All your missed questions are saved
automatically for extra practice.
It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All Plans| 90-100 | => | 67% |
| 80-89 | => | 33% |
| 70-79 | => | 0% |
| 60-69 | => | 0% |
| <60% | => | 0% |
Before our CDL School Bus practice test series was created, drivers often found learning to drive a school bus unnecessarily complicated. (After all, you’re not trying to make Maytag Blue Cheese.) You would prefer a study method that allows you to learn the essential skills in a time-efficient manner. The challenges of adding an “S” endorsement to your Iowa commercial driver’s license (CDL) are less daunting with our innovative study method. This third free CDL School Bus practice test helps you accelerate your learning process and gain confidence in your ability to drive a school bus.
Our CDL School Bus practice test introduces you to an effective strategy for overcoming your specific learning difficulties. You must meet several requirements to drive a school bus, including passing an official School Bus knowledge test, undergoing a medical examination, submitting to a background check, having a Passenger (P) endorsement on your CDL, and passing a skills test demonstrating your ability to drive this type of vehicle. (Please keep in mind that some jurisdictions may have additional requirements.) You must correctly answer at least 80% of the 20 questions on the official knowledge test to pass. Using questions resembling those on the official knowledge test, the practice test helps you identify your most critical misunderstandings and provides the information to eliminate them.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
Keeping you engaged in its teachings, this CDL School Bus practice test gives you an active role in increasing your driving skills. This approach is the reason that {active_now} Iowa residents are choosing the practice test over more passive study methods this exact moment. If you submit an incorrect answer, the practice immediately provides a thorough explanation of the correct one. This information is presented in easily understood language and shows how it can be applied to various driving scenarios that may appear on the official knowledge test. The practice test prepares you for the most difficult questions and increases your chances of passing the official knowledge test on your first attempt. You can be certain of the information provided by the practice test because it comes directly from the most recent Iowa DOT CDL manual (Iowa CDL Handbook 2026). The CDL manual contains the most accurate and authoritative information available. You could be the next success story among the 585 Iowa residents who have used the practice test this week to achieve their learning objectives.
The Fire Runner takes you on a ride through multiple loops, but you’ll find a straightforward path to professional driving skills by using the practice tests at https://driving-tests.org/iowa/ia-cdl-practice-test/.
Driver’s Ed is - nobody wants to set foot inside the DOT. That’s why millions of learners trust us for simple, visual, effective prep.
We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
We build our practice questions from the current 2026 IA Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with DOT.
