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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 Kentucky school bus test, and you must also pass skills tests in a school bus. The KY 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 Kentucky CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this KY CDL practice test to prepare for the actual bus test!
1. The posted speed for a curve:
may not be safe for a bus.
is always safe for all vehicles.
is safe for a bus.
is safe for all vehicles except motorcycles.
2. How far should you look ahead when driving? At least:
20 to 25 seconds
8 to 12 seconds
5 to 8 seconds
12 to 15 seconds
3. What should you be able to see if the outside convex mirrors are adjusted properly?
The entire side of the bus up to the mirror mounts, the front of the rear tires touching the ground, and at least 1 traffic lane on either side of the bus.
The area from the front of the bus to the service door and all of the students, including the heads of the students right behind you.
The entire area in front of the bus, the right and left front tires touching the ground, and the area from the front of the bus to the service door.
The top of the rear window in the top of the mirror, and all of the students.
4. Students should board the bus:
without watching their step.
two at a time.
three at a time.
in single file.
5. If your school bus is equipped with ABS, it will have:
a red ABS malfunction lamp on the instrument panel.
a yellow ABS malfunction lamp on the instrument panel.
an ABS certification on the driver’s side area of the bus.
None of the above.
6. To ensure rider safety, bus drivers should always check the interior of the bus before driving. Aisles and stairwells should always be:
reserved for seniors.
clear.
placarded.
clean.
7. The header board, if equipped, should:
not be used in case of a crash or emergency stop.
never be used for cargo.
can be dangerous.
block the forward movement of any cargo you carry.
8. Carry-on baggage:
may be left in the aisle.
should not be left in the aisle.
must be left in the aisle.
None of the above.
9. Which of the following is NOT true?
ABS won't compensate for bad brakes.
ABS only comes into play when a wheel would have locked up because of over braking.
ABS will change the way you normally brake.
ABS won't compensate for poor brake maintenance.
10. Pre-trip inspections:
are optional when the driver is familiar with the vehicle.
should not be done when a vehicle inspection report is available.
should not be done unless the vehicle has problems that could cause a breakdown.
should always be done in the same order.
 
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KY School Bus Test

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