Here are some of Q's : Do you have a job lined up? How long did you live in the US (I have lived there previously)?, Who is funding your endeavor? Where are you going to in the US and why that location? What is the connection between your experience and your endeavor? Do you have experience in the field of your endeavor? The interview itself took about 8mins (Q&A plus typing). I spent a total of about 45mins (security, doc submission, waiting) at the embassy. Very efficient!