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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. After unloading at the school, you should walk through the bus to:
make sure no students are returning to the bus.
close the door.
to check for items left by students and hiding or sleeping students.
2. Select the best answer. Danger zones are located:
on all sides of the bus.
to the sides of the bus.
in the front of the bus.
3. When evacuating the bus, a safe place will be at least _____ off the road in the direction of oncoming traffic.
100 feet
20 feet
30 feet
4. If the safety relief valve in the air brake system releases air:
something is wrong.
this will supply more power to the brakes.
the valve is fully operational.
5. ABS:
is not required on newer trucks.
gives you more control when you brake.
causes your wheels to lock when you break hard.
6. Proper adjustment and use of all mirrors is vital to the safe operation of a school bus:
in order to have the students exit in orderly fashion.
in order to see 500 feet or 10 bus lengths behind the bus.
in order to monitor the danger zones around the bus for students, traffic, and other objects.
7. To ensure rider safety, bus drivers should always check the interior of the bus before driving. Aisles and stairwells should always be:
reserved for seniors.
8. Properly adjusted outside left and right side flat mirrors allow the school bus drivers to see _____ behind the bus.
200 feet
50 feet
300 feet
9. When backing, you should:
only use mirror on the driver's side.
use the mirrors on both sides.
back quickly.
10. If you lose ABS control on one or more wheels, you should:
drive normally (you still have regular brakes), but get the system serviced soon.
fully apply the brakes until you stop.
immediately report it to the motor carrier.
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CA CDL School Bus Test

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