You would typically get TRP 1 & 2 (Trainability for Rules and Procedures), Group Bourdon (3 rounds), they don't tend to use SCATT for Drivers but it's paper based usually, TEA-OCC (Test of Everyday Attention for Occupational Assessment), Mechanical (if applies), Train Driver Fault Finding and THAT'S ROUND ONE! LOL..
Best thing to do is just do your best regardless, it's not impossible you just need to stay focused on the task at hand. Every second counts in these tests!