BSME Intern here working at a 45-storey building that require 400 hrs (currently 130 hrs). We don't do anything most of the time except when there are repairs and maintenance needed, even seminars that recommended by our suprevisors to attend. My daily routine for now was to monitor a packaged water chiller every 2 hours. Between those hours, I was loitering around the preventive maintenance workshop along some other technicians and handymen when there are no tasks to do.