- Updated for January 2025
- Based on 2025 CO commercial driver's license manual
Free CO CDL School Bus Practice Test 2025
The School Bus (S) endorsement allows drivers to operate school buses with a capacity of up to 15 occupants, including themselves. Those looking to drive larger school buses, such as the Types B, C and D models, must acquire both the S endorsement and a Passenger Vehicles (P) endorsement on their Commercial Driver’s License (CDL). These endorsements are granted after passing their respective knowledge tests as well as a skills test in a school bus. For the School Bus endorsement, aspiring school bus drivers must also complete a formal training program and pass a criminal background check.
If this process feels complicated, try to break it down into steps and adopt a smarter approach. It’s not difficult to pass the CDL School Bus knowledge test in Colorado, as long as you prepare ahead.
Aspiring commercial drivers should study the official 2025 CDL manual first, which contains a section dedicated to the School Bus endorsement. This manual explains key concepts of school bus driving like danger zones, proper use of mirrors, managing students, and railroad-highway grade crossings. However, while the manual is a good starting point, it might not be enough to guarantee a high score on the official written exam.
In Colorado, around half of the students rely on school buses, leading to a high demand for qualified drivers. There are several conditions you have to meet if you want to become one yourself. Maintaining a clean driving record and passing an annual review of your driving history are the most notable ones since they’re the main disqualifiers for some candidates.
A Department of Transportation (DOT) physical exam is also required to ensure you’re physically fit to handle emergency situations. Furthermore, the Colorado Bureau of Investigation will perform a background check to identify any concerning offenses. Crimes involving minors are automatic disqualifiers, and felonies related to drugs and alcohol may also prevent you from receiving the School Bus endorsement.
If you meet all the requirements, you’re good to go. While you’re cleared to take the official written exam, you should try our free CDL School Bus practice tests first, specially made for people in Colorado. Updated for January 2025, these tests have 20 questions specific to the School Bus endorsement. To pass, you’ll need a score of 80%, but it is normal to fail on your first attempts. While these practice tests offer a great way to evaluate your knowledge, you can also use them during your learning phase as they make good educational tools.
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual CO DMV exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- Which of the following statements about the special dangers of loading and unloading is true?
- After you decide on the best type of evacuation, what must you do next?
- While you're loading students, if you cannot account for a student, what should you do?
- A passive railroad crossing
- During your pre-trip vehicle inspection test, make sure that
- What color are all school buses painted?
- Which of the following statements is true about students who must cross in front of the bus after exiting it?
- You should adjust the outside left and right side flat mirrors so you can see
- Which of the following statements about evacuation procedures is true?
- When unloading students at a school, you should
- Immediately after stopping, you should first
- In addition to spare electrical fuses (if equipped), three red reflective triangles, and a working fire extinguisher, emergency equipment for a school bus includes
- For up to ______ of parents, the school bus driver is the only school official they ever meet.
- 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
- Which of the following will confirm that your bus is equipped with an antilock braking system (ABS)?
- Antilock brakes
- You should adjust the left and right side crossover mirrors so you can see
- The overhead inside rear-view mirror is used to
- You MUST evacuate everyone from your school bus if
- The blind spot behind the school bus may extend up to ________, depending on the length and width of the bus.
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