I would be careful about asking the MOC committee questions about the SA itself. Being on an MOC nom committee does not mean you know anything about the SA for which you're interviewing.
Some folks have ties to a service or a SA but not necessarily the one for which they're interviewing and some may have no military ties at all. For example, years ago my parents served on our MOC's West Point nom committee (there were separate interview teams for each SA) when neither had any ties to WP or the Army (though they had ties to the military). Even if they are a grad, they may not stay up to date on all things connected with the SA as, unlike BGOs/ALOs, etc., there is no expectation that they are experts on the SAs for which they are interviewing.
Thus, you don't want to put the interviewers on the hot seat by asking them a questin to which they don't know the answer -- and many not have any way of knowing. Instead, I would stick to questions about the nom process for that MOC. For example:
"Approximately when can I expect to be notified?"
"How many vacancies at [this SA] does [the MOC's name] have this year?
"Do you know how many of [the MOC's] nominees to this SA last year ultimately received appointments?"
"Does [this MOC] give principal nominations or use a competitive slate?"
"If I earn any additional honors/awards between now and when notifications are made, am I permitted to submit them?"
"If you're able to say, how many applications did [this MOC] receive for [this SA] this year?
Questions about the SA itself should be directed to your BGO/ALO, etc.