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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 Texas school bus test, and you must also pass skills tests in a school bus. The TX 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 Texas CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this TX CDL practice test to prepare for the actual bus test!
1. In vehicles with air brakes, the air compressor governor:
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.
controls how much air the air compressor will pump into the air storage tanks.
None of the above.
2. As a general rule, during an emergency students should be kept:
on the bus.
on the side in an open area.
off the bus on the side of the road.
off the bus, and at least 15 feet away from traffic.
3. If the drive wheels begin to spin, you should:
take your foot off the accelerator.
wait 4-5 seconds before applying the accelerator.
apply your brakes all the way.
accelerate smoothly and change gears as necessary.
4. A disabled bus with passengers on board:
should always be towed or pushed to the nearest safe spot to discharge passengers.
should be towed or pushed to its destination with the passengers on board.
should not be towed or pushed, unless getting off the bus would be unsafe.
must be pushed by another bus.
5. When a school bus is stalled on a railroad-highway crossing, the driver should:
evacuate the bus and lead the students upwind of the bus.
evacuate the bus and lead the students as far away from railroad tracks as possible and in the direction of any oncoming train.
keep the students on the bus to maintain student safety and control.
evacuate the bus and escort the students to a nearby ditch.
6. If you are being tailgated, you should:
turn on your taillights.
make quick changes.
increase your speed very gradually.
open up room in front of you.
7. When approaching a school bus stop, you should:
activate amber warning lights.
approach cautiously.
continuously check all mirrors.
All of the above.
8. When inspecting your bus, make sure that:
signaling devices are working.
seats are safe for riders.
emergency exit handles are in safe working condition.
all of the above have been checked.
9. When stopping at drawbridges that do not have a signal light or traffic control attendant, you must stop at least _____ before the draw of the bridge.
50 feet
25 feet
100 feet
150 feet
10. When changing lanes, you should check your mirrors:
After you complete the lane change.
Before you change lanes.
After you have signaled.
All of the above.
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TX 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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