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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 Oklahoma school bus test, and you must also pass skills tests in a school bus. The OK 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 Oklahoma CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this OK CDL practice test to prepare for the actual bus test!
1. The safety valve is usually set to open at:
150 psi.
100 psi.
200 psi.
2. The heavier the vehicle:
the more work the brakes must do to stop it.
the higher the center of gravity will be.
the less work the brakes must do to stop it.
3. If your bus leans toward the outside on a banked curve, the bus:
is going too slow.
is going at the proper speed.
is going too fast.
4. When students load and unload, what should the driver do?
plan the route.
ask the students to be quick.
supervise the process.
5. School bus drivers should tell students to exit the bus and walk at least ______ from the side of the bus.
10 feet away
5 feet away
8 feet away
6. If driving a new vehicle, you should familiarize yourself with the controls and equipment:
before you start driving.
as you drive.
within the first 50 miles.
7. If you experience a tire failure, do NOT:
stay off the brake (unless you'reabout to run into something).
apply the brakes as hard as you can.
hold the steering wheel firmly.
8. Rough acceleration:
can cause mechanical damage.
is necessary to warm up the engine.
improves gas mileage.
9. When unloading students along the school bus route:
Have the students remain seated until told to exit.
Count the number of students while unloading to confirm the location of all students before pulling away from the stop.
All of the above.
10. When driving, you should check your mirrors:
every 10 seconds.
only when there may be a problem.
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OK 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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