Guys,
Don't worry about the time you spend in there. It does not gauge whether you move on or not. It's the quality of answers you give. Some spend a lot of time talking about themselves or explaining a point. Some get more questions than the rest. Some have flying background and may be asked more technical questions even.
From what I know, people with no flying experience will have very limited flying knowledge. They don't really penalize you on that but as I said, it is how you answer. They don't expect you to know everything.