore it if the tractor starts normally
Explanation: The Combination Vehicles test supports Group A licensing decisions.. A Class A/Group A combination generally has a GCWR of 26,001 pounds or more when the towed unit has a GVWR over 10,000 pounds.

About the Arizona CDL Combination Vehicles Exam

The Arizona CDL Combination Vehicles Test is the Class A knowledge test covering safe operation of tractor-trailer and other combination vehicles. It is based on the ADOT MVD Commercial Driver License Manual and FMCSA CDL standards. Topics include combination pre-trip inspection, fifth wheel and kingpin checks, coupling and uncoupling, landing gear, red emergency and blue service glad-hands, trailer air supply controls, trailer brake testing, safe right and left turns, off-tracking, backing, following distance, rollover prevention, trailer skids, jackknife recovery, and Arizona CLP logistics.

Questions

20 scored questions

Time Limit

No separate statewide time limit published by ADOT MVD

Passing Score

80%

Exam Fee

$25 Class A/B CLP fee before endorsements; skills and other fees may apply separately (Arizona Department of Transportation Motor Vehicle Division (ADOT MVD))

Arizona CDL Combination Vehicles Exam Content Outline

20%

Combination Inspection

Coupling area, fifth wheel mounting, locking jaws, kingpin, trailer apron, air and electrical lines, landing gear, trailer lights, tires, suspension, frame, brakes, and final walkaround

30%

Coupling and Uncoupling

Trailer height, alignment, backing under, tug test, visual lock check, high coupling, charging trailer air, raising landing gear, securing chocks, and uncoupling on firm level ground

20%

Trailer Air and Brake Systems

Emergency/supply and service lines, glad-hand seals, trailer air supply control, hand valve, tractor protection valve, trailer brake test, ABS warning lamps, leaks, and empty-trailer braking

30%

Safe Combination Driving

Off-tracking, right turns, left turns, trailer swing, backing, blind spots, lane changes, following distance, downgrades, crosswinds, rollovers, trailer skids, jackknife prevention, and cargo shift

How to Pass the Arizona CDL Combination Vehicles Exam

What You Need to Know

  • Passing score: 80%
  • Exam length: 20 questions
  • Time limit: No separate statewide time limit published by ADOT MVD
  • Exam fee: $25 Class A/B CLP fee before endorsements; skills and other fees may apply separately

Keys to Passing

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

Arizona CDL Combination Vehicles Study Tips from Top Performers

1Memorize the coupling sequence and explain why each step occurs before moving to practice questions
2Know high-coupling clues: wrong trailer height, closed jaws, failed tug test, and any gap between trailer apron and fifth wheel
3Keep air-line colors straight: red is emergency/supply, blue is service, and crossed glad-hands can leave trailer brakes unsafe
4Practice off-tracking and trailer swing scenarios until you can choose safe lane position for right turns, left turns, and backing
5Use the trailer hand valve mainly as a test control; normal stopping should use the foot brake so tractor and trailer brakes work together
6Review Arizona logistics separately: 80% passing score, next-business-day retake wait, 12-month CLP validity, 14-day CLP hold before skills testing, and $25 Class A/B CLP fee

Frequently Asked Questions

Who needs the Arizona CDL Combination Vehicles Test?

Arizona Class A applicants need Combination Vehicles knowledge because Group A covers combination vehicles with a qualifying GCWR and a towed unit over 10,000 pounds GVWR. Federal rules say an applicant who fails the combination vehicle portion must not be issued a Group A CLP or CDL.

What score do I need to pass?

ADOT MVD states that CDL knowledge tests require a minimum score of 80 percent. The federal CDL passing standard in 49 CFR 383.135 also requires at least 80 percent correct on each knowledge test.

How much does the Arizona Class A CLP cost?

ADOT MVD lists a Class A or B commercial learner permit with no endorsements at $25. Other costs can apply for skills testing, duplicates, medical certification, ELDT training, and endorsements.

What should I study for the Combination Vehicles test?

Study the ADOT MVD CDL manual Combination Vehicles material: coupling and uncoupling, fifth wheel and kingpin checks, trailer air and electrical lines, landing gear, combination pre-trip inspection, off-tracking, safe turns, backing, trailer skids, jackknife, rollover, and speed/space management.

Can I retake a failed Arizona CDL knowledge test?

Yes. ADOT MVD states applicants who fail CDL knowledge tests must wait until the next business day to retake any failed tests. The MVD FAQ notes unlimited knowledge-test attempts after applicable fees are paid.

Does Combination Vehicles replace the Air Brakes test?

No. Combination Vehicles covers tractor-trailer coupling, trailer behavior, and trailer air connections in context. If the vehicle has air brakes, an Air Brakes knowledge test is typically needed to avoid an air-brake restriction.