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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 Idaho school bus test, and you must also pass skills tests in a school bus. The ID 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 Idaho CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this ID CDL practice test to prepare for the actual bus test!
1. If driving a charter bus, you should:
allow passengers on the bus early.
not allow passengers on the bus until departure time.
explain the passenger comfort and safety rules while driving.
2. If you realize you are going to be later to your destination than you expected, you should:
deal with it and accept the delay.
do your best to avoid the delay.
speed up.
3. Always check the interior of the bus before driving, including:
Emergency exit handles
Floor covering
All of the above.
4. The driver MUST evacuate the bus when:
there is a threat of a fire.
the position of the bus may change and increase the danger.
All of the above.
5. Vehicles with ABS have ______ ABS malfunction lamps on the instrument panel.
6. Service brakes should:
be checked before each trip.
always be checked before applying the brakes.
only be checked by a mechanic.
7. When driving a school bus in strong winds, you should:
Avoid pulling off the road to wait
Speed up to get away from the wind as quickly as possible
Keep a strong grip on the steering wheel and try to anticipate gusts.
8. Before driving your bus, make sure ________ do not have recapped or regrooved tires.
the rear wheels
the spare wheels
the front wheels
9. After unloading at the school, you should walk through the bus to:
make sure no students are returning to the bus.
to check for items left by students and hiding or sleeping students.
close the door.
10. If you are driving a school bus, the 4-way emergency flashers should:
never be used.
be used only when a train is approaching.
be activated before crossing railroad tracks.
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ID School Bus CDL 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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