I think if you are widely read on Awops and know your way around the Jepp you will be fine. I have heard of guys being asked to draw an ALSF II type lighting system(in colour) but I think that style of interviewing MIGHT be behind us....
Dont stress just be honest and if u dont know the answer then say so....
For the sim check(B737-200) they give you the stuff (profile of whats going to happen)....you dont need to know flap speeds or SOPs of the a/c (if u not rated on it)....I suppose they just want to see your handling ability...
I may be wrong but this is how it happened afew years ago...