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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 Indiana school bus test, and you must also pass skills tests in a school bus. The IN 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 Indiana CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this IN CDL practice test to prepare for the actual bus test!
1. Regrooved tires:
cannot be used on the rear wheels of buses.
cannot be used on the wheels of buses.
cannot be used on the front wheels of buses.
None of the above.
2. During unloading, if the school bus driver cannot account for a student outside the bus, the driver should:
assume the student got back on the bus.
walk through the bus to ensure the students is not on the bus.
secure the bus, and check around and underneath the bus.
All of the above.
3. A school bus driver must evacuate the bus when:
the bus is stalled on a railroad crossing.
you have pull off the road and stop.
the ABS is not working properly.
the bus is stalled on the shoulder of a 4-lane divided highway and it's snowing.
4. When driving on a slippery surface, you should do all of the following except:
adjust braking to conditions.
not pass slower vehicles unless necessary.
keep a shorter following distance.
watch far enough ahead to keep a steady speed.
5. As you approach off ramps and on ramps, remember:
to always brake and turn at the same time.
that downgrades make it easier to reduce speed.
that the posted speed limit may not be safe for larger vehicles.
to maintain your highway speed.
6. Proper adjustment and use of all mirrors is vital to the safe operation of a school bus:
in order to monitor the danger zones around the bus for students, traffic, and other objects.
in order to have the students exit in orderly fashion.
in order to see 500 feet or 10 bus lengths behind the bus.
All of the above.
7. How many drinks per hour can be handled by the liver?
About 1 drink per hour.
About 4 drinks per hour.
About 2 drinks per hour.
About 3 drinks per hour.
8. 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.
100 feet
150 feet
25 feet
50 feet
9. During an emergency student safety is generally best maintained by:
having the students stand at least 50 feet off the road in the direction of oncoming traffic.
keeping students on the bus.
leading students downwind of the bus if fire is present.
leading students as far away from the bus as possible.
10. The ABS malfunction lamp on the instrument panel is:
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IN 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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