Two interviewers, one of them inpatient and really rude. Shooting questions and demanding answers under pressure. The other one was disgusted by his fellow and tried to correct the total impression. Overall the difficulty of the interview was hard. Engineering dynamics and mechanics of materials is the basis to pass this kind of an interview. FEA knowledge was checked too A lot of patience is needed to stay focused and just don't pay attention to the rude and arrogant interviewer. It's was a part of their checklist.