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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 Missouri school bus test, and you must also pass skills tests in a school bus. The MO 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 Missouri CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this MO CDL practice test to prepare for the actual bus test!
1. When passing a parked vehicle, which of the following is the only thing you do NOT need to watch out for?
Lights coming on
Passenger door opening
Wheels starting to turn
2. If your vehicle is hydroplaning, you should:
release the accelerator and push in the clutch.
accelerate to get through the water as quickly as possible.
use the brakes to slow down.
3. When approaching a stopped school bus, drivers must be aware that:
students may start to get out of the bus.
the bus may suddenly start up and drive into your way.
All of the above.
4. If you recognize a distracted driver on the road, you should:
follow them closely.
give them plenty of room.
try to pass them.
5. To ensure rider safety, bus drivers should always check the interior of the bus before driving. Aisles and stairwells should always be:
clear.
placarded.
reserved for seniors.
6. When unloading students, you should:
get off the bus and stand right next to it.
have the students remain seated until told to exit.
invite the students to head toward the door while the bus is still moving.
7. When inspecting the vehicle, make sure that:
all emergency exits are not damaged.
all internal and external mirrors and mirror brackets are not damaged.
All of the above.
8. When driving on slippery surfaces, a lack of spray from other vehicles indicates that:
the pavement is dry.
there is no ice on the road surface.
ice has formed on the road.
9. If your school bus is equipped with ABS, it will have:
a yellow ABS malfunction lamp on the instrument panel.
an ABS certification on the driver’s side area of the bus.
None of the above.
10. Drivers should adjust their mirrors:
after driving.
while driving.
before driving.
 
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MO CDL Bus Test

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