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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 Maryland school bus test, and you must also pass skills tests in a school bus. The MD 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 Maryland CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this MD CDL practice test to prepare for the actual bus test!
1. Drivers should adjust their mirrors:
while driving.
after driving.
before driving.
None of the above.
2. You hear a loud "bang" which sounds like a tire blowout. You should:
inspect your tires with your mirrors.
check the tires at the next stop.
keep driving as normal.
assume you have a tire failure.
3. ABS malfunction lamps are located:
on the instrument panel.
on the driver'door.
under the hood.
None of the above.
4. If a bus has a restroom:
the restroom must have an emergency exit.
the restroom emergency buzzer must be in safe working condition.
the restroom must have a window.
All of the above.
5. To ensure passenger safety during loading and unloading, bus drivers should:
allow passengers enough time to sit down or brace themselves before departing.
start and stop as smoothly as possible.
always ensure that passengers are safely on the bus before closing the door(s).
All of the above.
6. If a worker is close to the roadway in a work zone, you should:
pull off the road and stop.
reduce your speed below the posted speed limit.
drive on the shoulder.
drive at the posted speed limit.
7. When crossing railroad tracks, you should:
stop on the tracks.
stay in your lane.
apply the parking brakes.
shift gears while crossing the tracks.
8. The overhead inside rearview mirror is:
mounted on the left front corner of the bus.
located below the outside flat mirrors.
mounted at the side of the windshield.
mounted above the windshield on the driver's side area of the bus.
9. When approaching a stopped school bus, drivers must be aware that:
the bus may suddenly start up and drive into your way.
students may start to get out of the bus.
passengers may cross in front of or behind the bus.
All of the above.
10. When unloading the students, you must:
tell students to exit the bus and walk behind the bus.
avoid counting the number of students while unloading, as this is a waste of precious time.
wait until all students are seated and facing forward before moving the bus.
have the students remain seated until they are told to exit.
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MD CDL School Bus Test

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