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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. Brakes out of adjustment can cause the other brakes to:
overheat and fade.
last longer.
work better.
apply more braking power.
2. To recognize distracted drivers, you should watch for all of the following except:
Vehicles traveling at inconsistent speeds.
Drivers who are involved in conversations with their passengers.
Drivers talking on the phone.
Students sitting on a bench waiting for a bus.
3. If there is a serious behavior problem on the bus, you should:
ask the student to move to the back of the bus and be respectful of others.
stop the bus in a safe location off the road, secure the bus and remind the offender of the expected behavior.
keep checking the rearview mirror to write an accurate report of what happened.
pull the bus over and put the student off the bus.
4. School buses:
are only equipped with ABS when transporting students.
are never equipped with ABS.
are only equipped with ABS if built after March 2010.
may be equipped with ABS.
5. When approaching a school bus stop, you should activate alternating flashing amber warning lights at least ________ before the stop or in accordance with state law.
400 feet or approximately 10-20 seconds
200 feet or approximately 5–10 seconds
100 feet or approximately 3–5 seconds
800 feet or approximately 20-40 seconds
6. If you realize you are going to be later to your destination than you expected, you should:
exceed the posted speed limit when no other vehicles are near.
deal with it and accept the delay.
speed up.
do your best to avoid the delay.
7. If the school bus is equipped with a handicap lift, you should:
look for damaged, leaking or missing parts and make sure that the lift is fully retracted and latched.
look for cracked drums.
look for bent, loose, or broken parts, such as tie rods.
test what happens under braking conditions.
8. When backing, you should:
only use mirror on the driver's side.
use the mirrors on both sides.
back and turn toward the right side whenever possible.
back quickly.
9. 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.
10. If you cannot make a right turn without entering another traffic lane, you should:
watch out for vehicles coming toward you and back up for them.
swing wide to the left before starting the turn.
turn wide before you start the turn.
turn wide as you complete the turn.
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MD School Bus 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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