Convertros interview questions

Final interview with the CEO, was not great at all. Couldn’t hear or understand him as he was far away from the microphone. Even I was using my expensive noice cancelation headphones. I was asked if I had any questions so I asked a lot of questions. Then he asked me if I had received the PdF file prior from the interview I said yes. He said all the information is on there. I wanted to get some things clarified that’s all. He seemed very irritated that I was double checking everything I read was correct and still stands. Also something’s that were mentioned in the pdf file wasn’t really explained properly on how things worked. At the end of the interview I already new I didn’t get the job cause it made it sound like I didn’t know anything and I had asked to many questions and the body language of him being irritated.