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200+ Free Ohio CDL Combination Practice Questions

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

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How do you perform the tug test after coupling?

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2026 Statistics

Key Facts: Ohio CDL Combination Exam

100

Practice Questions

Open Exam Prep question bank

80%

Minimum CDL Knowledge Passing Score

49 CFR 383.135

$31.50

Ohio CDL Temporary Permit

Ohio BMV Fees

12 months

Ohio CLP Validity

Ohio BMV Commercial Driver - CDL

Ohio Class A CDL applicants need combination-vehicle knowledge for qualifying tractor-trailer and other combination operations. Ohio BMV lists Class A as multiple vehicles with GCWR of 26,001 or more and a towed unit GVWR of 10,001 or more, directs applicants to driver exam stations for written tests, and requires knowledge tests for each vehicle class and endorsement. FMCSA Part 383 requires combination-vehicle drivers to know coupling and uncoupling, combination inspection, safe operation, and air brakes, and 49 CFR 383.135 requires at least 80% correct on each CDL knowledge test. Ohio BMV lists a $31.50 CDL temporary permit, first CDL fees of $46.50 for 4 years or $92.00 for 8 years, and state-owned skills-test receipt fees of $10 pre-trip, $10 basic, and $30 road test.

Sample Ohio CDL Combination Practice Questions

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

1For an Ohio Class A CDL applicant, 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. A combination vehicle is a truck or tractor pulling one or more trailers. Common examples include the tractor-semi-trailer, doubles (tractor with two trailers), and triples (tractor with three trailers). A straight truck has no separate trailer and is not a combination vehicle.
2On the Ohio CDL Combination Vehicles test, 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. 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.
4A Class A CDL is required when the combination has a GCWR of at least 26,001 lb AND the towed unit has a GVWR over:
A.5,000 lb
B.8,000 lb
C.10,000 lb
D.12,000 lb
Explanation: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. A Class A CDL is required for combinations with a GCWR of 26,001 lb or more provided the towed unit (trailer) has a GVWR over 10,000 lb. Below that threshold a Class B may apply.
5What 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. 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.
6You 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. 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 an Ohio Class A CDL applicant, 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. 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.
8On the Ohio CDL Combination Vehicles test, compared 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. 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.
9What 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. 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: Ohio BMV's CDL manual listing for HSY 7605 and FMCSA combination-vehicle standards support this answer. 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 Ohio CDL Combination Exam

The Ohio CDL Combination Vehicles Test is the written knowledge test for Ohio drivers seeking Class A/Group A commercial driving privileges. Ohio BMV sends CDL applicants to driver exam stations for written tests, lists Commercial Driver License Manual HSY 7605 in its official forms library, and uses federal FMCSA standards for CDL licensing. The combination material emphasizes driving tractor-trailer combinations safely, rollover risk, off-tracking, low-clearance crossings, backing, trailer air-brake controls, glad hands, crossed lines, tractor protection valves, ABS, coupling and uncoupling, fifth wheel and kingpin checks, landing gear, and combination-vehicle inspection.

Assessment

Multiple-choice CDL knowledge test for Ohio Class A/Group A combination applicants; the combination section covers driving combinations safely, trailer air-brake controls, ABS, coupling and uncoupling, and inspecting combinations.

Time Limit

No universal Ohio BMV time limit published for the Combination Vehicles knowledge test

Passing Score

At least 80% correct on each CDL knowledge test; failing the combination-vehicle portion prevents Group A CLP/CDL issuance under 49 CFR 383.135

Exam Fee

$31.50 CDL temporary permit; $46.50 first 4-year CDL or $92.00 first 8-year CDL; state-owned CDL skills test receipt is $10 pre-trip, $10 basic, and $30 road test (Ohio Bureau of Motor Vehicles (Ohio BMV))

Ohio 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, 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, 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

Ohio CDL and FMCSA Rules

Ohio Class A commercial license type, BMV permit/license/skills-test fees, Ohio testing locations, FMCSA Group A rules, and federal 80% knowledge-test passing standard.

How to Pass the Ohio CDL Combination Exam

What You Need to Know

  • Passing score: At least 80% correct on each CDL knowledge test; failing the combination-vehicle portion prevents Group A CLP/CDL issuance under 49 CFR 383.135
  • Assessment: Multiple-choice CDL knowledge test for Ohio Class A/Group A combination applicants; the combination section covers driving combinations safely, trailer air-brake controls, ABS, coupling and uncoupling, and inspecting combinations.
  • Time limit: No universal Ohio BMV time limit published for the Combination Vehicles knowledge test
  • Exam fee: $31.50 CDL temporary permit; $46.50 first 4-year CDL or $92.00 first 8-year CDL; state-owned CDL skills test receipt is $10 pre-trip, $10 basic, and $30 road 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

Ohio CDL Combination Study Tips from Top Performers

1Start with Ohio CDL Manual Section 6 and make a checklist for coupling, tug test, visual lock check, air/electric lines, brake tests, and landing gear.
2Memorize red emergency/supply and blue service glad-hand functions, then practice crossed-line and air-leak fault scenarios.
3Draw the fifth wheel, kingpin, locking jaws, apron, release arm, and landing gear so coupling questions become visual instead of memorized.
4Practice off-tracking and right-turn scenarios by focusing on trailer rear wheels, not only the tractor cab.
5Treat rollover, trailer skid, and jackknife questions as speed-and-traction questions: slow before curves, brake gently, and keep wheels rolling.
6Review Ohio licensing logistics separately so state fee, CLP validity, and testing-location questions do not distract from Section 6 safety knowledge.

Frequently Asked Questions

Who needs the Ohio CDL Combination Vehicles test?

Ohio drivers seeking Class A/Group A privileges for qualifying combination vehicles need combination-vehicle knowledge. Ohio BMV describes Class A as multiple vehicles with GCWR of 26,001 or more and the towed unit GVWR of 10,001 or more; FMCSA defines Group A similarly for combinations with a towed unit over 10,000 pounds.

What score do I need to pass?

49 CFR 383.135 requires at least 80% correct on each CDL knowledge test. The same rule says an applicant who fails the combination-vehicle portion must not be issued a Group A CLP or CDL.

What topics are on the Ohio combination test?

The combination content covers coupling and uncoupling, fifth wheel and kingpin checks, landing gear, combination inspection, off-tracking, wide turns, rollover risk, backing, trailer skids, jackknife recovery, trailer air supply, glad hands, tractor protection valves, and trailer brake tests.

How much does Ohio CDL testing cost?

Ohio BMV lists a $31.50 CDL temporary permit, first CDL fees of $46.50 for 4 years or $92.00 for 8 years, and state-owned skills-test receipt fees of $10 pre-trip inspection, $10 basic test, and $30 road test. The fee page does not list a separate Combination Vehicles-only knowledge-test fee.

Where do I take Ohio CDL knowledge tests?

Ohio BMV says CDL written tests are taken at driver exam stations. Skills testing is handled at CDL skills/testing locations, and license issuance is completed through deputy registrar license agencies or qualifying online renewal channels.