[GaryVoshol]

An FLL judge advises, "If the judge asks, 'Is there anything else you want me to know about your robot?' you never answer 'No'. There is always something more for you to say."

That would apply to FRC judges as well.

I once judged at an off-season competition. I asked someone to tell me about the robot, and she hemmed and hawed without giving me any useful information. I didn't get an opportunity to revisit the team later, so the team wasn't considered for a robot award by me. If a judge asks you a question that you don't know, admit it, but then introduce the judge to someone who does know the answer.