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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 Iowa school bus test, and you must also pass skills tests in a school bus. The IA 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 Iowa CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this IA CDL practice test to prepare for the actual bus test!
1.
Rough acceleration:
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improves gas mileage.
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is necessary to warm up the engine.
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can cause mechanical damage.
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2.
The heavier the vehicle:
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the higher the center of gravity will be.
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the less work the brakes must do to stop it.
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the more work the brakes must do to stop it.
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3.
When approaching a school bus stop, you should:
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activate amber warning lights.
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continuously check all mirrors.
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All of the above.
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4.
When driving, you should check your mirrors:
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regularly.
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every 10 seconds.
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only when there may be a problem.
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5.
If your vehicle has power steering, during your pre-trip external inspection you must check that:
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there are no power steering fluid leaks or damage to the power steering hoses.
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the engine rpm is down close to
idle.
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there are 2 lit red lights indicating it's there.
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6.
School buses are:
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one of the fastest forms of transportation.
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one of the safest forms of transportation.
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the most efficient vehicle on the road.
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7.
When loading and unloading students, drivers of a school bus should check their mirrors:
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After entering the traffic.
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Continuously
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After closing the door.
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8.
If you cannot make a right turn without entering another traffic lane, you should:
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turn wide before you start the turn.
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turn wide as you complete the turn.
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swing wide to the left before starting the turn.
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9.
You are driving a school bus, When approaching a railroad crossing you should:
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activate the 4-way emergency flashers.
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stop no closer than 5 feet from the tracks.
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cross the tracks in a high gear.
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10.
When stopping, you should bring the school bus to a full stop how many feet away from students at the bus stop?
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At least 5 feet
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At least 50 feet
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At least 10 feet
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