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The film presents the construction of an engine piston and basic information about the types of pistons and the material from which they are made. In the comments section, I am waiting for suggestions for questions that can be asked to summarize the film: Questions: 1. Name the areas of the piston. 2. What materials are pistons most often made of? 3. Name the types of piston rings. 4. Name the basic differences in the construction of pistons from SI and CI engines.