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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 Wisconsin school bus test, and you must also pass skills tests in a school bus. The WI 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 Wisconsin CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this WI CDL practice test to prepare for the actual bus test!
1. If there is a behavior problem on the bus that requires you to pull the bus over, after securing the bus you should:
immediately call the school administrator or the police to remove the student.
count the number of students to confirm the location of all students before before calling the police.
stand up and speak respectfully to the offender. If a change of seating is needed, request that the student move to a seat near you.
put the student off the bus.
2. Before leaving a bus stop, you should:
walk through the bus to check for items left by students.
walk through the bus and around the bus to look for open windows and doors.
make sure no students are around or returning to the bus.
walk through the bus to check for sleeping students.
3. When stopping, drivers should bring the school bus to a full stop with the front bumper at least ______ away from students at the bus stop.
10 feet
30 feet
50 feet
5 feet
4. Buses may carry:
emergency hospital supplies.
small-arms ammunition labeled ORM-D.
All of the above.
5. When stopping to pick up students, the driver should park at least 10 feet away from the students. Why?
Because this forces the students to walk to the bus so the driver has a better view of their movements.
Because this forces the students to walk to the bus and have a better view of their own movements.
Because this forces the students to cross the street to walk to the bus.
Because this forces the driver to watch the rear of the vehicle by looking out the side window.
6. ABS (Anti-lock Braking System):
is an addition to your normal brakes.
does not decrease or increase your normal braking capability.
keeps your wheels from locking when you apply the brakes hard.
All of the above.
7. When students are boarding the school bus, you should do all of the following except:
monitor all mirrors continuously.
wait until students are seated before moving the bus.
count the number of students at the bus stop and ensure all board the bus.
ask the students to board in pairs.
8. When checking tires, which of the following is not a problem?
Cracked valve stems
4/32 inch tread depth on front tires
Too much air pressure
Radial and bias-ply tires used together
9. If you feel drowsy, you should _______ before driving.
listen to upbeat music
drink coffee
10. One way to prevent hydroplaning is to:
use the controlled braking method.
make sure you have enough tread on your tires.
have less than 4/32 inch tread depth in every major groove on front tires.
take curves at higher speeds.
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WI School Bus CDL 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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