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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 Wyoming school bus test, and you must also pass skills tests in a school bus. The WY 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 Wyoming CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this WY CDL practice test to prepare for the actual bus test!
1. When making a turn you should:
turn the signal off before entering the turn.
signal early.
honk your horn.
make gestures to get the attention of other drivers.
2. If driving a charter bus, you should:
tell passengers to fill the back of the bus first.
not allow passengers on the bus until departure time.
allow passengers on the bus early.
explain the passenger comfort and safety rules while driving.
3. If the road is icy, you should:
put the transmission in neutral and stay off the brake until the vehicle has slowed down, then pull off the road and stop.
reduce speed to a crawl and stop driving as soon as you can safely do so.
maintain your current speed and stop driving as soon as you can safely do so.
All of the above.
4. ABS:
keeps your wheels from locking up during hard brake applications.
always shortens your overall stopping distance.
helps increase brake pressure.
allows you to drive faster.
5. How many red reflective triangles should you carry?
6. To avoid a hazard:
stopping is always the best thing to do.
driving on the shoulder of the road is always the best thing to do.
changing lanes is always the best thing to do.
steering away from what is ahead may be the best thing to do.
7. ABS:
causes your wheels to lock when you break hard.
helps increase brake pressure.
gives you more control when you brake.
is not required on newer trucks.
8. If your bus leans toward the outside on a banked curve, the bus:
is going too slow.
is going at the proper speed.
has good traction.
is going too fast.
9. Properly adjusted outside left and right side flat mirrors should allow the driver to see:
at least 1 traffic lane on either side of the bus.
the front bumper.
the front tires touching the ground.
the rear tires touching the ground.
10. School buses:
are only equipped with ABS if built after March 2010.
are only equipped with ABS when transporting students.
may be equipped with ABS.
are never equipped with ABS.
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WY School Bus Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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