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Based on official Iowa exam questions

IA CDL School Bus Test 2025

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

Preparing for the School Bus section of the IA DMV CDL skills test can seem overwhelming. You know you have to ace it to drive a school bus in Iowa, so your entire livelihood depends on it. You have studied the Iowa CDL manual over and over again, but you need to put your skills to the test to see if you have got what it takes to pass. You can do just that with the IA CDL School Bus Practice Test. With questions pulled straight from the official Iowa CDL manual, the practice test has the same type of questions that you’ll find on the official exam at the DMV.

Gauge Your Knowledge

Begin by using the CDL School Bus Practice Test to determine what you know. The 20-question multiple-choice quiz gives you the option of skipping questions that you don’t know. Skip all of the questions that you don’t know, making a note of the ones that you skip. This will allow you to assess your starting point. Then, you’ll know how much studying you need to do before you go to the DMV to take your test.

After you have your starting point, study once again. Study up, and once you feel like you have learned some more information, take the practice test once again. Skip the questions that you are unsure of again and then get your score. Continue to do this until you are comfortable with all the questions on the test.

Scoring the Practice Test

Along with providing questions, the Iowa CDL School Bus Practice Test is scored the same way as the official exam is. You can find out if you would pass the official test when you take the practice test.

It’s time to see how prepared you are for the official test. Find out if you’re ready to go to the DMV and get your endorsement. It all starts with the practice test.

5 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

More IA DOT written exam resources

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