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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. When evacuating the bus, a safe place will be at least _____ off the road in the direction of oncoming traffic.
20 feet
100 feet
30 feet
50 feet
2. School buses:
are never equipped with ABS.
may be equipped with ABS.
are only equipped with ABS if built after March 2010.
are only equipped with ABS when transporting students.
3. During unloading, if the school bus driver cannot account for a student outside the bus, the driver should:
assume the student got back on the bus.
secure the bus, and check around and underneath the bus.
walk through the bus to ensure the students is not on the bus.
All of the above.
4. Which of the following statements about the special dangers of loading and unloading is true?
Students should be told to leave any dropped object and move to a point of safety out of the danger zones and attempt to get the driver’s attention to retrieve the object.
You should move the bus prior to confirming that all students have exited the bus and are in a safe location.
Students should be told to pick up any dropped object as long as it's not under the bus.
None of the above.
5. When driving on a slippery surface, you should do all of the following except:
keep a shorter following distance.
not pass slower vehicles unless necessary.
watch far enough ahead to keep a steady speed.
adjust braking to conditions.
6. When arriving at a destination, it is best to tell passengers to take their carry-ons with them:
after stopping.
at least twice.
as they get off the bus.
before coming to a complete stop.
7. How should you brake when driving a bus with ABS?
Always try to fully apply the brakes.
Brake as you always have.
Pump the brakes as usual.
None of the above.
8. When a school bus is stalled on a railroad-highway crossing, the driver should:
evacuate the bus and lead the students as far away from railroad tracks as possible and in the direction of any oncoming train.
evacuate the bus and lead the students upwind of the bus.
keep the students on the bus to maintain student safety and control.
evacuate the bus and escort the students to a nearby ditch.
9. Before starting down a hill, you should slow down and shift down:
so you can coast downhill.
to a gear that will cause your engine to exceed its redline.
to a speed that you can control without using the brakes hard.
to a gear that will cause your brakes to overheat.
10. School buses are equipped with a/an ________ warning system of alternately flashing amber and red lights.
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SD School Bus Test

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