California School Bus CDL Practice Test
Below are 25 exam-style questions for the California School Bus CDL knowledge test, modeled on the FMCSA-aligned content used by the California Department of Motor Vehicles. Try to answer each question on your own before reading the answer key directly under it. The questions and answer choices are shuffled deterministically per state and endorsement, so the order will stay the same on repeat visits — that lets you genuinely measure your improvement.
- A Moving slowly
- B Stopped with the parking brake set, transmission in neutral or park, and warning lights on
- C In reverse
- D Idling in gear
- A All of the above
- B The blind spot directly in front
- C The danger zone — 10 feet around the bus
- D The blind spot directly behind
- A Speed past
- B Be at a low speed and prepared to stop, watching for waiting students
- C Honk to scare them
- D Skip the stop if running late
- A Use only the four-ways
- B Honk repeatedly
- C Activate amber warning lights about 100-300 feet before the stop, then red lights and stop arm at the stop
- D Slam on the brakes at the stop
- A Speed up
- B Honk continuously
- C Maintain speed
- D Slow down and move over if possible
- A Operate without working emergency exits
- B Allow standees in the aisle
- C All of the above
- D Operate the bus while distracted by passengers
- A Skip the visual check
- B Open partway and rush
- C Verify the door is fully open and the area is clear before allowing students to disembark
- D Allow students to push the door open
- A Move the bus immediately
- B Care for injured students, contact emergency services, and notify the school
- C Continue the route
- D Leave students unattended
- A Right flat then left flat
- B Left flat, left convex, crossover, right flat, right convex, then door
- C Door only
- D Crossover then door
- A Maintain normal speed
- B Skip the pre-trip
- C Allow students to walk home
- D Reduce speed and increase following distance, and consider chains where allowed
- A Skip pre-trip in cold weather
- B Use only the parking brake
- C Allow students to dress lightly
- D Inspect heater and defroster operation, tires, and lights for snow and ice
- A Take the student home personally
- B Drive home
- C Notify the school and follow company policy
- D Leave the student
- A Cracks in mirrors
- B All of the above
- C Loose parts
- D Damage that could endanger students
- A Pick it up quickly
- B Leave it
- C Run to the next stop
- D Stop and tell the driver before retrieving the item
- A At fueling stops
- B In the bus garage
- C During loading and unloading near the bus
- D On the highway during the trip
- A Cross at any time
- B Walk close to the bus where the driver can see them, after a hand signal from the driver
- C Run across
- D Cross behind the bus
- A Loading and unloading procedures, route timing, and emergency contacts
- B All of the above
- C How to handle parents at stops
- D Reporting absences
- A Charge a fee
- B Refuse service
- C Use the lift or ramp per training and secure the mobility device
- D Allow boarding without securement
- A Wait until students have moved at least 10 feet from the bus and then check mirrors before pulling away
- B Honk and drive
- C Drive on the shoulder
- D Pull away as the door closes
- A Up to date per state and federal rules
- B Only at the start of the school year
- C Once every 5 years
- D Only when convenient
- A Improperly stored hazardous items
- B Loose objects that could become projectiles
- C More students than the seating capacity
- D All of the above
- A The designated stop
- B A different location only with authorization
- C The bus garage
- D Anywhere a student requests
- A All of the above
- B Strike pedestrians
- C Damage the bus
- D Hit objects on the side opposite the turn
- A No traffic will pass while the bus is stopped
- B All children will follow the rules
- C Children may not see or hear the bus
- D Drivers will always stop for the red lights
- A Send students out the rear
- B Evacuate from the closest exit regardless of danger
- C Wait for help
- D Choose the safest exit (often the front door, away from the danger), evacuate students, and account for all of them
Study tips for the California School Bus exam
The School Bus portion of the California CDL exam is graded out of the bank of questions the California Department of Motor Vehicles draws from each year. While the exact bank is not published, every question is sourced from the School Bus chapter of the California CDL handbook, which itself is derived from the FMCSA Model Commercial Driver's License Manual. That means studying our practice tests, reading the corresponding handbook chapter, and re-reading the parts you got wrong is genuinely the most efficient route to a first-time pass.
Most successful applicants follow a simple cycle: take the practice test cold, write down every question you missed, open the matching chapter of the official California handbook, re-read the section that contains the right answer, then re-take the practice test 24 to 48 hours later. The 24-hour delay matters — sleep is when your brain commits new information to long-term memory, and CDL knowledge questions reward that kind of consolidated learning rather than cramming.
Pay particular attention to questions that include qualifier words like always, never, only, primary, or most. CDL test writers love to flip the right answer with a single qualifier. When two answer choices look almost identical, pay attention to the verb (is it must, should, or may?) and to any numbers (14 days, 100 air miles, 8 hours, 70/8 split). On endorsement tests in particular, watch for trick framing where a true statement about a different endorsement is offered as the "correct" answer to a question that is actually about School Bus.
Test-day logistics matter too. Bring photo ID, your Social Security card or birth certificate, your medical examiner's certificate (DOT card), and proof of state residency if you haven't already submitted those documents. The California Department of Motor Vehicles will not let you sit for the knowledge exam without your documentation, and most offices charge an additional fee for re-attempts. Arrive early — the wait at most CDL testing offices runs 30 to 60 minutes — and silence your phone before the exam begins.
Finally, keep your General Knowledge fundamentals sharp even when you're focused on the School Bus exam. Many states administer multiple knowledge tests in a single sitting, and questions on weight definitions (GVWR, GCWR, GAWR), stopping distance, and the pre-trip inspection routine show up across endorsements. If you're unsure on the basics, sit a fresh California General Knowledge practice test before scheduling the real exam.
Next steps
Missed more than four questions? Re-read the School Bus study guide and the matching chapter in the official California CDL handbook. Then come back and re-take the test. Once you can score 22 of 25 or higher on three runs in a row, you're in good shape to schedule the real exam at your local California Department of Motor Vehicles office.
Already comfortable with this endorsement? Drill another: CA General Knowledge · CA Air Brakes · CA Combination Vehicles · CA Hazardous Materials · CA Passenger · CA Tank Vehicle · CA Doubles / Triples
New to the CDL process in California? Read How to apply for a CDL in California for the document checklist and step-by-step timeline.