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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. Properly adjusted outside left and right side flat mirrors allow the school bus drivers to see _____ behind the bus.
50 feet
200 feet
300 feet
2. When students are boarding the school bus, you should do all of the following except:
count the number of students at the bus stop and ensure all board the bus.
ask the students to board in pairs.
monitor all mirrors continuously.
3. As a general rule, during an emergency students should be kept:
off the bus, and at least 15 feet away from traffic.
on the bus.
off the bus on the side of the road.
4. Texting while operating a commercial motor vehicle is:
acceptable if you are contacting your supervisor.
acceptable if you are contacting your dispacther.
5. If an evacuation is in the best interest of safety, after determining the best type of evacuation what should you do next?
Secure the bus.
Order the evacuation.
Protect the scene.
6. When approaching the bus stop, you should activate the lights approximately _______ before the bus stop.
5-10 seconds
25 seconds
4-6 seconds
7. To make the brakes work, air brakes use:
compressed air.
hydraulic air.
8. Never refuel your bus:
in a closed building with riders on board.
with a higher grade of fuel.
while the windows are open.
9. If you perform the skills test in a vehicle that is not equipped with air brakes:
you will be required to take the tank vehicle test.
you will be required to operate vehicles with air brakes.
you will be restricted from operating vehicles with air brakes.
10. A school bus driver must evacuate the bus when:
the bus is stalled on a railroad crossing.
the ABS is not working properly.
you have pull off the road and stop.
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ID School Bus Test

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