Not all surveying crews are working with or under the supervision of a RPLS.
Boundary work requires a RPLS or LSLS.
Visit the TBPLS website and download the acts and read cover to cover.
Then some answers will be vivid and more will come.
Many you will have to research within yourself and ask, can I do this.
Surveying is something that is learned by doing and looking over shoulders of those that do it well much more than by expecting to ask many questions at work.
Driving time to an from job site with the crew is a good time for howto conversations.
One of the best lessons is after looking for that nail or monument for an hour, the boss drives up and within 5min is standing where it is and calling you over to prepare the location for a setup.
I visit every job. Walk it around (by ATV probably) and give assignments as necessary for the daily task and it is work time. I do not stay at the jobsite as long as the crew (when I have a crew).
When there something you don't understand, ask for help.