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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 Texas school bus test, and you must also pass skills tests in a school bus. The TX 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 Texas CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this TX CDL practice test to prepare for the actual bus test!
1. Brake fade results from:
excessive smoke.
excessive speeding.
excessive wear.
excessive use of the service brakes.
2. The overhead inside rearview mirror is used to:
monitor the blind spot area directly behind the driver’s seat.
allow congested traffic to disperse.
perform a safe stop at designated unloading areas.
monitor passenger activity inside the school bus.
3. When approaching an emergency vehicle stopped on the side of the road with lights flashing, you should:
move to the lane not next to that of the emergency vehicle.
yielding the right-of-way by coming to a complete stop.
stay in the right lane.
speed up.
4. Properly adjusted outside left and right side flat mirrors allow the school bus drivers to see _____ behind the bus.
200 feet
300 feet
50 feet
100 feet
5. When parked on the side of the road, you should:
use the 4-way emergency flashers.
activate the right turn signal.
flash your brake lights.
turn off all lights.
6. If you hear a loud loud "bang" and the steering feels "heavy", you should:
brake hard and pull off the road.
pump the brakes until the vehicle has slowed down.
hold the steering wheel firmly and stay off the brake.
check your rearview mirrors to see if you have a flat tire.
7. Regrooved tires:
cannot be used on the rear wheels of buses.
cannot be used on the front wheels of buses.
cannot be used on the wheels of buses.
None of the above.
8. Drivers should adjust their mirrors:
after driving.
before driving.
while driving.
None of the above.
9. Pre-trip inspections:
should not be done when a vehicle inspection report is available.
are optional when the driver is familiar with the vehicle.
should always be done in the same order.
should not be done unless the vehicle has problems that could cause a breakdown.
10. When driving in fog, drivers should:
use windshield washer antifreeze.
use high beams.
use the windshield wipers.
use low beams.
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TX 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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