Interview

I went for interview this morning, and I think this is the interview that I get to answer question that involved mechanical and chemical solution. Hah, I was given some diagram and asked what do you know about this? Heck, I forgot all that or precisely I have no idea any of those questions or any terms and that I don't recall back any of the physics law or whatsoever. The answers were flow rate and volume. I think I just humiliated myself in front of the interviewer. Then, he asked me about calibration. "What the ---- ?" Haha, I said this is about "bla bla bla", an uncertainty answer came out from me, because clearly I also don't know what is that and how to calibrate it? I think it's pretty obvious how I don't know any of those. I tried to think of a suitable answer but I can't seem to think of one. Hm, so yea, that's how my interview goes. He said he will inform my application status in this two days. I don't know.