I've been given a date and time (Monday, 1330 hrs) that I must attend $PRESERVED_RAILWAY to be assessed in the post of Signalman. If all goes well, I can drop the word "Trainee" when I answer the phone.
Well, I passed, but the assessor wasn't too convinced that I really knew my stuff; had this been the "real" railway, it would probably have been back to the classroom.
OTOH, where he and I disagreed on the answer to something, I've been back to the rulebook, and found I was nearer right than he was.
Off-topic: Sunset over the Malverns is spectacular. Huge black cloud, sun peeking out below. Throwing a shadow of the train onto the fields, with the wheels and underfloor stuff clearly visible.