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  • 0  (4 mistakes allowed to pass)

Free ID CDL School Bus Endorsement Practice Test 2025

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2025 ID commercial driver's license manual
  • Triple-checked for accuracy
  • Updated for July 2025

Welcome to our Idaho CDL School Bus Endorsement Practice Test, an intuitive tool designed to prepare you for this career path. It is available online, 24/7, so you can use it anytime, anywhere in the world. There are 20 multiple-choice questions based on the Idaho Commercial Driver’s License Manual (Idaho CDL Handbook 2025), an official resource published by the Department of Motor Vehicles (DMV).

Unlike other practice tests that only reveal your score at the end, ours updates in real time, giving you insight into your performance. If you make a mistake, we will point it out as soon as it occurs and provide a detailed explanation that helps you understand the reasoning behind the correct answer. Please pay attention to this feedback and proceed to the next question only after you understand why your answer was incorrect. For future reference, we recommend noting this feedback in a notebook or notebook app so you can revisit the material during your practice sessions.

Accuracy is important when studying commercial driving theory. We regularly update this practice test (most recently for July 2025) to reflect the latest changes brought by DMV rules or state law. (Aspiring school bus drivers should still check the official ID DMV website for the most up-to-date information.)

Digital eye strain is a common problem during long study sessions, often caused by staring at a screen without taking regular breaks. To reduce discomfort, try lowering your screen brightness and setting reminders to take frequent breaks from studying. If you have difficulty reading the text, open the test settings menu and use the slider to increase the font size. Make the text bigger until you can read the questions and answer choices comfortably.

Start today and dedicate the following days to studying the basic aspects of commercial driving theory. The official commercial driver’s license manual will teach you about pre-trip inspections, the air braking system, and the safe operation of school buses. Use this resource alongside our Idaho CDL School Bus Endorsement Practice Test to boost your learning potential and ace the official school bus written knowledge exam on your first attempt.

ID commercial driver's license
  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Triple-checked for accuracy

What you need to know

5 out of 5 • 2 votes
5 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

What to expect on the actual ID DMV exam

20

questions

16

correct answers to pass

80%

passing score

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Since our foundation in 2010, Driving-Tests.org has led the way in online driver's education, with over a decade of experience. Our dedicated experts, bringing together more than 50 years of collective expertise, have established us as the largest non-governmental organization in the U.S. solely focused on driver education. We go beyond the official manuals, offering unique interactive experiences and support like audio guides and an AI Assistant, to cater to different learning styles and needs.
Helping hundreds of thousands to ace their tests, our resources have earned a 4.7-star rating from over 14,500 reviews. Our goal is to make your path to becoming a confident driver as straightforward and effective as possible.

List of questions (classic view)

  1. Which of the following statements about the special dangers of loading and unloading is true?
  2. After you decide on the best type of evacuation, what must you do next?
  3. While you're loading students, if you cannot account for a student, what should you do?
  4. A passive railroad crossing
  5. During your pre-trip vehicle inspection test, make sure that
  6. What color are all school buses painted?
  7. Which of the following statements is true about students who must cross in front of the bus after exiting it?
  8. You should adjust the outside left and right side flat mirrors so you can see
  9. Which of the following statements about evacuation procedures is true?
  10. When unloading students at a school, you should
  11. Immediately after stopping, you should first
  12. In addition to spare electrical fuses (if equipped), three reflective triangles, and a working fire extinguisher, emergency equipment for a school bus also includes
  13. For up to ______ of parents, the school bus driver is the only school official they ever meet.
  14. Before you proceed through a railroad crossing, make sure that your bus will have enough containment (the space on the opposite side of the crossing) to completely clear the railroad tracks. As a general rule, adequate containment is
  15. Which of the following will confirm that your bus is equipped with an antilock braking system (ABS)?
  16. Antilock brakes
  17. You should adjust the left and right side crossover mirrors so you can see
  18. The overhead inside rear-view mirror is used to
  19. You MUST evacuate everyone from your school bus if
  20. The blind spot behind the school bus may extend up to ________, depending on the length and width of the bus.
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