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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 California school bus test, and you must also pass skills tests in a school bus. The CA 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 California CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this CA CDL practice test to prepare for the actual bus test!
1. If there is a behavior problem on the bus that requires you to pull the bus over, after securing the bus you should:
put the student off the bus.
immediately call the school administrator or the police to remove the student.
stand up and speak respectfully to the offender. If a change of seating is needed, request that the student move to a seat near you.
2. When stopping at drawbridges that do not have a signal light or traffic control attendant, you must stop at least _____ before the draw of the bridge.
50 feet
150 feet
100 feet
3. If the drive wheels begin to spin, you should:
accelerate smoothly and change gears as necessary.
take your foot off the accelerator.
apply your brakes all the way.
4. When you are about to pass a vehicle, you should:
make gestures.
assume they don't see you.
slow down.
5. What should you be able to see if the outside convex mirrors are adjusted properly?
The top of the rear window in the top of the mirror, and all of the students.
The entire area in front of the bus, the right and left front tires touching the ground, and the area from the front of the bus to the service door.
The entire side of the bus up to the mirror mounts, the front of the rear tires touching the ground, and at least 1 traffic lane on either side of the bus.
6. When arriving at a destination, it is best to tell passengers to take their carry-ons with them:
as they get off the bus.
before coming to a complete stop.
after stopping.
7. When driving on slippery roads, you should NOT:
go slowly.
use the engine brake.
try to anticipate stops early.
8. When checking your mirrors you should:
use both mirrors.
only use the passenger side mirror.
only use the driver side mirror.
9. One reason parked delivery trucks can present a hazard is:
they are often hard to see.
their drivers are often in a hurry and may suddenly step out of their vehicle.
packages may fall out of the truck.
10. Emergency brakes must be held on by:
mechanical force.
air pressure.
hydraulic pressure.
 
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CA CDL Bus Test

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