I applied online. The process took 5 days. I interviewed at Koch (Wichita, KS) in Jan 2010
Interview
They take it seriously! Interviewers receive extensive training. Questions asked are purposeful.
You meet 4-5 of your peers while interviewing. The interview process is 4 hours long.
Interview questions [1]
Question 1
None were that difficult but were regarding past work experiences. Recalling specific information can be difficult when you are nervous. They really seem to want to get to know you.