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Based on official Iowa exam questions

IA CDL Combination Vehicles Practice Test 2025

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements.

Practice makes perfect when it comes to taking the Iowa CDL Combination Vehicles test. Do not go in blind and take the real test without trying the practice tests here first. When you take your test at the DMV, your answers will be recorded and part of your permanent record. Give yourself the opportunity to succeed by taking the practice test first. That way, you will have all the knowledge you need to fly through the real test with ease. Then, you will get your CDL Combination Vehicles endorsement without a problem.

Taking Your Practice Test

The practice test is designed to closely resemble the official CDL Combination Vehicles test. Each question is taken from the official Iowa CDL manual and closely resembles the questions on the real test. This gives you the experience necessary to master the questions before you sit for the actual test. You can’t get this type of information by simply studying for the test.

Because the practice test closely resembles the actual test, it is essential that you pay close attention to each of the 20 questions. You might have some trouble from time to time, and that is OK. That is actually the point of a practice test. Simply note down the number of the troublesome question and then study that subject some more. Then, retake the test. The great thing about a practice test is you can take it as often as you would like before you go to the DMV to take the real thing.

Taking the Official Test

When you’re finally ready to take the official test, you will need to go to the DMV. Remember everything you learned from your IA Combination Vehicles practice test, and don’t be afraid to take the test one more time if necessary. Then, go into the DMV with confidence, knowing that you’re going to do well on the test.

Good luck with your practice test! Remember that as long as you use the practice test as a guide, you have the information necessary to obtain your endorsement. You are well on your way to achieving your goals!

9 min to complete
Available in EN and ES
IA commercial driver's license
Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
This test is a Premium member exclusive. You'll get

All 650 exam-like questions specific to Iowa

Interactive learning with AI personal tutor

Unique 360° Virtual Road Simulations

Get your money back if you don’t pass

Authored and curated by Steven Litvintchouk, M.S.

Chief Educational Researcher (ACES member)
Methodology & Editorial Policy
Last verified for accuracy: November 2025 (reviewed weekly)

What to expect on the actual IA permit test

20

questions

16

correct answers to pass

80%

passing score

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