I can't belive it's part of the selection progress as there might be thousands of candidates...
Read carefuly the advert. As Zerotimer noticed, You must posses a valid Romanian Passport to take a part in this particular recruitment!
What does it mean the above sentenced quoted from you with your reply?
I think doesn't make sense.
Let say you're right, as they ask for Rumanian Passport, what do you think they(Wizzair staff) will do if that day a lot of Rumenian Pilots will be present??..Interview all of them??
Of course not..every open day is different, but every one I think will have the opportunity to leave his Resume and if possible, a chance to have 5 minutes to talk with them and to give the best impression of you in the way that after selection of the Resume you'll be one of the candidate to be able to be assessed that day!
And if you read carefully the Wizzair post, at the end, they add:
"Even if you do not meet the minimum requirements now you are still welcome, perhaps you may become a WIZZAIR pilot in the future!"
So said, that is english, and it's simple clear!
I believe if they want only Rumenian candidate, they should put as minimum requirement the Rumanian Language and not the passport!
If you do not try you'll never know how it will end.
Just my thought!