Extron Electronics Component Engineer interview questions

They called me over phone and asked me to meet in the lobby at 10 am on Monday morning. It was weird interview invitation. They asked me to take down the address in the note. No email! First round was soo good! Its with manager, he asked me to identify the components in the PCB and 3ft x 4ft big circuit diagram and asked me to calculate the voltage gain and identify the components. I answered everything. Second round with HR on some other day. It's the most important round. She is very ruthless human resource person, I have ever met in my life. If i ever meet her again, i would beat her blue and black. she doesnt want to hear any extra word other than in a single word. so be precise. I was upset for two days because of the way she behaved. But the first round who interviewed me are so good. I was so glad when they told me couldn't offer. I was so excited and said thank you thank you, twice! Never ever in Extron!