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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. During unloading, if the school bus driver cannot account for a student outside the bus, the driver should:
secure the bus, and check around and underneath the bus.
walk through the bus to ensure the students is not on the bus.
assume the student got back on the bus.
2. When you need to brake, you should warn the drivers behind:
by flashing your brake lights.
by changing lanes.
by making gestures.
3. How can you tell if your vehicle is equipped with ABS?
Look for yellow ABS malfunction lamps on the instrument panel.
Trailers will have yellow ABS malfunction lamps on the left side.
All of the above.
4. When driving on a slippery surface, you should do all of the following except:
keep a shorter following distance.
not pass slower vehicles unless necessary.
adjust braking to conditions.
5. When driving in heavy traffic, the safest speed is:
slower than the speed of other traffic.
the speed of traffic.
the posted speed limit.
6. In an emergency:
you should keep one hand on the steering wheel.
you should never turn to miss an obstacle.
stopping is not always the safest thing to do.
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 exit by any window or door in an emergency.
allows riders to quickly take their baggage with them in an emergency.
8. When checking your mirrors you should:
use both mirrors.
only use the driver side mirror.
only use the passenger side mirror.
9. You hear a loud "bang" which sounds like a tire blowout. You should:
check the tires at the next stop.
keep driving as normal.
assume you have a tire failure.
10. Do not push or tow a disabled bus with riders aboard the vehicle, unless:
the distance to be covered is less than 5 miles.
the majority of the passengers agree.
getting off would be unsafe.
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ID CDL School Bus Test

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