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200+ Free Nebraska CDL Combination Vehicles Practice Questions

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How do you perform the tug test after coupling?

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2026 Statistics

Key Facts: Nebraska CDL Combination Vehicles Exam

80%

Minimum federal passing score for each CDL knowledge test

49 CFR 383.135

14 days

Minimum Nebraska CLP holding period before CDL skills testing

Nebraska DMV CDL Testing

$60

Nebraska total fee for a 5-year commercial license document

Nebraska DMV Commercial and Restricted Commercial License Fees

26,001 lb

Nebraska/Federal Class A GCWR threshold when the towed unit exceeds 10,000 lb GVWR

Nebraska DMV Commercial Driver License

Nebraska Class A CDL applicants must understand combination vehicle handling and coupling before Group A privileges can be issued. Nebraska DMV uses the federal Class A threshold: GCWR of 26,001 pounds or more when the towed unit is over 10,000 pounds GVWR. FMCSA requires at least 80% correct on each knowledge test, and 49 CFR 383.135 bars issuance of a Group A CLP or CDL if the applicant fails the combination vehicle knowledge portion. 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, trailer skids, and jackknife recovery.

Sample Nebraska CDL Combination Vehicles Practice Questions

Try these sample questions to test your Nebraska 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.

1For the Nebraska Class A CDL combination vehicles test, what is a combination vehicle?
A.A straight truck with cargo loaded in the bed
B.A truck or tractor pulling one or more trailers
C.Any commercial vehicle with a GVWR over 10,000 lb
D.A vehicle with both gasoline and diesel engines
Explanation: For CDL testing, a combination vehicle is a truck or tractor pulling one or more trailers. Nebraska DMV uses the federal Class A/Group A framework for combinations, including tractor-semitrailers and other truck-trailer combinations.
2For combination-vehicle safety, which of the following is the most common combination vehicle on U.S. highways?
A.Tractor with a full trailer
B.Tractor-semi-trailer
C.Tractor pulling three trailers
D.Straight truck with a converter dolly
Explanation: The tractor-semi-trailer is the most common combination vehicle on U.S. highways. It consists of a tractor with a fifth wheel and a semi-trailer whose front end rests on the fifth wheel and is secured by the kingpin.
3What does GCWR stand for?
A.Gross Cargo Weight Rating
B.Gross Combination Weight Rating
C.General Combined Weight Reference
D.Government Commercial Weight Regulation
Explanation: GCWR is the Gross Combination Weight Rating - the total weight of the tractor plus trailer(s) plus cargo, fuel, and driver. A Class A CDL is required when GCWR is 26,001 lb or more and the towed unit has a GVWR over 10,000 lb.
4Under Nebraska and FMCSA CDL class rules, a Class A combination generally has GCWR of at least 26,001 pounds and a towed unit with GVWR over:
A.5,000 lb
B.8,000 lb
C.10,000 lb
D.12,000 lb
Explanation: Nebraska DMV lists Class A/combination operation using the federal threshold: GCWR of 26,001 pounds or more when the vehicle being towed has a GVWR over 10,000 pounds.
5On the Nebraska CDL combination test, what is off-tracking?
A.The trailer drifting sideways on a wet road
B.The rear wheels of the trailer following a tighter path than the tractor's front wheels in a turn
C.Loss of tire traction during heavy braking
D.The vehicle leaving its travel lane on a curve
Explanation: Off-tracking is the phenomenon where the rear wheels of the trailer follow a shorter, tighter path than the tractor's steer axle through a turn. Drivers must compensate by swinging wider so the trailer's rear wheels clear curbs and other objects.
6On a Nebraska CDL road scenario, you are making a right turn in a tractor-semi-trailer at a city intersection. Because of off-tracking, you should:
A.Turn the wheel as soon as the cab clears the curb
B.Drive farther into the intersection so the trailer's rear wheels clear the curb
C.Make the turn as tightly as possible to stay in your lane
D.Slow down and use the trailer hand valve to stabilize
Explanation: Because the trailer's rear wheels track inside the tractor's path, you must drive farther into the intersection before turning so the trailer's rear wheels do not climb the curb or strike pedestrians and signs. Watch for overhead clearance and keep an eye on the right mirror.
7For a Nebraska CDL combination vehicle, when making a left turn in a combination vehicle, you should:
A.Make the tightest left turn possible to clear faster
B.Start in the right-most lane available
C.Watch for vehicles passing on your left in the lane next to you
D.Use the trailer hand valve halfway through the turn
Explanation: When turning left in a combination vehicle, watch for vehicles or motorcycles that may try to pass on your left in the adjacent lane. Stay in the right turn lane long enough so other drivers do not mistakenly try to squeeze past on your left side.
8Compared to a straight truck, a combination vehicle's steering response is:
A.Faster and more direct
B.Delayed and requires smaller, earlier corrections
C.Identical
D.Only affected by trailer length, not response time
Explanation: In a combination vehicle the trailer effectively pushes the tractor in turns, so steering response is delayed. Drivers must make smaller, earlier corrections. Over-steering can produce a trailer swing or jackknife.
9On the Nebraska CDL combination test, what is a jackknife?
A.A loose connection between the kingpin and fifth wheel
B.The tractor and trailer fold against each other at the coupling
C.A type of converter dolly used with doubles
D.A skid in which all four trailer tires lose traction simultaneously
Explanation: A jackknife occurs when the tractor and trailer fold against each other at the coupling, usually because the tractor's drive wheels lock under braking on slick pavement, causing the trailer to push the rear of the tractor sideways.
10If you start to feel the trailer skidding and swinging out behind you, what is the correct response?
A.Apply the trailer hand valve to slow the trailer
B.Steer in the same direction as the trailer is swinging
C.Get off the brakes so the trailer wheels can roll and the trailer can return inline
D.Use the parking brake to lock the trailer in place
Explanation: A trailer skid is almost always caused by locked trailer brakes. The cure is to release the brakes so the wheels can roll again, which lets the trailer return inline. Continuing to brake - or applying only the trailer hand valve - makes it worse.

