While CDL standards are federal, the actual exam questions may vary slightly from state to state.
Questions in set
40
Per attempt
20
Passing score
16
Explanations
Every question
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What vehicle inspection items are specific to the School Bus test?
Beyond the standard passenger-vehicle checklist — passenger entry and lift, emergency exits, passenger seating, and monitoring devices — the School Bus inspection adds three items unique to this endorsement: front and back student lights, the stop arm and safety arm, and the first aid and body fluid kits. These sit under the federal category of “operating practices and procedures” that the S-endorsement knowledge test covers beyond the P-endorsement baseline.
This test draws from our full School Bus question set and covers all exam topics, including vehicle inspection. 40 questions in the set, 20 per attempt, passing score 16.
