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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. What factors can cause brakes to fail or fade?
Excessive use of the service brakes
Not relying on the engine braking effect
Brakes out of adjustment
All of the above.
2. When you double your speed, the braking distance is:
the same.
4 times longer.
3 times longer.
2 times longer.
3. When unloading students along the school bus route:
Have the students remain seated until told to exit.
Check all mirrors.
Count the number of students while unloading to confirm the location of all students before pulling away from the stop.
All of the above.
4. Even if you are not required to always stop at railroad crossings and you are sure no train is approaching, you must stop before reaching the crossing if:
there is oncoming traffic.
the tracks are not clear.
there is no oncoming traffic.
you can drive completely through the crossing without stopping.
5. If you are loading students along the route and cannot account for a student, you should:
call the relevant authorities.
secure the bus, adjust the mirrors and prepare to leave.
secure the bus, take the key and check around and underneath the bus.
ask other students if they saw the missing students.
6. The overhead inside rearview mirror:
may provide limited visibility in the back of the bus if the bus is equipped with a glass-bottomed rear emergency door.
is used to monitor passenger activity inside the bus.
is mounted above the windshield on the driver’s side area of the bus.
All of the above.
7. Baggage and freight should be secured in a way that:
allows riders to easily identify their baggage before they get off the bus in an emergency.
allows riders to quickly take their baggage with them in an emergency.
blocks one exit, but allows riders to exit by any remaining window or door in an emergency.
allows riders to exit by any window or door in an emergency.
8. When making a turn you should:
signal early.
make gestures to get the attention of other drivers.
turn the signal off before entering the turn.
honk your horn.
9. The official routes and school bus stops are established by:
each driver.
the students.
the parents.
each school district.
10. Buses may carry:
emergency hospital supplies.
small-arms ammunition labeled ORM-D.
All of the above.
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TX School 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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