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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 West Virginia school bus test, and you must also pass skills tests in a school bus. The WV 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 West Virginia CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this WV CDL practice test to prepare for the actual bus test!
1. Before crossing railroad tracks you should:
stay to the left of the roadway if possible.
stop no closer than 100 feet from the nearest rail.
place the transmission in first gear.
open the service door and driver's window to look and listen for approaching trains.
2. You should adjust the outside left and right side flat mirrors so you can see:
the rear tires touching the ground.
400 feet behind the bus.
the right and left front tires touching the ground.
All of the above.
3. Properly adjusted crossover mirrors allow you to see:
the right and left front tires touching the ground.
the entire area in front of the bus.
the area from the front of the bus to the service door.
All of the above.
4. When crossing railroad tracks, you should:
shift gears while crossing the tracks.
apply the parking brakes.
stop on the tracks.
stay in your lane.
5. To correct a drive-wheel braking skid, you should:
apply the brakes and turn in the direction of the skid.
stop braking.
None of the above.
6. When driving, you should check your mirrors:
every 4 seconds.
only when there may be a problem.
every 10 seconds.
7. In an emergency, before making a decision to evacuate the school bus, if time permits you should:
tell students to walk at least 10 feet away when they exit the bus.
count the number of students.
contact your dispatcher to explain the situation.
release the parking brake.
8. Engine oil pressure should come up to normal within _________ after the engine is started.
ten minutes
five minutes
two minutes
9. Students should board the bus:
only if the driver knows their names.
only if there is a student missing.
only when signaled by the driver.
10. If your school bus is equipped with ABS, it will have:
a yellow ABS malfunction lamp on the instrument panel.
a red ABS malfunction lamp on the instrument panel.
an ABS certification on the driver’s side area of the bus.
None of the above.
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WV CDL Bus Test

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