Earlier quoted context omitted.
But that's not how they ask. It's usually something like "would you have a problem convicting the defendant of the crime they are accused of if you were convinced beyond all reasonable doubt that they had, in fact, committed said crime?" They don't say "Do you know what jury nullification is?"
Keyword: would (not will). No perjury. And if they use "will", it's perfectly normal to wonder why one would ask such a strange question. It would totally read as "we're gonna find a case to test you on that teehee".
I hope you’re never on a jury: you don’t seem like you take it seriously and you should when it impacts other people’s lives.
“Would” is a form of “will”, and haggling tense to “avoid” perjury is deeply dishonest — and probably still perjury.