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200+ Free Wisconsin CDL Combination Practice Questions

Pass your Wisconsin CDL Combination Vehicles Test exam on the first try — instant access, no signup required.

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Before uncoupling, what must be done to the trailer?

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2026 Statistics

Key Facts: Wisconsin CDL Combination Exam

20

Wisconsin A - Combined Vehicles knowledge-test questions

Wisconsin DMV CDL requirements page

80%

Minimum passing grade for Wisconsin CDL knowledge tests

Wisconsin DMV CDL requirements page and 49 CFR §383.135

$0

Wisconsin knowledge-test fee

Wisconsin DMV fee schedule

$30

Wisconsin Commercial Learner Permit fee

Wisconsin DMV fee schedule

180 days

Wisconsin CLP validity

Wisconsin DMV CDL requirements page

14 days

Minimum Wisconsin CLP holding period before road tests

Wisconsin DMV CDL requirements page

Wisconsin Class A CDL applicants must pass Combination Knowledge written testing, usually alongside General Knowledge and any required Air Brake or endorsement tests. Study Wisconsin Commercial Driver Manual combination-vehicle material and FMCSA CDL Manual Section 6: fifth wheel and kingpin coupling, tug and visual checks, air/electric lines, landing gear, trailer brakes, off-tracking, rollover, backing, trailer skids, jackknife recovery, and safe speed and space management. Federal CDL rules require at least 80% correct on each knowledge test, and failing the combination portion blocks Group A CLP/CDL issuance.

Sample Wisconsin CDL Combination Practice Questions

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

1Which Wisconsin CDL written test is required for drivers seeking Class A combination-vehicle privileges?
A.The Combination Knowledge written test
B.Use only the trailer hand valve for normal stopping
C.Skip the visual inspection if the vehicle moves during a tug test
D.Drive at normal speed and correct problems after the trip
Explanation: Wisconsin says Class A applicants must pass Combination Knowledge written testing, plus General Knowledge and any applicable Air Brake or endorsement tests. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
2In Wisconsin CDL classification rules, Class A generally means GCWR of 26,001 pounds or more when the towed unit is over what GVWR?
A.Use only the trailer hand valve for normal stopping
B.10,000 pounds
C.Skip the visual inspection if the vehicle moves during a tug test
D.Drive at normal speed and correct problems after the trip
Explanation: Wisconsin lists Class A as a qualifying combination when the towed vehicle has GVWR over 10,000 pounds. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
3What does GCWR stand for?
A.Use only the trailer hand valve for normal stopping
B.Skip the visual inspection if the vehicle moves during a tug test
C.Gross Combination Weight Rating
D.Drive at normal speed and correct problems after the trip
Explanation: GCWR is Gross Combination Weight Rating, the combined rating used for tractor-trailer and other combination classifications. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
4What does GVWR stand for?
A.Use only the trailer hand valve for normal stopping
B.Skip the visual inspection if the vehicle moves during a tug test
C.Drive at normal speed and correct problems after the trip
D.Gross Vehicle Weight Rating
Explanation: GVWR is Gross Vehicle Weight Rating, the rating assigned to a single vehicle or towed unit. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
5What minimum score is required on CDL knowledge tests under 49 CFR 383.135?
A.80 percent correct
B.Use only the trailer hand valve for normal stopping
C.Skip the visual inspection if the vehicle moves during a tug test
D.Drive at normal speed and correct problems after the trip
Explanation: Federal CDL rules require at least 80 percent correct on each knowledge test. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
6Who administers Wisconsin CDL and CLP testing logistics?
A.Use only the trailer hand valve for normal stopping
B.Wisconsin Department of Transportation Division of Motor Vehicles
C.Skip the visual inspection if the vehicle moves during a tug test
D.Drive at normal speed and correct problems after the trip
Explanation: FMCSA sets federal minimum standards, but Wisconsin Department of Transportation Division of Motor Vehicles administers Wisconsin CDL testing. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
7What is a combination vehicle?
A.Use only the trailer hand valve for normal stopping
B.Skip the visual inspection if the vehicle moves during a tug test
C.A truck or tractor pulling one or more trailers
D.Drive at normal speed and correct problems after the trip
Explanation: A combination vehicle is a powered unit pulling one or more trailers, such as a tractor-semitrailer. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
8What extra area must be inspected on a combination vehicle compared with a straight truck?
A.Use only the trailer hand valve for normal stopping
B.Skip the visual inspection if the vehicle moves during a tug test
C.Drive at normal speed and correct problems after the trip
D.The coupling area between tractor and trailer
Explanation: Combination inspections add the fifth wheel, kingpin, locking jaws, air lines, electrical cord, landing gear, and trailer condition. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
9Why must trailer lights be checked after coupling?
A.To confirm other traffic can see trailer clearance, turns, brake lights, and hazards
B.Use only the trailer hand valve for normal stopping
C.Skip the visual inspection if the vehicle moves during a tug test
D.Drive at normal speed and correct problems after the trip
Explanation: The electrical connection must operate required trailer lights and signals. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.
10Before driving, what should be true of the landing gear?
A.Use only the trailer hand valve for normal stopping
B.It is fully raised and the handle is secured
C.Skip the visual inspection if the vehicle moves during a tug test
D.Drive at normal speed and correct problems after the trip
Explanation: Landing gear must be raised completely and secured before the combination moves. Source basis: Wisconsin DMV CDL/CLP guidance, the Wisconsin Commercial Driver Manual, FMCSA CDL Manual Section 6, and 49 CFR Part 383.

