Place it right on the answer reveal, after a Windows XP Error Sound Button moment for a wrong guess, then follow the correct hit with a Mayuri Tuturu Sound Button reaction to keep the quiz rhythm going.
Über diesen Sound
This is a 1.2-second voice clip of Ryougi Shiki saying pinponpanpon, the sing-song sound of a correct-answer chime spoken out loud. Hearing her deliver it so flatly feels funny and oddly satisfying, turning a simple right answer into a deadpan celebration. It comes from the Fate/Grand Order Kara no Kyoukai collaboration event.