Hi! Good luck with your DMI.
First of all:
* they'll introduce themsleves and the company
* talk through some details about expectations and the training
* establish how much you will be paid at different parts of your training and when it is finished
* ask if you consume illegal substances (if a very short interview is your priority, just answer "yes"!)
* confirm you still live at the same address, discuss how you will get to or from work
* establish the times of work (ie from any hour to any hour on any day) and ask how that would fit into your life-style
Then:
* They will ask you to tell them a little about yourself. This question is a gift if you've prepared well because you can tell them everything you want them to know about you. You can tell them what skills you have (linked to being a train driver) and hopefully evidence these with examples from your previous career. This is your chance to advertise yourself and create a very positive first impression. They say that you should talk for up to 5 minutes on this question, but I couldn't get my answer in under six minutes when rehearsing. However, it was relevant, coherent, evidenced and except for a two sentence summary, not repetitive. At interview, they seemed really impressed! See also:
* They will ask you what a train driver does. Of course, if you've read these forums, you'll be able to talk lots about this!
* Why do you want to be a train driver? Link your answer to the skills you possess (preferably evidenced) which a train driver needs.
* They will ask you what you know about the company.
* They will ask you about previous safety-critical roles and what rules and procedures you follow(ed) in your current/previous jobs.
* They will ask about when you've had to learn new things.
Then:
* They'll ask some MMI-type of questions (competency-based). So prepare for these.
Then:
* some more questions (can't remember what, but they get easier)
At the end, they'll ask you if you have any questions for them - it's a great opportunity for you to show passion for the role. However, beware that they tell you a lot of information at the start so think of enough questions that they'll not going to answer them for you then!
Hope this helps!
Good luck!