About the Wisconsin CDL Combination Exam

The Wisconsin CDL Combination Vehicles Test is the written knowledge test for drivers seeking Class A commercial driving privileges for qualifying tractor-trailer and other combination vehicles. Wisconsin requires the Combination Knowledge written test for Class A applicants and points drivers to the Wisconsin Commercial Driver Manual, while FMCSA Part 383 supplies federal Group A vehicle standards and the 80% minimum knowledge-test passing score. The tested knowledge centers on combination inspection, fifth wheel and kingpin coupling, air and electrical lines, landing gear, trailer brakes, off-tracking, rollover prevention, safe turns, backing, trailer skids, jackknife recovery, speed, and space management.

Assessment

Wisconsin DMV multiple-choice CDL knowledge test for Class A applicants; Wisconsin lists A - Combined Vehicles as 20 questions explained by Commercial Driver Manual Section 6.

Time Limit

Wisconsin says CDL knowledge tests take at least 1 to 1.5 hours; no separate Combination Vehicles-only time limit is published

Passing Score

80% or more correct answers

Exam Fee

$0 for Wisconsin knowledge tests; $30 Wisconsin Commercial Learner Permit fee when obtaining a CLP (Wisconsin Department of Transportation Division of Motor Vehicles)

Wisconsin CDL Combination Exam Content Outline

Core section

Driving Combination Vehicles Safely

Rollover risk, high center of gravity, steering response, rearward amplification, off-tracking, wide turns, low-clearance railroad crossings, backing, trailer swing, and space management.

Core section

Combination Vehicle Air Brakes

Trailer hand valve, tractor protection valve, trailer air supply control, service and emergency lines, glad hands, crossed-line faults, trailer ABS, leaks, and trailer brake tests.

Core section

Coupling and Uncoupling

Fifth wheel plate and jaws, kingpin, trailer height, high coupling, tug test, visual inspection, air/electrical line connection, landing gear, chocks, and safe release sequence.

Core section

Inspecting Combination Vehicles

Coupling area, trailer frame, suspension, brakes, tires, lights, reflectors, landing gear, cargo doors, load security, and post-coupling final checks.

Licensing section

Wisconsin CDL and FMCSA Rules

Wisconsin Class A combination requirements, CLP fees and validity, 14-day CLP holding period, FMCSA state agency role, Group A vehicle rules, and federal 80% passing standard.

How to Pass the Wisconsin CDL Combination Exam

What You Need to Know

  • Passing score: 80% or more correct answers
  • Assessment: Wisconsin DMV multiple-choice CDL knowledge test for Class A applicants; Wisconsin lists A - Combined Vehicles as 20 questions explained by Commercial Driver Manual Section 6.
  • Time limit: Wisconsin says CDL knowledge tests take at least 1 to 1.5 hours; no separate Combination Vehicles-only time limit is published
  • Exam fee: $0 for Wisconsin knowledge tests; $30 Wisconsin Commercial Learner Permit fee when obtaining a CLP

Keys to Passing

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

Wisconsin CDL Combination Study Tips from Top Performers

1Start with the Wisconsin Commercial Driver Manual and focus on combination-vehicle material before drilling practice questions.
2Turn the coupling sequence into a checklist: inspect fifth wheel, align, check trailer height, back under, tug test, visual lock check, connect lines, charge air, test brakes, raise landing gear, and remove chocks.
3Memorize red emergency/supply and blue service glad-hand functions, then practice crossed-line and leak scenarios.
4Study control risks as cause-and-effect: speed plus high center of gravity increases rollover, hard braking can lock trailer wheels, and off-tracking makes trailer wheels cut inside turns.
5Before testing, confirm Wisconsin CLP documents, fees, medical self-certification, ELDT status, and walk-in knowledge-test rules on the DMV CDL page.

Frequently Asked Questions

Who needs the Wisconsin CDL Combination Vehicles test?

Drivers seeking Wisconsin Class A privileges for qualifying combination vehicles need the A - Combined Vehicles knowledge test unless a Wisconsin transfer or waiver rule applies. Wisconsin lists this as a 20-question test from Section 6 of the Commercial Driver Manual.

What score do I need to pass?

Wisconsin says a passing grade is 80% or more correct answers. Federal CDL rules in 49 CFR §383.135 also require at least 80% correct on each knowledge test.

How much does the Wisconsin combination knowledge test cost?

Wisconsin lists CDL knowledge tests at $0. The fee schedule separately lists a $30 Commercial Learner Permit fee for Class A, B, or C and CDL/license transaction fees.

How long does the Wisconsin CDL combination test take?

Wisconsin does not publish a separate time limit for only the Combination Vehicles test. Its CDL requirements page tells applicants that CDL knowledge tests take at least 1 to 1.5 hours and to arrive with enough time before the DMV service center closes.

What topics are on the Wisconsin combination test?

Study combination-vehicle inspection, fifth wheel and kingpin coupling, trailer height, tug and visual checks, air and electrical lines, landing gear, trailer brake controls, off-tracking, rollover, safe turns, backing, trailer skids, jackknife recovery, and speed/space management.

How long must I hold a Wisconsin CLP before road testing?

Wisconsin says the Commercial Learner Permit is valid for 180 days and must be held for 14 days before taking the road tests.