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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 Illinois school bus test, and you must also pass skills tests in a school bus. The IL 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 Illinois CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this IL CDL practice test to prepare for the actual bus test!
1. When you are driving a school bus, the emergency exit doors or windows must always:
stay open.
be closed.
have a red door light turned on.
None of the above.
2. It is safer to drive over (rather than to avoid) which of the following?
Cardboard boxes
Plastic containers
Paper and cloth sacks
None of the above.
3. What should you do if you miss a student's unloading stop?
Do not back up, and follow the local procedure.
Back up whenever possible.
Turn on the right turn signal and try to stop to unload the student.
None of the above.
4. If the drive wheels begin to spin, you should:
accelerate smoothly and change gears as necessary.
take your foot off the accelerator.
wait 4-5 seconds before applying the accelerator.
apply your brakes all the way.
5. Passive railroad crossings:
do not have yellow circular advance warning signs, pavement markings and crossbucks.
do not have any type of traffic control device.
do not require you to stop.
All of the above.
6. If a student drops something in front of the bus, the student should:
pick up the object as quickly as possible.
ask the driver to retrieve the item.
leave the item where it fell, and get the driver's attention and permission to retrieve the item.
leave the item behind.
7. If you cannot make a right turn without entering another traffic lane, you should:
swing wide to the left before starting the turn.
turn wide as you complete the turn.
turn wide before you start the turn.
watch out for vehicles coming toward you and back up for them.
8. When students load and unload, what should the driver do?
plan the route.
ask the students to be quick.
supervise the process.
All of the above.
9. If you feel drowsy, you should _______ before driving.
listen to upbeat music
drink coffee
10. When approaching a vehicle with a distracted driver, you should:
quickly pass the vehicle.
maintain your safe following distance.
sound your horn.
change lanes quickly.
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IL 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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