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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 Dakota school bus test, and you must also pass skills tests in a school bus. The SD 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 Dakota CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this SD CDL practice test to prepare for the actual bus test!
1. Carry-on baggage:
should not be left in the aisle.
must be left in the aisle.
may be left in the aisle.
None of the above.
2. The driver MUST evacuate the bus when:
there is an imminent danger of an accident.
there is a threat of a fire.
the position of the bus may change and increase the danger.
All of the above.
3. After starting the engine, the ABS light stays on. This means:
the ABS is not working properly.
the ABS is working properly.
the ABS is in Neutral.
the ABS oil level is not adequate.
4. School bus drivers should tell students to exit the bus and walk at least ______ from the side of the bus.
5 feet away
10 feet away
25 feet away
8 feet away
5. If you are driving a school bus, the 4-way emergency flashers should:
never be used.
be used only when a train is approaching.
be activated after crossing railroad tracks.
be activated before crossing railroad tracks.
6. When you need to brake, you should warn the drivers behind:
by making gestures.
by turning on the 4-way emergency flashers.
by changing lanes.
by flashing your brake lights.
7. When checking the bus seats, make sure that:
they have not been damaged.
they are safe for riders.
they are securely fastened to the bus.
All of the above.
8. The standee line:
is used at bus stops.
tells the school bus driver where to steer.
is part of the braking system.
shows riders where they cannot stand.
9. Air tank drains:
are used to move air to the brakes.
protect the tanks and the rest of the system from too much pressure.
should not be used in wet weather.
are used to remove water and oil from the air tanks.
10. What should you do if you miss a student's unloading stop?
Do not back up, and follow the local procedure.
Turn on the right turn signal and try to stop to unload the student.
Back up whenever possible.
None of the above.
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SD CDL School Bus Test

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