Caterpillar Graduate Engineering Trainee GET interview questions

It was for a purchase engineer role that I was interviewing. The first round was an aptitude test consisting of a mix of mechanical, logical and English questions. The second round was a group discussion, it was pretty easy. The third round was a the final interview. It was a mix of technical and hr round. The questions asked in the interview were mostly based on GD&T topics. They went into a lot of depth on the design questions.