25 realistic School Bus practice questions for Missouri CDL applicants. Required for: Drivers operating a school bus. Official test: 20 questions, 16 correct to pass.
Question 1 of 25 · Mirrors
How should drivers handle blind spots?
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A.
Use mirrors and check before moving
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B.
Ignore blind spots
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C.
Drive in the middle lane
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D.
Use only the driver's side mirror
Correct answer: A.
Mirror checks are critical, especially around children entering or exiting.
Question 2 of 25 · Danger Zone
What should drivers do if a student is in the danger zone?
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A.
Sound the horn and wait until the student moves to safety
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B.
Continue driving
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C.
Open the door to alert them
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D.
Speed up to scare them
Correct answer: A.
Sound the horn and wait until the student is safely clear.
Question 3 of 25 · Boarding
When using a wheelchair lift, drivers should:
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A.
Follow proper procedures and ensure the wheelchair is secured
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B.
Use the lift quickly
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C.
Refuse to transport wheelchairs
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D.
Skip securing the wheelchair
Correct answer: A.
Use the lift correctly and secure the wheelchair before moving.
Question 4 of 25 · Emergencies
What's the role of the driver during a school bus evacuation?
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A.
Direct students to safety and call for help
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B.
Drive away
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C.
Tell students to handle it
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D.
Stay in the bus
Correct answer: A.
Lead students to safety and contact emergency services.
Question 5 of 25 · CDL Rules
School bus drivers must:
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A.
Have a CDL with School Bus and Passenger endorsements
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B.
Pass a background check
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C.
Have a current Medical Examiner's Certificate
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D.
All of the above
Correct answer: D.
School bus drivers need both S and P endorsements plus background and medical checks.
Question 6 of 25 · Emergencies
How often should school bus drivers practice evacuation procedures?
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A.
Regularly, as required by state regulations
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B.
Once a year
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C.
Never
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D.
Only when an emergency happens
Correct answer: A.
Most states require regular evacuation drills with students.
Question 7 of 25 · Adverse Conditions
What's the safest way to handle a school bus during a thunderstorm?
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A.
Pull over to a safe location and wait until the storm passes
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B.
Continue driving
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C.
Drive faster to escape
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D.
Tell students to handle it
Correct answer: A.
Stop in a safe area; resume only when conditions are safe.
Question 8 of 25 · Driver Wellness
What's the safest way to handle a school bus on a long trip?
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A.
Take regular breaks and stay alert
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B.
Drive without breaks
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C.
Use stimulants
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D.
Sleep while driving
Correct answer: A.
Take regular breaks; fatigue is the enemy of safety.
Question 9 of 25 · Inspection
What is "post-trip inspection"?
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A.
An inspection done after the trip ends to identify defects and any students left on board
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B.
A student survey
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C.
A fuel check
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D.
A weekly maintenance
Correct answer: A.
Walk through the bus after every run to find defects and check for students.
Question 10 of 25 · Inspection
When must school bus drivers check the brakes?
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A.
Before each trip and at any time the brakes are suspect
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B.
Once a week
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C.
Only at maintenance
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D.
Once a month
Correct answer: A.
Inspect brakes every pre-trip and any time something seems wrong.
Question 11 of 25 · Following Distance
What's the safest way to handle a school bus in heavy traffic?
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A.
Maintain extra following distance and signal early
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B.
Speed up to keep with traffic
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C.
Drive aggressively
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D.
Use the shoulder
Correct answer: A.
Extra space and clear signals reduce risk in heavy traffic.
Question 12 of 25 · Emergencies
What's the proper way to handle a fire on a school bus?
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A.
Stop in a safe area, evacuate students, and call for help
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B.
Continue to school
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C.
Tell students to put out the fire
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D.
Drive faster
Correct answer: A.
Stop, evacuate quickly, and call emergency services.
Question 13 of 25 · Loading
What's the proper procedure for loading students?
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A.
Activate flashing lights and stop arm, then allow students to board
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B.
Drive forward to greet students
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C.
Honk to alert students
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D.
Open the door immediately
Correct answer: A.
Activate warning lights and stop arm before opening the door.
Question 14 of 25 · Operation
What's the role of the driver in student behavior?
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A.
Maintain order and a safe environment
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B.
Ignore students
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C.
Be friends with students
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D.
Enforce school rules only
Correct answer: A.
Maintain a safe environment with calm authority.
Question 15 of 25 · Mirrors
What is the importance of using mirrors on a school bus?
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A.
To monitor blind spots and ensure student safety
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B.
To check personal appearance
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C.
For decoration
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D.
To save fuel
Correct answer: A.
Mirrors are critical for monitoring children entering and leaving the bus.
