Originally posted by Peter_1
And also, that you are not ashamed to ask for advise and that you realise that you can't know everything.
Yes, indeed. But if I had to go on hands-on training with engineers who install too large orifices and turn up the superheat to make things work, and they give an acceptable answer about the reason, then I would not know that I am doing things wrong....

The result: I would be just another 'bad' engineer.

And that is the problem with hands-on training, unless it is administered well.