25 realistic School Bus practice questions for South Carolina CDL applicants. Required for: Drivers operating a school bus. Official test: 20 questions, 16 correct to pass.
Question 1 of 25 · Loading
What's the maximum number of standees allowed on a school bus?
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A.
Generally not allowed
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B.
Same as seated passengers
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C.
Always 10
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D.
No limit
Correct answer: A.
Standees are generally not allowed on school buses for safety.
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 · 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 4 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 5 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.
Question 6 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 7 of 25 · Inspection
What's the importance of pre-trip inspection on a school bus?
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A.
To identify defects before driving children
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B.
To comply with regulations
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C.
To ensure student safety
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D.
All of the above
Correct answer: D.
Pre-trips identify defects, comply with rules, and protect children.
Question 8 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 9 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 10 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 11 of 25 · Operation
What's the role of the school bus driver in student safety?
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A.
Maintain a safe environment and respond to emergencies
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B.
Collect fares
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C.
Drive without regard to students
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D.
Enforce school rules only
Correct answer: A.
Drivers protect students throughout boarding, transport, and unloading.
Question 12 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 13 of 25 · Emergencies
What is "evacuation procedure"?
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A.
Steps to safely remove students from the bus in an emergency
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B.
A type of bus stop
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C.
A maintenance task
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D.
A driving technique
Correct answer: A.
Evacuation procedures move students out of the bus quickly and safely in emergencies.
Question 14 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 15 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 16 of 25 · Emergencies
What's the role of emergency exits on a school bus?
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A.
To provide alternate evacuation routes in emergencies
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B.
For luggage
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C.
For ventilation
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D.
For maintenance
Correct answer: A.
Emergency exits give children additional ways out in a crash or fire.
Question 17 of 25 · Loading
When are flashing red lights and stop arm extended?
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A.
When the bus is stopped to load or unload students
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B.
When the bus is moving
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C.
When the bus is parked
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D.
When the engine is off
Correct answer: A.
Lights and stop arm activate during student loading and unloading.
Question 18 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 19 of 25 · Rail Crossings
What's the safest way to handle a school bus at a railroad crossing?
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A.
Stop within 15-50 feet of nearest rail, look and listen, and turn off any noise-producing equipment
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B.
Speed up to clear quickly
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C.
Stop on the tracks
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D.
Drive across normally
Correct answer: A.
Stop, open windows or door if helpful, listen, and check both directions.
Question 20 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 21 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 22 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 23 of 25 · Hours of Service
What's the importance of the driver's log book?
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A.
To track hours of service and ensure compliance
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B.
To track student attendance
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C.
To plan routes
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D.
For tax purposes
Correct answer: A.
Logs document compliance with hours of service rules.
Question 24 of 25 · Communication
What's the proper way to communicate with students?
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A.
Clear announcements about safety and rules
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B.
Don't communicate
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C.
Yell at students
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D.
Use only hand signals
Correct answer: A.
Clear and respectful communication keeps students safe and informed.
Question 25 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.
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 South Carolina Department of Motor Vehicles administers this knowledge test as part of its commercial driver license program. To earn the School Bus Endorsement (S) on your South Carolina CDL, you need to score at least 16 out of 20 on the official version.
Topics covered on this practice test
- Loading: 4 questions
- Operation: 4 questions
- Emergencies: 4 questions
- Inspection: 3 questions
- Danger Zone: 1 question
- Adverse Conditions: 1 question
- Mirrors: 1 question
- Mountain Driving: 1 question
- Driver Wellness: 1 question
- Rail Crossings: 1 question
- Boarding: 1 question
- CDL Rules: 1 question
- Hours of Service: 1 question
- Communication: 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 South Carolina 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.