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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. You must have at least _____ inch tread depth in every major groove on front tires.
2/32
6/32
4/32
2. When stopping to pick up students at the bus stop, which of the following comes after all the others?
Check to confirm that all traffic has stopped before opening the door and signaling students to approach.
Place the transmission in park or in neutral and set the parking brake.
Activate the alternating red lights when traffic is a safe distance from the school bus.
3. When driving in heavy traffic, the safest speed is:
slower than the speed of other traffic.
the speed of traffic.
the posted speed limit.
4. When you double your speed, the braking distance is:
3 times longer.
4 times longer.
the same.
5. If your bus leans toward the outside on a banked curve, the bus:
is going too fast.
is going too slow.
is going at the proper speed.
6. When approaching the bus stop, you should activate the lights approximately _______ before the bus stop.
5-10 seconds
4-6 seconds
25 seconds
7. Carry-on baggage should be placed:
in the aisle.
below the bus.
in a way that allows passengers to exit by any window or door in an emergency.
8. The overhead inside rearview mirror:
is used to monitor passenger activity inside the bus.
may provide limited visibility in the back of the bus if the bus is equipped with a glass-bottomed rear emergency door.
All of the above.
9. Before starting down a hill, you should slow down and shift down:
to a speed that you can control without using the brakes hard.
to a gear that will cause your engine to exceed its redline.
so you can coast downhill.
10. During an emergency student safety is generally best maintained by:
leading students downwind of the bus if fire is present.
leading students as far away from the bus as possible.
keeping students on the bus.
 
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CA School Bus CDL Test

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