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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 Delaware school bus test, and you must also pass skills tests in a school bus. The DE 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 Delaware CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this DE CDL practice test to prepare for the actual bus test!
1. You should NOT use the parking brakes if:
the brakes are too dry.
the brakes are very hot.
the brakes are cold.
All of the above.
2. When driving a school bus in strong winds, you should:
Keep a strong grip on the steering wheel and try to anticipate gusts.
Speed up to get away from the wind as quickly as possible.
Avoid pulling off the road to wait.
All of the above.
3. If the drive wheels begin to spin when accelerating, you should:
set the parking brake.
continue to accelerate.
brake gently.
take your foot off the accelerator.
4. The ABS malfunction lamp on the instrument panel is:
5. When students load and unload, what should the driver do?
ask the students to be quick.
plan the route.
supervise the process.
All of the above.
6. What should you do if your vehicle starts hydroplaning?
Leave the road completely.
Apply the brakes and countersteer to regain control of the vehicle.
Accelerate slightly, then push in the clutch to slow down.
Release the accelerator and push in the clutch to let the wheels turn freely.
7. When driving in heavy traffic, the safest speed is:
slower than the speed of other traffic.
the posted speed limit.
the speed of traffic.
slightly higher than the speed of other traffic.
8. The average driver has a reaction time of:
3/4 second to 1 second.
1/8 of a second.
1/32 of a second.
1/16 of a second.
9. When checking the bus seats, make sure that:
they are securely fastened to the bus.
they are safe for riders.
they have not been damaged.
All of the above.
10. To avoid a hazard:
steering away from what is ahead may be the best thing to do.
driving on the shoulder of the road is always the best thing to do.
changing lanes is always the best thing to do.
stopping is always the best thing to do.
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DE CDL School Bus Test

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