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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 Kansas school bus test, and you must also pass skills tests in a school bus. The KS 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 Kansas CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this KS CDL practice test to prepare for the actual bus test!
1. Buses must never carry:
small arms ammunition labeled ORM-D.
emergency hospital supplies.
irritating material.
All of the above.
2. Air tank drains:
protect the tanks and the rest of the system from too much pressure.
are used to move air to the brakes.
should not be used in wet weather.
are used to remove water and oil from the air tanks.
3. What should you do if you miss a student's unloading stop?
Turn on the right turn signal and try to stop to unload the student.
Back up whenever possible.
Do not back up, and follow the local procedure.
None of the above.
4. If your bus has a manual transmission:
at a multiple-track crossing, stop only before the first set of tracks.
never change gears while crossing railroad tracks.
cross the railroad tracks in a low gear.
All of the above.
5. In vehicles with air brakes, the air compressor governor:
controls how much air the air compressor will pump into the air storage tanks.
controls when the air storage tanks will pump air into the air compressor.
controls when the air compressor will pump air into the air storage tanks.
None of the above.
6. If an evacuation is in the best interest of safety, after determining the best type of evacuation what should you do next?
Secure the bus.
Protect the scene.
Walk through the bus to ensure no students remain on the bus.
Order the evacuation.
7. The outside convex mirrors are located:
above the outside flat mirrors.
below the outside flat mirrors.
on top of the bus.
above the windshield on the driver's side area of the bus.
8. When students unload the bus, they should:
walk along the side of the bus.
stand at the side of the bus.
stop and help the driver supervise the unloading process.
walk at least 10 feet away from the bus.
9. When driving on slippery roads, you should NOT:
use the engine brake.
try to anticipate stops early.
go slowly.
watch far enough ahead to keep a steady speed.
10. As a general rule, during an emergency students should be kept:
on the side in an open area.
off the bus on the side of the road.
on the bus.
off the bus, and at least 15 feet away from traffic.
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KS CDL Bus 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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