First and Foremost do not have any fears about this one. Its pretty straightforward Interview if your application is fair.
In my case the Consulate Officer just asked about the Company for which I will be working. Its location, my Highest Qualification and how did I get the offer.
He granted me the Visa then without asking for any Documents.
Just pray before you appear for the interview and most important:
Be Confident, it will sail you through.
You can reach me at : email@example.com