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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. How can you tell if your vehicle is equipped with ABS?
Trailers will have yellow ABS malfunction lamps on the left side.
Look under the vehicle for the wheel speed sensor wires coming from the back of the brakes.
Look for yellow ABS malfunction lamps on the instrument panel.
All of the above.
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.
150 feet
100 feet
25 feet
50 feet
3. When changing lanes, you should:
not use your mirrors.
do it quickly.
not use your turn signals.
None of the above.
4. You should use the overhead inside rearview mirror to:
see what is happening on the bus.
to monitor the left and right sides of the bus at a wide angle.
to monitor traffic and check clearances.
see the front bumper "danger zone" area in front of the bus.
5. When unloading students, a bus driver should:
check around and underneath the bus.
tell students to exit the bus and walk to a position where they can plainly see the driver.
count the number of students to confirm the location of all of them before pulling away from the stop.
All of the above.
6. Buses must never carry:
irritating material.
emergency hospital supplies.
small arms ammunition labeled ORM-D.
All of the above.
7. After an accident, an improper use of flares could cause:
the vehicle to slide back and forth.
the springs to put on the brakes.
air pressure to build from 50 to 100 psi within 2 minutes.
a fireĀ if spilled fuel is on the ground.
8. When students board, you should:
check all mirrors.
count the number of mirrors.
close the door.
announce the next stop.
9. During unloading, if the school bus driver cannot account for a student outside the bus, the driver should:
secure the bus, and check around and underneath the bus.
walk through the bus to ensure the students is not on the bus.
assume the student got back on the bus.
All of the above.
10. When driving in very hot weather, the heat will increase the chances of:
loss of hydraulic pressure.
suspension system defects.
ABS malfunction.
tire failure.
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MD School Bus CDL Test

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