I applied in-person. The process took 1 day. I interviewed at The Drawing Center (New York, NY) in June 2014
Interview
The Director and Deputy Director of Administration will both interview you at the same time. They ask a few questions about your background and interest in art and that's essentially it, from what I remember. A fairly quick and easy interview.
Interview questions [1]
Question 1
You won't encounter anything difficult during the interview. Both interviewers I had were pretty laid-back.