How to put down a tolerance on the shapes and arrangement of surfaces?

Question

AutoCAD

I read about shape tolerance and surface arrangement.
For example, I draw a detail, how to understand what tolerances are needed and what numbers are needed there?

Answer 1

Don't answer specifically. Here, firstly, you need to study the subject "Tolerances and Landings" for a year at a technical school or university, and secondly, the requirements depend on the subject area.