what kind of meat is used at carving stations? If I go into a cafeteria and they have a hunk of meat on a carving board that the cafeteria is calling "roast beef"; generally what cut of meat is used? The cafeteria slices it very thin about an eighth or an inch.  the serving size is 1 to 3 slices.  

I know it is not Prime rib.  it is cut too thin to be Prime rib.
Most buffets serve "steamship round" which is whole round, or the top round--because they are relatively inexpensive.  I have no experience with the particular restaurant named.

However, the question IS vague and there is a lot of variation.  Restaurants serving prime rib at the carving station usually make it quite evident.