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The school bus endorsement applies to applicants who wish to drive a school bus in any Class A or B CDL. To add an S endorsement to your CLP/CDL, you must pass the Indiana school bus test, and you must also pass skills tests in a school bus. The IN CDL bus test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The knowledge test covers the following sections of the Indiana CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this IN CDL practice test to prepare for the actual bus test!
1. When backing, you should:
back and turn toward the right side whenever possible.
back quickly.
use the mirrors on both sides.
only use mirror on the driver's side.
2. You hear a loud "bang" which sounds like a tire blowout. You should:
keep driving as normal.
inspect your tires with your mirrors.
check the tires at the next stop.
assume you have a tire failure.
3. It is safer to drive over (rather than to avoid) which of the following?
Paper and cloth sacks
Plastic containers
Cardboard boxes
None of the above.
4. Do not push or tow a disabled bus with riders aboard the vehicle, unless:
there are 15 students or less.
the majority of the passengers agree.
getting off would be unsafe.
the distance to be covered is less than 5 miles.
5. Properly adjusted outside convex mirrors should allow school bus drivers to see:
the area from the front of the bus to the service door.
all of the students.
the entire side of the bus up to the mirror mounts.
the entire area in front of the bus.
6. The safety valve is usually set to open at:
200 psi.
100 psi.
75 psi.
150 psi.
7. When arriving at a destination, it is best to tell passengers to take their carry-ons with them:
before coming to a complete stop.
as they get off the bus.
after stopping.
at least twice.
8. Vehicles with ABS have ______ malfunction lamps on the bus’s instrument panel to tell you if something is not working.
9. When you double your speed, the braking distance is:
2 times longer.
4 times longer.
3 times longer.
the same.
10. Buses may carry:
small-arms ammunition labeled ORM-D.
emergency hospital supplies.
All of the above.
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IN CDL School Bus Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
Number of questions: 20
Correct answers to pass:16
Passing score:80%
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