I was asked by an interviewer "How do you model a nozzle and related piping?"
"Modeling the equipment and nozzle, CNOD flange of piping..." I replied.
He was like "No, you assume piping and nozzle are anchored together. It's wrong. Piping is very flexible at this point"
Unfortunately, he did not explain me how I should model it.
Have I been always wrong?