Is it acceptable to present the same project at two conferences and list them separately on my CV?
When I give the same talk in multiple venues*, I list the title of the presentation once, then underneath all the places I've presented it. For example: 


  On the use of nanofibers in basket weaving
  
  20th Annual Meeting of the Society for Basket Weavers (July 2016), Department of Basket Weaving Seminar at East South University (August 2016), Workshop on Innovative Use of Nanofibers (October 2016)


If it's a different presentation (e.g. different title), even if part of the same project, I'd list separate entries. 



* Only at venues which accept work that has already been presented, of course.