So, there's that saying, "stay quiet and be thought a fool; open your mouth and remove all doubt." In a team meeting, it's easy to feel like you'll not only look foolish because you asked a question that everyone else knows the answer to, but you're also wasting everyone's time.

I certainly remember feeling that way when I was a junior engineer. It was kind of a shock to me when I realized how many others generally had the same questions I did.