An interesting question. Personally I just listened to some advice I read on PPrune and just answered quickly without thinking too much. Too be honest it was the easiest and most relaxing of all the tests... I'd me more concerned about your flying skills, interview technique etc.
Oh yeah, and speaking to a few of my friends who just had interviews in the U.K. as well as the usual tech and personality stuff they are asking questions about political view/ world politics and throwing in some random metal maths questions e.g. you are 5 miles out on a 3 deg ILS into an airport at 1500ft AMSL, what altitude are you at. Not difficult but might catch you out under the stress of the situation.