Taking this a bit further then......I appreciate the comments made by DanceswithBoffins that an ATCO needs to "understand" various things about the a/c.
So, why is it useful to know how many seats an a/c generally has, or it's speed, cruising alt, typical routes and operating airlines?
I can see why these things are useful, but I can't really get why they are vital or important.
Unless, of course, this stage of selection is just to see how well we can study and memorise data.