Here is an example of an FAQ page with FAQPage schema applied with Microdata markup using an accordion style interaction.
With custom attributes set on the accordion wrapper, accordion item, accordion heading and paragraph text.
To get rich results in search results.
Rich results are experiences on Google surfaces, such as Search, that go beyond the standard blue link. Rich results can include carousels, images or other non-textual elements.
You can use the Rich Results testing tool by Google to validate it's setup correctly.