Thereof, what questions does a Beit Din ask?
You can be asked literally anything. I was asked a few uncomfortable questions during a meeting with a Beit Din: -is the reason you're not married at 34 years old that you're gay? -have you had sexual relations in your past that would be forbidden by Torah? -have you had a vasectomy?
Also, what is a din Torah? A Din Torah is a formal proceeding. The parties must speak in turn and must address all comments to the rabbis. Improper conduct at a hearing is an affront to the dignity required by a proceeding defined by Torah principles.
Subsequently, one may also ask, why is the Beit Din important?
A beth din is sometimes used within the Orthodox Jewish community to resolve civil disputes, with the Shulkhan Arukh calling for civil cases being resolved by religious, instead of secular, courts (arka'oth).
How long does an Orthodox conversion take?
Once the person has converted there is no going back, no no longer being Jewish. It is permanent and the person is forever after a Jew, and if a woman so will her children after the conversion be. For someone who doesnt know anything about Judaism, lets say 5–10 years for Orthodox.