I applied online. The process took 4 weeks. I interviewed at Worcester Polytech in Mar 2010
Interview
I sent an application for graduate school which resulted a phone interview. I was then invited for two days where I was shown around the school and building I potentially would be working in and meet several Professors who told me about their work. A few weeks latter I received an official letter of acceptance as well as my Teaching Assistant scholarship award letter.
Interview questions [1]
Question 1
They didn't really have a hard interview process, nothing really stands out. I think at that point I was basically accepted in the school.