ExxonMobil Engineer interview questions

There were 3 people in the interview room, 2 engineers and an HR personnel. Asked about some challenges faced during internship and projects in school. Only the HR show signs of interest during the interview while the others did not display any emotion throughout the interview. The interview lasted for around 45 minutes.

I applied for a general engineering position at PhD level through campus info session and received a follow-up interview on campus approximately one week later. The interviewer was one of our alumni but not from my area of study. The interview lasts for about 45 minutes. After the interview, I was told my resume will be routed to related department and I will be contacted provided that there are any potential positions. After two months, I received the rejection email.