To properly answer this question, make sure you understand the reasons why feasibility studies are important. In essence, a feasibility study helps to determine if conditions are right to implement a project. The study looks at economic, operation, legal and technical aspects of the project to determine if moving forward with the project is best for all involved. If you have experience in the studies, talk about a specific time that you utilized a study, the steps you took and explain why it was important to do in the end. Make sure that your interviewer walks away from the interview comfortable with your ability to utilize feasibility studies in your work.