Free CDL Combination Practice Test 2025
Combination drivers earn up to $70,000/year - 50% more than standard CDL jobs. Our free practice tests help you pass the A endorsement exam on your first try.
30 questions, 80% to pass
Combination Endorsement at a Glance
Key facts about the test and the process to get your A endorsement
30
Questions
80%
Passing Score
1-2 weeks
Time to Complete
Free Combination Practice Test
30 real exam-like questions with instant feedback. See how ready you are!
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How to Get Your Combination Endorsement
Here's the step-by-step process to add the A endorsement to your CDL.
1
Meet Basic Requirements
You must be at least 18 (21 for interstate) with a valid driver's license. The Combination Vehicles test is part of obtaining your Class A CDL.
2
Study the CDL Manual
Focus on Section 6: Combination Vehicles. Learn about coupling/uncoupling, air brakes connections, trailer inspection, and safe driving techniques.
3
Pass the Written Test
Take the Combination Vehicles knowledge test at your DMV. This is required for Class A CDL and covers tractor-trailer operation.
4
Pass the Class A CDL Skills Test
The Class A CDL skills test includes coupling/uncoupling, pre-trip inspection, basic control skills, and on-road driving in a combination vehicle. This is the standard CDL road test.
Official Resources
Government websites for Combination endorsement requirements
Want More Practice?
Continue practicing with state-specific Combination tests based on your CDL manual.
Alabama AL Alaska AK Arizona AZ Arkansas AR California CA Colorado CO Connecticut CT Delaware DE District of Columbia DC Florida FL Georgia GA Hawaii HI Idaho ID Illinois IL Indiana IN Iowa IA Kansas KS Kentucky KY Louisiana LA Maine ME Maryland MD Massachusetts MA Michigan MI Minnesota MN Mississippi MS Missouri MO Montana MT Nebraska NE Nevada NV New Hampshire NH New Jersey NJ New Mexico NM New York NY North Carolina NC North Dakota ND Ohio OH Oklahoma OK Oregon OR Pennsylvania PA Rhode Island RI South Carolina SC South Dakota SD Tennessee TN Texas TX Utah UT Vermont VT Virginia VA Washington WA West Virginia WV Wisconsin WI Wyoming WY
Frequently Asked Questions
What is the Combination Vehicles test?
The Combination Vehicles test is a knowledge test required for Class A CDL. It covers the skills and knowledge needed to safely operate a tractor-trailer or other combination vehicle.
Do I need this test for Class A CDL?
Yes! The Combination Vehicles test is mandatory for Class A CDL. You cannot get a Class A license without passing this test. It's in addition to General Knowledge and Air Brakes.
What is coupling and uncoupling?
Coupling is connecting the tractor to the trailer. Uncoupling is disconnecting them. You must know the proper procedures for both, including checking the fifth wheel, kingpin, and air connections.
What is the fifth wheel?
The fifth wheel is the coupling device on the tractor that connects to the trailer's kingpin. Proper coupling requires the fifth wheel jaws to close around the kingpin shank with no space between the upper and lower plates.
How many questions are on the Combination test?
20-30 questions depending on state, multiple choice. You need 80% to pass. This test focuses on tractor-trailer specific topics.
What topics are covered?
The test covers: coupling and uncoupling procedures, air brake connections (glad hands), trailer inspection, rollover prevention, jackknifing, and safe following distance for combination vehicles.
What is jackknifing?
Jackknifing occurs when the trailer pushes the tractor, causing them to fold together like a jackknife. It's caused by improper braking or loss of traction. Watch your mirrors to catch it early.
Is there a skills test for combination vehicles?
Yes! For Class A CDL, you must pass a skills test that includes coupling/uncoupling demonstration, pre-trip inspection, basic control maneuvers, and on-road driving in a combination vehicle.
How much do Class A CDL drivers earn?
Class A CDL holders earn an average of $70,000/year. OTR (Over The Road) drivers can earn $80,000+ with experience. Specialized loads pay even more.
What class of CDL requires this test?
Only Class A CDL requires the Combination Vehicles test. Class B and C licenses don't require it since they don't involve pulling trailers over 10,000 lbs.
What Test-Takers Say
"My Combination test was almost word for word from the study tests here. Took only 2 minutes to get 100%."
"Used this for my Texas Combination test. Every single one of the 30 questions were on the practice test. Perfect score."
"Was at the DMV for 30 minutes. Got 30/30. Way better than paying $500 for a trucking school course."
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