About the Nebraska CDL Combination Vehicles Exam

The Nebraska CDL Combination Vehicles Test is the Class A knowledge portion for applicants who need to operate tractor-trailers and other Group A combination vehicles. Nebraska CDL Manual Section 6 covers safe combination driving, rollover risk, off-tracking, backing, trailer skids, combination air systems, ABS, coupling and uncoupling, fifth wheel and kingpin checks, landing gear, trailer air and electrical lines, trailer brakes, and combination vehicle inspection.

Assessment

Multiple-choice CDL knowledge test for Group A/Class A combination vehicle applicants; questions are based on Nebraska CDL manual Section 6 and FMCSA CDL standards.

Time Limit

No separate public time limit published by Nebraska DMV or FMCSA

Passing Score

At least 80% correct on each CDL knowledge test

Exam Fee

Nebraska commercial license fee is $60 total for a 5-year document; $49 total for more than 3 but not more than 4 years; $38 total for more than 2 but not more than 3 years; $27 total for more than 1 but not more than 2 years; $16 total for 1 year or less; replacement is $16 total; change of class, endorsement, or restriction is $15 total. Third-party CDL skills testers may charge separate fees. (Nebraska Department of Motor Vehicles)

Nebraska 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

Air/electric connectors, fifth wheel mounting, kingpin, apron gap, locking jaws, release arm, sliding fifth wheel pins, landing gear, trailer suspension, tires, wheels, lights, and cargo condition.

How to Pass the Nebraska CDL Combination Vehicles Exam

What You Need to Know

  • Passing score: At least 80% correct on each CDL knowledge test
  • Assessment: Multiple-choice CDL knowledge test for Group A/Class A combination vehicle applicants; questions are based on Nebraska CDL manual Section 6 and FMCSA CDL standards.
  • Time limit: No separate public time limit published by Nebraska DMV or FMCSA
  • Exam fee: Nebraska commercial license fee is $60 total for a 5-year document; $49 total for more than 3 but not more than 4 years; $38 total for more than 2 but not more than 3 years; $27 total for more than 1 but not more than 2 years; $16 total for 1 year or less; replacement is $16 total; change of class, endorsement, or restriction is $15 total. Third-party CDL skills testers may charge separate fees.

Keys to Passing

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

Nebraska CDL Combination Vehicles Study Tips from Top Performers

1Memorize the Nebraska/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 or air lines are crossed.
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 Nebraska CDL Combination Vehicles Test?

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

What does Nebraska Class A CDL cover?

Nebraska DMV lists Class A/combination operation as a combination vehicle with GCWR of 26,001 pounds or more when the GVWR of the vehicle being towed is over 10,000 pounds.

What does the Nebraska 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. Nebraska CDL Manual Section 6 says drivers should also study Section 7 if they need to pass the doubles and triples test, and the T endorsement is separate.

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

Yes. Nebraska DMV states drivers must have a valid Commercial Learner's Permit and hold it for at least 14 days before taking a CDL skills test.

What happens if I fail a Nebraska CDL written test?

Nebraska DMV states at least a one-day waiting period is required to retest when written or skills tests are failed.