Free S3 Practice Questions

1 exam-style questions with answers and explanations. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.

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The S3 exam has 50 questions and runs 1 hour.

Question 1

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AA BB CC DD

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Correct answer: A - A

What's on the S3 exam

The School Bus Certification - S3 Drive Train (S3) exam is organized into 3 knowledge domains. These free practice questions are drawn from across them so you can see where you're strong and where to study:

Automatic Transmission Diagnosis and Repair 70% of exam
Drive Shaft and Universal Joint Diagnosis and Repair 13% of exam
Drive Axle Diagnosis and Repair 17% of exam

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