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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 Massachusetts school bus test, and you must also pass skills tests in a school bus. The MA 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 Massachusetts CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this MA CDL practice test to prepare for the actual bus test!
1. Before crossing railroad tracks you should:
open the service door and driver's window to look and listen for approaching trains.
stop no closer than 100 feet from the nearest rail.
stay to the left of the roadway if possible.
place the transmission in first gear.
2. Engine oil pressure should come up to normal within _________ after the engine is started.
ten minutes
five minutes
two minutes
3. The outside convex mirrors are located:
above the outside flat mirrors.
above the windshield on the driver's side area of the bus.
on top of the bus.
below the outside flat mirrors.
4. You are driving a school bus, When approaching a railroad crossing you should:
stop no closer than 5 feet from the tracks.
activate the 4-way emergency flashers.
change lanes if possible.
cross the tracks in a high gear.
5. Texting while operating a commercial motor vehicle is:
acceptable if you are contacting your dispacther.
only allowed at night.
acceptable if you are contacting your supervisor.
6. When inspecting the vehicle, make sure that:
if equipped, the stop arm is mounted  securely  to  the  frame  of  the  vehicle.
all internal and external mirrors and mirror brackets are not damaged.
all emergency exits are not damaged.
All of the above.
7. When approaching a school bus stop, you should:
activate amber warning lights.
continuously check all mirrors.
approach cautiously.
All of the above.
8. When driving on slippery roads, you should NOT:
watch far enough ahead to keep a steady speed.
use the engine brake.
go slowly.
try to anticipate stops early.
9. While crossing railroad tracks, you should:
shift up.
shift down.
stop, then look and listen for the train.
not shift gears.
10. When driving on slippery surfaces, a lack of spray from other vehicles indicates that:
there is no ice on the road surface.
the road hasn't started to ice up yet.
the pavement is dry.
ice has formed on the road.
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MA CDL 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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