IIRC for Single vs Double the difference is they will enforce the “form of a question” part. In either round, they will let you mangle the pronunciation as long as you don’t insert or omit phonemes beyond what could reasonably be the result of only having read the word.

So “Alexander Dumb-ass” would be fine, though you’d likely get some gentle chiding, or maybe even have to refilm the question (“portions of the show not affecting the outside have been edited”) afterwards, but if you were expanding NASA and left the ‘s’ off the end of “Aeronautics,” it would be wrong.