Question 16 of 25 · Emergencies
How should drivers handle a school bus emergency?
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A.
Stop in a safe area, evacuate if needed, call for help
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B.
Continue driving
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C.
Tell students to handle it
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D.
Drive faster
Correct answer: A.
Stop, evacuate if needed, and call for emergency assistance.
Question 17 of 25 · Inspection
What's the importance of regular maintenance for a school bus?
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A.
Prevents breakdowns
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B.
Ensures safety for students
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C.
Reduces costs in the long run
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D.
All of the above
Correct answer: D.
Maintenance keeps the bus safe, reliable, and cost-effective.
Question 18 of 25 · Adverse Conditions
What's the safest way to handle a school bus in fog?
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A.
Use low beams and slow down
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B.
Use high beams
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C.
Speed up to escape fog
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D.
Stop on the highway
Correct answer: A.
Low beams and slower speeds; high beams reflect off fog.
Question 19 of 25 · Operation
What's the proper way to handle a student with special needs?
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A.
Provide assistance and ensure their safety
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B.
Refuse to transport
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C.
Treat them like other students without help
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D.
Charge extra
Correct answer: A.
Provide appropriate assistance; safety comes first.
Question 20 of 25 · Loading
What's the maximum number of students that can be in a school bus?
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A.
Determined by the bus's seating capacity
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B.
Always 50
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C.
No limit
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D.
Always 75
Correct answer: A.
Capacity depends on the bus model and seating configuration.
Question 21 of 25 · Adverse Conditions
What's the safest way to handle a school bus on a wet road?
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A.
Reduce speed and increase following distance
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B.
Drive at posted speed
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C.
Use engine retarder
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D.
Lock the brakes
Correct answer: A.
Slower speeds and more space; engine retarder can cause skids on wet roads.
Question 22 of 25 · Emergency Equipment
What's the importance of using safety equipment?
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A.
Protects driver and students
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B.
Required by law
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C.
Reduces injuries in emergencies
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D.
All of the above
Correct answer: D.
Safety equipment protects everyone, meets legal requirements, and reduces injury.
Question 23 of 25 · Operation
What's the role of the school bus driver in handling disruptive students?
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A.
Stop in a safe area and address the disturbance, contacting authorities if needed
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B.
Ignore them
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C.
Confront students
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D.
Drive faster
Correct answer: A.
Address disturbances safely; involve school authorities or police as needed.
Question 24 of 25 · Adverse Conditions
What's the safest way to handle a school bus on icy roads?
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A.
Slow down and increase following distance
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B.
Drive at posted speed
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C.
Use chains where appropriate
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D.
All of the above
Correct answer: D.
Reduced speed, more space, and chains where required minimize ice risk.
Question 25 of 25 · Mountain Driving
What's the safest way to handle a school bus on a steep downgrade?
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A.
Use lower gears and engine braking
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B.
Coast in neutral
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C.
Brake hard
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D.
Use parking brake
Correct answer: A.
Lower gears and engine braking keep speed under control.
About the School Bus Test
The School Bus test covers danger zones and use of mirrors, loading and unloading, emergency exit and evacuation, railroad-highway grade crossings, student management, antilock brake systems, and special safety considerations. School bus drivers must also pass the Passenger Transport test.
The Missouri Department of Revenue — Driver License Bureau administers this knowledge test as part of its commercial driver license program. To earn the School Bus Endorsement (S) on your Missouri CDL, you need to score at least 16 out of 20 on the official version.
Topics covered on this practice test
- Emergencies: 4 questions
- Adverse Conditions: 4 questions
- Inspection: 3 questions
- Operation: 3 questions
- Mirrors: 2 questions
- Loading: 2 questions
- Danger Zone: 1 question
- Boarding: 1 question
- CDL Rules: 1 question
- Driver Wellness: 1 question
- Following Distance: 1 question
- Emergency Equipment: 1 question
- Mountain Driving: 1 question
How to use this practice test
- Read each question carefully. CDL questions are written precisely — small wording differences matter.
- Click "Show Answers & Explanations" only after answering every question. Don't peek mid-test.
- Read the explanation for every question, even ones you got right. The reasoning is more important than the answer.
- Repeat the test until you score 100%. The questions are deterministic per state, so you can track your improvement over multiple sessions.
- Move on to the other endorsement tests for Missouri until you're ready for the official exam.
Tips specific to the School Bus test
School Bus drivers need both the Passenger and School Bus endorsements. Most school bus questions cover the danger zone, mirror checks, loading and unloading procedures, evacuation, railroad crossings, and student behavior management. Topics like the brake-door interlock and post-trip child-check sweeps appear frequently.