1st one asks about personal info: Do you have own transport, have you applied before, do you live within 60 mins of depot applied for etc.
2nd one is regarding preferences: Asks you to choose answers between strongly agree and strongly disagree, and was things like, do you like working in a team, do you prefer to work at a desk, do you like to be supervised, do you like structured day etc.
3rd is Priorities - Driving: Asks you to choose what you think are the 3 most important and 3 least important driving tasks from a pre-defined list (thinkgs like driving a train safely, following rules and regs, giving good customer service etc)
4th is an SJT with 9 different scenarios.
Hope that helps