Tower Engineering interview questions

first I had a short phone screen for 5 mins after a week I was asked to go onsite for an interview, it takes one hour, the recruiter asked about some PE civil quiz questions and job-related questions, I didn't answer all the question, the recruiter was very patient.

The process was very casual and so was the office environment. I liked the casual way about the work place there as well as the few people I got to interact with.