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Cheat sheet
Question
Friction in an S-cam brake is caused when the brake shoes and linings:
Answers
A.  Press against the outside of the brake drum.
B.  Press against the inside of the brake drum.
C.  Push against each other.
Explanation
Friction inside a brake drum is caused when the brake shoes and linings push against the inside of the drum. The friction in the drums will slow and stop the vehicle.

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