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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 South Carolina school bus test, and you must also pass skills tests in a school bus. The SC 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 South Carolina CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this SC CDL practice test to prepare for the actual bus test!
1. When approaching a stopped school bus, drivers must be aware that:
passengers may cross in front of or behind the bus.
students may start to get out of the bus.
the bus may suddenly start up and drive into your way.
All of the above.
2. The outside convex mirrors are located:
above the windshield on the driver's side area of the bus.
on top of the bus.
above the outside flat mirrors.
below the outside flat mirrors.
3. School bus drivers should position the outside convex mirrors to see:
the front of the rear tires touching the ground.
the right and left front tires touching the ground.
the area from the front of the bus to the service door.
the top of the rear window.
4. One way to prevent hydroplaning is to:
have less than 4/32 inch tread depth in every major groove on front tires.
take curves at higher speeds.
use the controlled braking method.
make sure you have enough tread on your tires.
5. As a general rule, during an emergency student safety is best maintained by:
planning the evacuation well in advance.
evacuating the bus.
keeping students on the bus.
immediately coming to a complete and sudden stop.
6. When passing a parked vehicle, which of the following is the only thing you do NOT need to watch out for?
Driver's door opening
Passenger door opening
Lights coming on
Wheels starting to turn
7. Crossover mirrors are used to:
monitor passenger activity inside the bus.
monitor the left and right sides of the bus at a wide angle.
monitor traffic.
see the "danger zone" areas in front of the bus and to the left and right side of the bus.
8. If a student is believed to have suffered a neck or spinal injury, you should:
move the student as far away from the bus as possible.
stay as far away from the student as possible.
not move the student.
move the student off the bus.
9. If a tire fails while you are driving, you should:
brake as hard as possible.
stop on the roadway if possible.
call your supervisor for instructions.
stay off the brake until your vehicle has slowed down.
10. When stopping, you should bring the school bus to a full stop how many feet away from students at the bus stop?
At least 50 feet
At least 5 feet
At least 10 feet
At least 25 feet
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SC CDL School Bus Test

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