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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 Utah school bus test, and you must also pass skills tests in a school bus. The UT 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 Utah CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this UT CDL practice test to prepare for the actual bus test!
1. Which of the following road surfaces freezes first?
Open roads
2. If the drive wheels begin to spin, you should:
accelerate smoothly and change gears as necessary.
apply your brakes all the way.
wait 4-5 seconds before applying the accelerator.
take your foot off the accelerator.
3. You should NOT use the parking brakes if:
the brakes are too dry.
the brakes are very hot.
the brakes are cold.
All of the above.
4. If your bus gets stuck on a railroad track, you should:
lead students across the tracks, and have them stand at least 100 feet off tracks.
keep students on the bus and contact your dispatcher to explain the situation.
lead students as far away from the tracks as possible, in the direction of any oncoming train.
keep students on the bus and call for help.
5. The driver's seat of a bus should have:
a pocket for storage.
an emergency exit handle.
a seat belt.
a brake and accelerator interlock system.
6. If the safety relief valve in the air brake system releases air:
this will supply more power to the drive wheels.
something is wrong.
the valve is fully operational.
this will supply more power to the brakes.
7. When unloading students, you should:
have the students remain seated until told to exit.
invite the students to head toward the door while the bus is still moving.
get off the bus and stand right next to it.
None of the above.
8. If your bus leans toward the outside on a banked curve:
you are driving too slow.
you are braking too hard.
you are turning too soon.
you are driving too fast.
9. School bus drivers should position the outside convex mirrors to see:
the top of the rear window.
the front of the rear tires touching the ground.
the right and left front tires touching the ground.
the area from the front of the bus to the service door.
10. When going down a hill, you should downshift:
at the bottom of the hill.
before you start going downhill.
after starting down a hill.
as you go downhill.
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UT CDL 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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