@ hentailover6983 if this is the setting. there would be a male educator used his dick to grade the female students. unless there is no male educator in rwby then don't know, they don't have to take this exam?
There are male professors in RWBY, though they primarily teach the non-combat classes, even though they are all veteran warriors themselves. Glynda Goodwitch is the main (only?) combat professor who specifically watches over the students for battle trials.
My thought was that they'd have to make her orgasm, or pleasure themselves, at a skill level that she finds acceptable.