1) You will be able to see their name in the tool, and they will likely say it. Write it down. Find them on LinkedIn later and send them a message thanking them for their time! If possible, flag some specific topic/content they discussed and how you find it interesting.
2) This sounds good - always a hard one! Maybe just flag why consulting interests you as well.
3) Good questions. Also, a followup question to something they've said (or an answer they've given to another question) is always great. I.e. not prepared. If you can come in with an insight, and ask a creative + relevant question that sticks to the theme, you can impress them! Nothing worse than a barrage of pre-prepared generic questions!
What I mean is, if someone asks about their most interesting project (generic, standard question), and they talk about autonomous cars and helping an existing car manufacturer with an AV company acquisition, then, followup by saying "Do you think, fundamentally, that old car manufacturers with their old ways of working can get around the AV problem by just acquiring an existing company? Is the best method to acquire and then just give them access to capital and mass-manufacturing + legal know-how, or is it better to try and integrate the company into the existing organisation?"
^Ask these kinds of questions to impress!
4) Again, I much prefer approach #3. Also, balance the questions...i.e. don't hog the conversation, but also don't be quiet the whole time.
5) Doesn't matter. Whichever question you'd like answers to
6) Probably not worth it. As you mentioned, you can find that out here or through HR.
7) (My own point). Remember, this is just as much for you as it is for them! Ask questions that you genuinely want answers to. Find out if the company is a good fit for you. You're interviewing them just as much as they're interviewing you!