this Tuesday? id get revising if I where you, should be in 2 parts, if I remember rightly, part 1 is fault finding and group bourdon and part 2 (done on a separate day) is trainability part 1 + 2, dtg reactions test (colours and sound reaction) and structured interview. For this Tuesday (if you have part 1) just focus on revising fault finding and group bourdon. Should say on your appointment letter what you are being tested on. You can download the group bourdon programme off the net if you go to google and type in 'Group Bourdon' and/or 'Digital Reality'.