Fanuc / Robotics Expertise Questions for Candidates

You can ask if the cartesian coordinates of a point would change if you change the active tool; What would be the advantages of Teaching a User Frame in an application...

Have them create a small program. It will be obvious if they can do it or not.

Changing batteries correctly or mastering after e.g. a BZAL alarm. This is a classic one and many people out there seem to have problems with it (at least according to the number of questions regarding this topic in this forum).