Ohio Combination Vehicles CDL Practice Test
Practice with real OH Combination Vehicles exam questions and detailed explanations. Rated 4.8 stars by 1,000+ drivers.
Written by CDL holders and exam prep experts · Updated April 2026
Free Questions
10
Passing Score
80%
Time Limit
No time limit specified
Prerequisites
General Knowledge and Air Brakes tests must be completed first
What is the Combination Vehicles Test?
The Combination Vehicles test is required to obtain a Class A CDL, which allows you to drive truck-trailer combinations where the trailer weighs more than 10,000 pounds. This test covers the skills and knowledge needed to safely operate tractor-trailers and other combination vehicles.
Required for Class A CDL (tractor-trailers)
Topic Breakdown
Coupling and Uncoupling
~6 questions
- Pre-coupling inspection procedures
- Proper coupling techniques
- Safe uncoupling procedures
Vehicle Inspection
~5 questions
- Trailer inspection procedures
- Fifth wheel and kingpin checks
- Air line and electrical connections
Driving Techniques
~5 questions
- Backing with trailers
- Turning and cornering safely
- Managing trailer swing
Safety Considerations
~4 questions
- Rollover prevention
- Brake usage and stopping distance
- Weight distribution effects
Free Practice Questions
10 questionsQuestion 1 of 10
Which statement is true of turning while hauling a long trailer combination.
Browse Ohio Combination Vehicles Questions
- 1. Which statement is true of turning while hauling a long trailer combination.
- 2. There are two things that a driver can do to prevent a rollover. They are: (1) keep the cargo as close to the ground as possible and (2):
- 3. Sudden turns or aggressive braking will have the greatest effect on which trailer?
- 4. Which task is NOT performed during the tractor protection valve test?
- 5. Glad hands are usually connecting which of these?
- 6. After you have coupled the trailer you should raise the landing gear by first using:
- 7. What is the purpose of the trailer air supply control?
- 8. What is the most common cause of a tractor-trailer jackknife?
- 9. The combination of which two things will greatly reduce the likelihood of a rollover?
- 10. Off-tracking or cheating causes which of these to follow the wider path while making a turn?
Study Tips for Ohio
- 1Memorize the 7-step coupling procedure: position, back slowly, secure, connect air lines, etc.
- 2Know trailer height limits: 13'6" maximum height on most roads
- 3Learn the crack-the-whip effect: sudden steering with trailers causes jackknifing
- 4Remember the 4-inch rule: trailer should be 4 inches higher than tractor when coupling
- 5Master weight distribution: 34,000 lbs max per tandem, 12,000 lbs max on steer axle
Ohio CDL Information
Age Requirements
Intrastate: 18+ · Interstate: 21+
CDL Renewal
Every 4 years
ELDT Required
Yes — ELDT (Entry-Level Driver Training) from FMCSA-registered provider
Ohio Bureau of Motor Vehicles (BMV)
Official CDL Portal →Career Opportunities
Frequently Asked Questions
You need to pass the Combination Vehicles test to obtain a Class A CDL, which allows you to drive truck-trailer combinations where the trailer weighs more than 10,000 pounds.
Combination Vehicles Study Resources
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