As a TRI on the aircraft type I believe Centaurus is refering to I cannot see much benefit in deliberately setting a scenario where you cannot reasonably expect the trainee to get down due to the limitations of the sim. If you want to see a go around then by all means obscure things on final or instruct him to go-around at some point earlier.
More likely are either finger trouble from the instructor in setting things up like the winds and a sensible airport or the trainee not following the procedure. If you are at normal circling height, fly the correct time from abeam and are fully configured the autopilot should fly you round into a position you can intercept the glide. If not the examiner is playing games.
I am sure 411A would have loved to tell us how real men did it in times past on the mighty threeholers. These days it is a pretty straightforward procedure, but one people seem unnecessarily nervous about, probably because they do not do them often enough.
Last edited by lederhosen; 18th July 2011 at 18:01.